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Measurement of the ratio of prompt $\chi_{c}$ to $J/\psi$ production in $pp$ collisions at $\sqrt{s}=7$ TeV

The prompt production of charmonium $\chi_{c}$ and $J/\psi$ states is studied in proton-proton collisions at a centre-of-mass energy of $\sqrt{s}=7$ TeV at the Large Hadron Collider. The $\chi_{c}$ and $J/\psi$ mesons are identified through their decays $\chi_{c}\rightarrow J/\psi \gamma$ and $J/\ps...

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Autores principales:	Aaij, R, Abellan Beteta, C, Adeva, B, Adinolfi, M, Adrover, C, Affolder, A, Ajaltouni, Z, Albrecht, J, Alessio, F, Alexander, M, Ali, S, Alkhazov, G, Alvarez Cartelle, P, Alves Jr, A A, Amato, S, Amhis, Y, Anderson, J, Appleby, R B, Aquines Gutierrez, O, Archilli, F, Arrabito, L, Artamonov, A, Artuso, M, Aslanides, E, Auriemma, G, Bachmann, S, Back, J J, Balagura, V, Baldini, W, Barlow, R J, Barschel, C, Barsuk, S, Barter, W, Bates, A, Bauer, C, Bauer, Th, Bay, A, Bediaga, I, Belogurov, S, Belous, K, Belyaev, I, Ben-Haim, E, Benayoun, M, Bencivenni, G, Benson, S, Benton, J, Bernet, R, Bettler, M-O, van Beuzekom, M, Bien, A, Bifani, S, Bird, T, Bizzeti, A, Bjørnstad, P M, Blake, T, Blanc, F, Blanks, C, Blouw, J, Blusk, S, Bobrov, A, Bocci, V, Bondar, A, Bondar, N, Bonivento, W, Borghi, S, Borgia, A, Bowcock, T J V, Bozzi, C, Brambach, T, van den Brand, J, Bressieux, J, Brett, D, Britsch, M, Britton, T, Brook, N H, Brown, H, Büchler-Germann, A, Burducea, I, Bursche, A, Buytaert, J, Cadeddu, S, Callot, O, Calvi, M, Calvo Gomez, M, Camboni, A, Campana, P, Carbone, A, Carboni, G, Cardinale, R, Cardini, A, Carson, L, Carvalho Akiba, K, Casse, G, Cattaneo, M, Cauet, Ch, Charles, M, Charpentier, Ph, Chiapolini, N, Ciba, K, Cid Vidal, X, Ciezarek, G, Clarke, P E L, Clemencic, M, Cliff, H V, Closier, J, Coca, C, Coco, V, Cogan, J, Collins, P, Comerma-Montells, A, Contu, A, Cook, A, Coombes, M, Corti, G, Couturier, B, Cowan, G A, Currie, R, D'Ambrosio, C, David, P, David, P N Y, De Bonis, I, De Bruyn, K, De Capua, S, De Cian, M, De Lorenzi, F, De Miranda, J M, De Paula, L, De Simone, P, Decamp, D, Deckenhoff, M, Degaudenzi, H, Del Buono, L, Deplano, C, Derkach, D, Deschamps, O, Dettori, F, Dickens, J, Dijkstra, H, Diniz Batista, P, Domingo Bonal, F, Donleavy, S, Dordei, F, Dosil Suárez, A, Dossett, D, Dovbnya, A, Dupertuis, F, Dzhelyadin, R, Dziurda, A, Easo, S, Egede, U, Egorychev, V, Eidelman, S, van Eijk, D, Eisele, F, Eisenhardt, S, Ekelhof, R, Eklund, L, Elsasser, Ch, Elsby, D, Esperante Pereira, D, Falabella, A, Färber, C, Fardell, G, Farinelli, C, Farry, S, Fave, V, Fernandez Albor, V, Ferro-Luzzi, M, Filippov, S, Fitzpatrick, C, Fontana, M, Fontanelli, F, Forty, R, Francisco, O, Frank, M, Frei, C, Frosini, M, Furcas, S, Gallas Torreira, A, Galli, D, Gandelman, M, Gandini, P, Gao, Y, Garnier, J-C, Garofoli, J, Garra Tico, J, Garrido, L, Gascon, D, Gaspar, C, Gauld, R, Gauvin, N, Gersabeck, M, Gershon, T, Ghez, Ph, Gibson, V, Gligorov, V V, Göbel, C, Golubkov, D, Golutvin, A, Gomes, A, Gordon, H, Grabalosa Gándara, M, Graciani Diaz, R, Granado Cardoso, L A, Graugés, E, Graziani, G, Grecu, A, Greening, E, Gregson, S, Gui, B, Gushchin, E, Guz, Yu, Gys, T, Hadjivasiliou, C, Haefeli, G, Haen, C, Haines, S C, Hampson, T, Hansmann-Menzemer, S, Harji, R, Harnew, N, Harrison, J, Harrison, P F, Hartmann, T, He, J, Heijne, V, Hennessy, K, Henrard, P, Hernando Morata, J A, van Herwijnen, E, Hicks, E, Holubyev, K, Hopchev, P, Hulsbergen, W, Hunt, P, Huse, T, Huston, R S, Hutchcroft, D, Hynds, D, Iakovenko, V, Ilten, P, Imong, J, Jacobsson, R, Jaeger, A, Jahjah Hussein, M, Jans, E, Jansen, F, Jaton, P, Jean-Marie, B, Jing, F, John, M, Johnson, D, Jones, C R, Jost, B, Kaballo, M, Kandybei, S, Karacson, M, Karbach, T M, Keaveney, J, Kenyon, I R, Kerzel, U, Ketel, T, Keune, A, Khanji, B, Kim, Y M, Knecht, M, Koopman, R F, Koppenburg, P, Korolev, M, Kozlinskiy, A, Kravchuk, L, Kreplin, K, Kreps, M, Krocker, G, Krokovny, P, Kruse, F, Kruzelecki, K, Kucharczyk, M, Kudryavtsev, V, Kvaratskheliya, T, La Thi, V N, Lacarrere, D, Lafferty, G, Lai, A, Lambert, D, Lambert, R W, Lanciotti, E, Lanfranchi, G, Langenbruch, C, Latham, T, Lazzeroni, C, Le Gac, R, van Leerdam, J, Lees, J-P, Lefèvre, R, Leflat, A, Lefrançois, J, Leroy, O, Lesiak, T, Li, L, Li Gioi, L, Lieng, M, Liles, M, Lindner, R, Linn, C, Liu, B, Liu, G, von Loeben, J, Lopes, J H, Lopez Asamar, E, Lopez-March, N, Lu, H, Luisier, J, Mac Raighne, A, Machefert, F, Machikhiliyan, I V, Maciuc, F, Maev, O, Magnin, J, Malde, S, Mamunur, R M D, Manca, G, Mancinelli, G, Mangiafave, N, Marconi, U, Märki, R, Marks, J, Martellotti, G, Martens, A, Martin, L, Martín Sánchez, A, Martinelli, M, Martinez Santos, D, Massafferri, A, Mathe, Z, Matteuzzi, C, Matveev, M, Maurice, E, Maynard, B, Mazurov, A, McGregor, G, McNulty, R, Meissner, M, Merk, M, Merkel, J, Miglioranzi, S, Milanes, D A, Minard, M-N, Molina Rodriguez, J, Monteil, S, Moran, D, Morawski, P, Mountain, R, Mous, I, Muheim, F, Müller, K, Muresan, R, Muryn, B, Muster, B, Mylroie-Smith, J, Naik, P, Nakada, T, Nandakumar, R, Nasteva, I, Needham, M, Neufeld, N, Nguyen, A D, Nguyen-Mau, C, Nicol, M, Niess, V, Nikitin, N, Nikodem, T, Nomerotski, A, Novoselov, A, Oblakowska-Mucha, A, Obraztsov, V, Oggero, S, Ogilvy, S, Okhrimenko, O, Oldeman, R, Orlandea, M, Otalora Goicochea, J M, Owen, P, Pal, B K, Palacios, J, Palano, A, Palutan, M, Panman, J, Papanestis, A, Pappagallo, M, Parkes, C, Parkinson, C J, Passaleva, G, Patel, G D, Patel, M, Paterson, S K, Patrick, G N, Patrignani, C, Pavel-Nicorescu, C, Pazos Alvarez, A, Pellegrino, A, Penso, G, Pepe Altarelli, M, Perazzini, S, Perego, D L, Perez Trigo, E, Pérez-Calero Yzquierdo, A, Perret, P, Perrin-Terrin, M, Pessina, G, Petrolini, A, Phan, A, Picatoste Olloqui, E, Pie Valls, B, Pietrzyk, B, Pilař, T, Pinci, D, Plackett, R, Playfer, S, Plo Casasus, M, Polok, G, Poluektov, A, Polycarpo, E, Popov, D, Popovici, B, Potterat, C, Powell, A, Prisciandaro, J, Pugatch, V, Puig Navarro, A, Qian, W, Rademacker, J H, Rakotomiaramanana, B, Rangel, M S, Raniuk, I, Raven, G, Redford, S, Reid, M M, dos Reis, A C, Ricciardi, S, Richards, A, Rinnert, K, Roa Romero, D A, Robbe, P, Rodrigues, E, Rodrigues, F, Rodriguez Perez, P, Rogers, G J, Roiser, S, Romanovsky, V, Rosello, M, Rouvinet, J, Ruf, T, Ruiz, H, Sabatino, G, Saborido Silva, J J, Sagidova, N, Sail, P, Saitta, B, Salzmann, C, Sannino, M, Santacesaria, R, Santamarina Rios, C, Santinelli, R, Santovetti, E, Sapunov, M, Sarti, A, Satriano, C, Satta, A, Savrie, M, Savrina, D, Schaack, P, Schiller, M, Schleich, S, Schlupp, M, Schmelling, M, Schmidt, B, Schneider, O, Schopper, A, Schune, M-H, Schwemmer, R, Sciascia, B, Sciubba, A, Seco, M, Semennikov, A, Senderowska, K, Sepp, I, Serra, N, Serrano, J, Seyfert, P, Shapkin, M, Shapoval, I, Shatalov, P, Shcheglov, Y, Shears, T, Shekhtman, L, Shevchenko, O, Shevchenko, V, Shires, A, Silva Coutinho, R, Skwarnicki, T, Smith, N A, Smith, E, Sobczak, K, Soler, F J P, Solomin, A, Soomro, F, Souza De Paula, B, Spaan, B, Sparkes, A, Spradlin, P, Stagni, F, Stahl, S, Steinkamp, O, Stoica, S, Stone, S, Storaci, B, Straticiuc, M, Straumann, U, Subbiah, V K, Swientek, S, Szczekowski, M, Szczypka, P, Szumlak, T, T'Jampens, S, Teodorescu, E, Teubert, F, Thomas, C, Thomas, E, van Tilburg, J, Tisserand, V, Tobin, M, Tolk, S, Topp-Joergensen, S, Torr, N, Tournefier, E, Tourneur, S, Tran, M T, Tsaregorodtsev, A, Tuning, N, Ubeda Garcia, M, Ukleja, A, Urquijo, P, Uwer, U, Vagnoni, V, Valenti, G, Vazquez Gomez, R, Vazquez Regueiro, P, Vecchi, S, Velthuis, J J, Veltri, M, Viaud, B, Videau, I, Vieira, D, Vilasis-Cardona, X, Visniakov, J, Vollhardt, A, Volyanskyy, D, Voong, D, Vorobyev, A, Vorobyev, V, Voss, H, Waldi, R, Wandernoth, S, Wang, J, Ward, D R, Watson, N K, Webber, A D, Websdale, D, Whitehead, M, Wiedner, D, Wiggers, L, Wilkinson, G, Williams, M P, Williams, M, Wilson, F F, Wishahi, J, Witek, M, Witzeling, W, Wotton, S A, Wyllie, K, Xie, Y, Xing, F, Xing, Z, Yang, Z, Young, R, Yushchenko, O, Zangoli, M, Zavertyaev, M, Zhang, F, Zhang, L, Zhang, W C, Zhang, Y, Zhelezov, A, Zhong, L, Zvyagin, A
Lenguaje:	eng
Publicado:	2012
Materias:	Particle Physics - Experiment
Acceso en línea:	https://dx.doi.org/10.1016/j.physletb.2012.10.068 http://cds.cern.ch/record/1443497

_version_	1780924712019296256
author	Aaij, R Abellan Beteta, C Adeva, B Adinolfi, M Adrover, C Affolder, A Ajaltouni, Z Albrecht, J Alessio, F Alexander, M Ali, S Alkhazov, G Alvarez Cartelle, P Alves Jr, A A Amato, S Amhis, Y Anderson, J Appleby, R B Aquines Gutierrez, O Archilli, F Arrabito, L Artamonov, A Artuso, M Aslanides, E Auriemma, G Bachmann, S Back, J J Balagura, V Baldini, W Barlow, R J Barschel, C Barsuk, S Barter, W Bates, A Bauer, C Bauer, Th Bay, A Bediaga, I Belogurov, S Belous, K Belyaev, I Ben-Haim, E Benayoun, M Bencivenni, G Benson, S Benton, J Bernet, R Bettler, M-O van Beuzekom, M Bien, A Bifani, S Bird, T Bizzeti, A Bjørnstad, P M Blake, T Blanc, F Blanks, C Blouw, J Blusk, S Bobrov, A Bocci, V Bondar, A Bondar, N Bonivento, W Borghi, S Borgia, A Bowcock, T J V Bozzi, C Brambach, T van den Brand, J Bressieux, J Brett, D Britsch, M Britton, T Brook, N H Brown, H Büchler-Germann, A Burducea, I Bursche, A Buytaert, J Cadeddu, S Callot, O Calvi, M Calvo Gomez, M Camboni, A Campana, P Carbone, A Carboni, G Cardinale, R Cardini, A Carson, L Carvalho Akiba, K Casse, G Cattaneo, M Cauet, Ch Charles, M Charpentier, Ph Chiapolini, N Ciba, K Cid Vidal, X Ciezarek, G Clarke, P E L Clemencic, M Cliff, H V Closier, J Coca, C Coco, V Cogan, J Collins, P Comerma-Montells, A Contu, A Cook, A Coombes, M Corti, G Couturier, B Cowan, G A Currie, R D'Ambrosio, C David, P David, P N Y De Bonis, I De Bruyn, K De Capua, S De Cian, M De Lorenzi, F De Miranda, J M De Paula, L De Simone, P Decamp, D Deckenhoff, M Degaudenzi, H Del Buono, L Deplano, C Derkach, D Deschamps, O Dettori, F Dickens, J Dijkstra, H Diniz Batista, P Domingo Bonal, F Donleavy, S Dordei, F Dosil Suárez, A Dossett, D Dovbnya, A Dupertuis, F Dzhelyadin, R Dziurda, A Easo, S Egede, U Egorychev, V Eidelman, S van Eijk, D Eisele, F Eisenhardt, S Ekelhof, R Eklund, L Elsasser, Ch Elsby, D Esperante Pereira, D Falabella, A Färber, C Fardell, G Farinelli, C Farry, S Fave, V Fernandez Albor, V Ferro-Luzzi, M Filippov, S Fitzpatrick, C Fontana, M Fontanelli, F Forty, R Francisco, O Frank, M Frei, C Frosini, M Furcas, S Gallas Torreira, A Galli, D Gandelman, M Gandini, P Gao, Y Garnier, J-C Garofoli, J Garra Tico, J Garrido, L Gascon, D Gaspar, C Gauld, R Gauvin, N Gersabeck, M Gershon, T Ghez, Ph Gibson, V Gligorov, V V Göbel, C Golubkov, D Golutvin, A Gomes, A Gordon, H Grabalosa Gándara, M Graciani Diaz, R Granado Cardoso, L A Graugés, E Graziani, G Grecu, A Greening, E Gregson, S Gui, B Gushchin, E Guz, Yu Gys, T Hadjivasiliou, C Haefeli, G Haen, C Haines, S C Hampson, T Hansmann-Menzemer, S Harji, R Harnew, N Harrison, J Harrison, P F Hartmann, T He, J Heijne, V Hennessy, K Henrard, P Hernando Morata, J A van Herwijnen, E Hicks, E Holubyev, K Hopchev, P Hulsbergen, W Hunt, P Huse, T Huston, R S Hutchcroft, D Hynds, D Iakovenko, V Ilten, P Imong, J Jacobsson, R Jaeger, A Jahjah Hussein, M Jans, E Jansen, F Jaton, P Jean-Marie, B Jing, F John, M Johnson, D Jones, C R Jost, B Kaballo, M Kandybei, S Karacson, M Karbach, T M Keaveney, J Kenyon, I R Kerzel, U Ketel, T Keune, A Khanji, B Kim, Y M Knecht, M Koopman, R F Koppenburg, P Korolev, M Kozlinskiy, A Kravchuk, L Kreplin, K Kreps, M Krocker, G Krokovny, P Kruse, F Kruzelecki, K Kucharczyk, M Kudryavtsev, V Kvaratskheliya, T La Thi, V N Lacarrere, D Lafferty, G Lai, A Lambert, D Lambert, R W Lanciotti, E Lanfranchi, G Langenbruch, C Latham, T Lazzeroni, C Le Gac, R van Leerdam, J Lees, J-P Lefèvre, R Leflat, A Lefrançois, J Leroy, O Lesiak, T Li, L Li Gioi, L Lieng, M Liles, M Lindner, R Linn, C Liu, B Liu, G von Loeben, J Lopes, J H Lopez Asamar, E Lopez-March, N Lu, H Luisier, J Mac Raighne, A Machefert, F Machikhiliyan, I V Maciuc, F Maev, O Magnin, J Malde, S Mamunur, R M D Manca, G Mancinelli, G Mangiafave, N Marconi, U Märki, R Marks, J Martellotti, G Martens, A Martin, L Martín Sánchez, A Martinelli, M Martinez Santos, D Massafferri, A Mathe, Z Matteuzzi, C Matveev, M Maurice, E Maynard, B Mazurov, A McGregor, G McNulty, R Meissner, M Merk, M Merkel, J Miglioranzi, S Milanes, D A Minard, M-N Molina Rodriguez, J Monteil, S Moran, D Morawski, P Mountain, R Mous, I Muheim, F Müller, K Muresan, R Muryn, B Muster, B Mylroie-Smith, J Naik, P Nakada, T Nandakumar, R Nasteva, I Needham, M Neufeld, N Nguyen, A D Nguyen-Mau, C Nicol, M Niess, V Nikitin, N Nikodem, T Nomerotski, A Novoselov, A Oblakowska-Mucha, A Obraztsov, V Oggero, S Ogilvy, S Okhrimenko, O Oldeman, R Orlandea, M Otalora Goicochea, J M Owen, P Pal, B K Palacios, J Palano, A Palutan, M Panman, J Papanestis, A Pappagallo, M Parkes, C Parkinson, C J Passaleva, G Patel, G D Patel, M Paterson, S K Patrick, G N Patrignani, C Pavel-Nicorescu, C Pazos Alvarez, A Pellegrino, A Penso, G Pepe Altarelli, M Perazzini, S Perego, D L Perez Trigo, E Pérez-Calero Yzquierdo, A Perret, P Perrin-Terrin, M Pessina, G Petrolini, A Phan, A Picatoste Olloqui, E Pie Valls, B Pietrzyk, B Pilař, T Pinci, D Plackett, R Playfer, S Plo Casasus, M Polok, G Poluektov, A Polycarpo, E Popov, D Popovici, B Potterat, C Powell, A Prisciandaro, J Pugatch, V Puig Navarro, A Qian, W Rademacker, J H Rakotomiaramanana, B Rangel, M S Raniuk, I Raven, G Redford, S Reid, M M dos Reis, A C Ricciardi, S Richards, A Rinnert, K Roa Romero, D A Robbe, P Rodrigues, E Rodrigues, F Rodriguez Perez, P Rogers, G J Roiser, S Romanovsky, V Rosello, M Rouvinet, J Ruf, T Ruiz, H Sabatino, G Saborido Silva, J J Sagidova, N Sail, P Saitta, B Salzmann, C Sannino, M Santacesaria, R Santamarina Rios, C Santinelli, R Santovetti, E Sapunov, M Sarti, A Satriano, C Satta, A Savrie, M Savrina, D Schaack, P Schiller, M Schleich, S Schlupp, M Schmelling, M Schmidt, B Schneider, O Schopper, A Schune, M-H Schwemmer, R Sciascia, B Sciubba, A Seco, M Semennikov, A Senderowska, K Sepp, I Serra, N Serrano, J Seyfert, P Shapkin, M Shapoval, I Shatalov, P Shcheglov, Y Shears, T Shekhtman, L Shevchenko, O Shevchenko, V Shires, A Silva Coutinho, R Skwarnicki, T Smith, N A Smith, E Sobczak, K Soler, F J P Solomin, A Soomro, F Souza De Paula, B Spaan, B Sparkes, A Spradlin, P Stagni, F Stahl, S Steinkamp, O Stoica, S Stone, S Storaci, B Straticiuc, M Straumann, U Subbiah, V K Swientek, S Szczekowski, M Szczypka, P Szumlak, T T'Jampens, S Teodorescu, E Teubert, F Thomas, C Thomas, E van Tilburg, J Tisserand, V Tobin, M Tolk, S Topp-Joergensen, S Torr, N Tournefier, E Tourneur, S Tran, M T Tsaregorodtsev, A Tuning, N Ubeda Garcia, M Ukleja, A Urquijo, P Uwer, U Vagnoni, V Valenti, G Vazquez Gomez, R Vazquez Regueiro, P Vecchi, S Velthuis, J J Veltri, M Viaud, B Videau, I Vieira, D Vilasis-Cardona, X Visniakov, J Vollhardt, A Volyanskyy, D Voong, D Vorobyev, A Vorobyev, V Voss, H Waldi, R Wandernoth, S Wang, J Ward, D R Watson, N K Webber, A D Websdale, D Whitehead, M Wiedner, D Wiggers, L Wilkinson, G Williams, M P Williams, M Wilson, F F Wishahi, J Witek, M Witzeling, W Wotton, S A Wyllie, K Xie, Y Xing, F Xing, Z Yang, Z Young, R Yushchenko, O Zangoli, M Zavertyaev, M Zhang, F Zhang, L Zhang, W C Zhang, Y Zhelezov, A Zhong, L Zvyagin, A
author_facet	Aaij, R Abellan Beteta, C Adeva, B Adinolfi, M Adrover, C Affolder, A Ajaltouni, Z Albrecht, J Alessio, F Alexander, M Ali, S Alkhazov, G Alvarez Cartelle, P Alves Jr, A A Amato, S Amhis, Y Anderson, J Appleby, R B Aquines Gutierrez, O Archilli, F Arrabito, L Artamonov, A Artuso, M Aslanides, E Auriemma, G Bachmann, S Back, J J Balagura, V Baldini, W Barlow, R J Barschel, C Barsuk, S Barter, W Bates, A Bauer, C Bauer, Th Bay, A Bediaga, I Belogurov, S Belous, K Belyaev, I Ben-Haim, E Benayoun, M Bencivenni, G Benson, S Benton, J Bernet, R Bettler, M-O van Beuzekom, M Bien, A Bifani, S Bird, T Bizzeti, A Bjørnstad, P M Blake, T Blanc, F Blanks, C Blouw, J Blusk, S Bobrov, A Bocci, V Bondar, A Bondar, N Bonivento, W Borghi, S Borgia, A Bowcock, T J V Bozzi, C Brambach, T van den Brand, J Bressieux, J Brett, D Britsch, M Britton, T Brook, N H Brown, H Büchler-Germann, A Burducea, I Bursche, A Buytaert, J Cadeddu, S Callot, O Calvi, M Calvo Gomez, M Camboni, A Campana, P Carbone, A Carboni, G Cardinale, R Cardini, A Carson, L Carvalho Akiba, K Casse, G Cattaneo, M Cauet, Ch Charles, M Charpentier, Ph Chiapolini, N Ciba, K Cid Vidal, X Ciezarek, G Clarke, P E L Clemencic, M Cliff, H V Closier, J Coca, C Coco, V Cogan, J Collins, P Comerma-Montells, A Contu, A Cook, A Coombes, M Corti, G Couturier, B Cowan, G A Currie, R D'Ambrosio, C David, P David, P N Y De Bonis, I De Bruyn, K De Capua, S De Cian, M De Lorenzi, F De Miranda, J M De Paula, L De Simone, P Decamp, D Deckenhoff, M Degaudenzi, H Del Buono, L Deplano, C Derkach, D Deschamps, O Dettori, F Dickens, J Dijkstra, H Diniz Batista, P Domingo Bonal, F Donleavy, S Dordei, F Dosil Suárez, A Dossett, D Dovbnya, A Dupertuis, F Dzhelyadin, R Dziurda, A Easo, S Egede, U Egorychev, V Eidelman, S van Eijk, D Eisele, F Eisenhardt, S Ekelhof, R Eklund, L Elsasser, Ch Elsby, D Esperante Pereira, D Falabella, A Färber, C Fardell, G Farinelli, C Farry, S Fave, V Fernandez Albor, V Ferro-Luzzi, M Filippov, S Fitzpatrick, C Fontana, M Fontanelli, F Forty, R Francisco, O Frank, M Frei, C Frosini, M Furcas, S Gallas Torreira, A Galli, D Gandelman, M Gandini, P Gao, Y Garnier, J-C Garofoli, J Garra Tico, J Garrido, L Gascon, D Gaspar, C Gauld, R Gauvin, N Gersabeck, M Gershon, T Ghez, Ph Gibson, V Gligorov, V V Göbel, C Golubkov, D Golutvin, A Gomes, A Gordon, H Grabalosa Gándara, M Graciani Diaz, R Granado Cardoso, L A Graugés, E Graziani, G Grecu, A Greening, E Gregson, S Gui, B Gushchin, E Guz, Yu Gys, T Hadjivasiliou, C Haefeli, G Haen, C Haines, S C Hampson, T Hansmann-Menzemer, S Harji, R Harnew, N Harrison, J Harrison, P F Hartmann, T He, J Heijne, V Hennessy, K Henrard, P Hernando Morata, J A van Herwijnen, E Hicks, E Holubyev, K Hopchev, P Hulsbergen, W Hunt, P Huse, T Huston, R S Hutchcroft, D Hynds, D Iakovenko, V Ilten, P Imong, J Jacobsson, R Jaeger, A Jahjah Hussein, M Jans, E Jansen, F Jaton, P Jean-Marie, B Jing, F John, M Johnson, D Jones, C R Jost, B Kaballo, M Kandybei, S Karacson, M Karbach, T M Keaveney, J Kenyon, I R Kerzel, U Ketel, T Keune, A Khanji, B Kim, Y M Knecht, M Koopman, R F Koppenburg, P Korolev, M Kozlinskiy, A Kravchuk, L Kreplin, K Kreps, M Krocker, G Krokovny, P Kruse, F Kruzelecki, K Kucharczyk, M Kudryavtsev, V Kvaratskheliya, T La Thi, V N Lacarrere, D Lafferty, G Lai, A Lambert, D Lambert, R W Lanciotti, E Lanfranchi, G Langenbruch, C Latham, T Lazzeroni, C Le Gac, R van Leerdam, J Lees, J-P Lefèvre, R Leflat, A Lefrançois, J Leroy, O Lesiak, T Li, L Li Gioi, L Lieng, M Liles, M Lindner, R Linn, C Liu, B Liu, G von Loeben, J Lopes, J H Lopez Asamar, E Lopez-March, N Lu, H Luisier, J Mac Raighne, A Machefert, F Machikhiliyan, I V Maciuc, F Maev, O Magnin, J Malde, S Mamunur, R M D Manca, G Mancinelli, G Mangiafave, N Marconi, U Märki, R Marks, J Martellotti, G Martens, A Martin, L Martín Sánchez, A Martinelli, M Martinez Santos, D Massafferri, A Mathe, Z Matteuzzi, C Matveev, M Maurice, E Maynard, B Mazurov, A McGregor, G McNulty, R Meissner, M Merk, M Merkel, J Miglioranzi, S Milanes, D A Minard, M-N Molina Rodriguez, J Monteil, S Moran, D Morawski, P Mountain, R Mous, I Muheim, F Müller, K Muresan, R Muryn, B Muster, B Mylroie-Smith, J Naik, P Nakada, T Nandakumar, R Nasteva, I Needham, M Neufeld, N Nguyen, A D Nguyen-Mau, C Nicol, M Niess, V Nikitin, N Nikodem, T Nomerotski, A Novoselov, A Oblakowska-Mucha, A Obraztsov, V Oggero, S Ogilvy, S Okhrimenko, O Oldeman, R Orlandea, M Otalora Goicochea, J M Owen, P Pal, B K Palacios, J Palano, A Palutan, M Panman, J Papanestis, A Pappagallo, M Parkes, C Parkinson, C J Passaleva, G Patel, G D Patel, M Paterson, S K Patrick, G N Patrignani, C Pavel-Nicorescu, C Pazos Alvarez, A Pellegrino, A Penso, G Pepe Altarelli, M Perazzini, S Perego, D L Perez Trigo, E Pérez-Calero Yzquierdo, A Perret, P Perrin-Terrin, M Pessina, G Petrolini, A Phan, A Picatoste Olloqui, E Pie Valls, B Pietrzyk, B Pilař, T Pinci, D Plackett, R Playfer, S Plo Casasus, M Polok, G Poluektov, A Polycarpo, E Popov, D Popovici, B Potterat, C Powell, A Prisciandaro, J Pugatch, V Puig Navarro, A Qian, W Rademacker, J H Rakotomiaramanana, B Rangel, M S Raniuk, I Raven, G Redford, S Reid, M M dos Reis, A C Ricciardi, S Richards, A Rinnert, K Roa Romero, D A Robbe, P Rodrigues, E Rodrigues, F Rodriguez Perez, P Rogers, G J Roiser, S Romanovsky, V Rosello, M Rouvinet, J Ruf, T Ruiz, H Sabatino, G Saborido Silva, J J Sagidova, N Sail, P Saitta, B Salzmann, C Sannino, M Santacesaria, R Santamarina Rios, C Santinelli, R Santovetti, E Sapunov, M Sarti, A Satriano, C Satta, A Savrie, M Savrina, D Schaack, P Schiller, M Schleich, S Schlupp, M Schmelling, M Schmidt, B Schneider, O Schopper, A Schune, M-H Schwemmer, R Sciascia, B Sciubba, A Seco, M Semennikov, A Senderowska, K Sepp, I Serra, N Serrano, J Seyfert, P Shapkin, M Shapoval, I Shatalov, P Shcheglov, Y Shears, T Shekhtman, L Shevchenko, O Shevchenko, V Shires, A Silva Coutinho, R Skwarnicki, T Smith, N A Smith, E Sobczak, K Soler, F J P Solomin, A Soomro, F Souza De Paula, B Spaan, B Sparkes, A Spradlin, P Stagni, F Stahl, S Steinkamp, O Stoica, S Stone, S Storaci, B Straticiuc, M Straumann, U Subbiah, V K Swientek, S Szczekowski, M Szczypka, P Szumlak, T T'Jampens, S Teodorescu, E Teubert, F Thomas, C Thomas, E van Tilburg, J Tisserand, V Tobin, M Tolk, S Topp-Joergensen, S Torr, N Tournefier, E Tourneur, S Tran, M T Tsaregorodtsev, A Tuning, N Ubeda Garcia, M Ukleja, A Urquijo, P Uwer, U Vagnoni, V Valenti, G Vazquez Gomez, R Vazquez Regueiro, P Vecchi, S Velthuis, J J Veltri, M Viaud, B Videau, I Vieira, D Vilasis-Cardona, X Visniakov, J Vollhardt, A Volyanskyy, D Voong, D Vorobyev, A Vorobyev, V Voss, H Waldi, R Wandernoth, S Wang, J Ward, D R Watson, N K Webber, A D Websdale, D Whitehead, M Wiedner, D Wiggers, L Wilkinson, G Williams, M P Williams, M Wilson, F F Wishahi, J Witek, M Witzeling, W Wotton, S A Wyllie, K Xie, Y Xing, F Xing, Z Yang, Z Young, R Yushchenko, O Zangoli, M Zavertyaev, M Zhang, F Zhang, L Zhang, W C Zhang, Y Zhelezov, A Zhong, L Zvyagin, A
author_sort	Aaij, R
collection	CERN
description	The prompt production of charmonium $\chi_{c}$ and $J/\psi$ states is studied in proton-proton collisions at a centre-of-mass energy of $\sqrt{s}=7$ TeV at the Large Hadron Collider. The $\chi_{c}$ and $J/\psi$ mesons are identified through their decays $\chi_{c}\rightarrow J/\psi \gamma$ and $J/\psi\rightarrow \mu^+\mu^-$ using 36 pb$^{-1}$ of data collected by the LHCb detector in 2010. The ratio of the prompt production cross-sections for $\chi_{c}$ and $J/\psi$, $\sigma (\chi_{c}\rightarrow J/\psi \gamma)/ \sigma (J/\psi)$, is determined as a function of the $J/\psi$ transverse momentum in the range $2 < p_{\mathrm T}^{J/\psi} < 15$ GeV/$c$. The results are in excellent agreement with next-to-leading order non-relativistic expectations and show a significant discrepancy compared with the colour singlet model prediction at leading order, especially in the low $p_{\mathrm T}^{J/\psi}$ region.
id	cern-1439446
institution	Organización Europea para la Investigación Nuclear
language	eng
publishDate	2012
record_format	invenio
spelling	cern-14394462023-03-17T03:23:28Zdoi:10.1016/j.physletb.2012.10.068http://cds.cern.ch/record/1443497engAaij, RAbellan Beteta, CAdeva, BAdinolfi, MAdrover, CAffolder, AAjaltouni, ZAlbrecht, JAlessio, FAlexander, MAli, SAlkhazov, GAlvarez Cartelle, PAlves Jr, A AAmato, SAmhis, YAnderson, JAppleby, R BAquines Gutierrez, OArchilli, FArrabito, LArtamonov, AArtuso, MAslanides, EAuriemma, GBachmann, SBack, J JBalagura, VBaldini, WBarlow, R JBarschel, CBarsuk, SBarter, WBates, ABauer, CBauer, ThBay, ABediaga, IBelogurov, SBelous, KBelyaev, IBen-Haim, EBenayoun, MBencivenni, GBenson, SBenton, JBernet, RBettler, M-Ovan Beuzekom, MBien, ABifani, SBird, TBizzeti, ABjørnstad, P MBlake, TBlanc, FBlanks, CBlouw, JBlusk, SBobrov, ABocci, VBondar, ABondar, NBonivento, WBorghi, SBorgia, ABowcock, T J VBozzi, CBrambach, Tvan den Brand, JBressieux, JBrett, DBritsch, MBritton, TBrook, N HBrown, HBüchler-Germann, ABurducea, IBursche, ABuytaert, JCadeddu, SCallot, OCalvi, MCalvo Gomez, MCamboni, ACampana, PCarbone, ACarboni, GCardinale, RCardini, ACarson, LCarvalho Akiba, KCasse, GCattaneo, MCauet, ChCharles, MCharpentier, PhChiapolini, NCiba, KCid Vidal, XCiezarek, GClarke, P E LClemencic, MCliff, H VClosier, JCoca, CCoco, VCogan, JCollins, PComerma-Montells, AContu, ACook, ACoombes, MCorti, GCouturier, BCowan, G ACurrie, RD'Ambrosio, CDavid, PDavid, P N YDe Bonis, IDe Bruyn, KDe Capua, SDe Cian, MDe Lorenzi, FDe Miranda, J MDe Paula, LDe Simone, PDecamp, DDeckenhoff, MDegaudenzi, HDel Buono, LDeplano, CDerkach, DDeschamps, ODettori, FDickens, JDijkstra, HDiniz Batista, PDomingo Bonal, FDonleavy, SDordei, FDosil Suárez, ADossett, DDovbnya, ADupertuis, FDzhelyadin, RDziurda, AEaso, SEgede, UEgorychev, VEidelman, Svan Eijk, DEisele, FEisenhardt, SEkelhof, REklund, LElsasser, ChElsby, DEsperante Pereira, DFalabella, AFärber, CFardell, GFarinelli, CFarry, SFave, VFernandez Albor, VFerro-Luzzi, MFilippov, SFitzpatrick, CFontana, MFontanelli, FForty, RFrancisco, OFrank, MFrei, CFrosini, MFurcas, SGallas Torreira, AGalli, DGandelman, MGandini, PGao, YGarnier, J-CGarofoli, JGarra Tico, JGarrido, LGascon, DGaspar, CGauld, RGauvin, NGersabeck, MGershon, TGhez, PhGibson, VGligorov, V VGöbel, CGolubkov, DGolutvin, AGomes, AGordon, HGrabalosa Gándara, MGraciani Diaz, RGranado Cardoso, L AGraugés, EGraziani, GGrecu, AGreening, EGregson, SGui, BGushchin, EGuz, YuGys, THadjivasiliou, CHaefeli, GHaen, CHaines, S CHampson, THansmann-Menzemer, SHarji, RHarnew, NHarrison, JHarrison, P FHartmann, THe, JHeijne, VHennessy, KHenrard, PHernando Morata, J Avan Herwijnen, EHicks, EHolubyev, KHopchev, PHulsbergen, WHunt, PHuse, THuston, R SHutchcroft, DHynds, DIakovenko, VIlten, PImong, JJacobsson, RJaeger, AJahjah Hussein, MJans, EJansen, FJaton, PJean-Marie, BJing, FJohn, MJohnson, DJones, C RJost, BKaballo, MKandybei, SKaracson, MKarbach, T MKeaveney, JKenyon, I RKerzel, UKetel, TKeune, AKhanji, BKim, Y MKnecht, MKoopman, R FKoppenburg, PKorolev, MKozlinskiy, AKravchuk, LKreplin, KKreps, MKrocker, GKrokovny, PKruse, FKruzelecki, KKucharczyk, MKudryavtsev, VKvaratskheliya, TLa Thi, V NLacarrere, DLafferty, GLai, ALambert, DLambert, R WLanciotti, ELanfranchi, GLangenbruch, CLatham, TLazzeroni, CLe Gac, Rvan Leerdam, JLees, J-PLefèvre, RLeflat, ALefrançois, JLeroy, OLesiak, TLi, LLi Gioi, LLieng, MLiles, MLindner, RLinn, CLiu, BLiu, Gvon Loeben, JLopes, J HLopez Asamar, ELopez-March, NLu, HLuisier, JMac Raighne, AMachefert, FMachikhiliyan, I VMaciuc, FMaev, OMagnin, JMalde, SMamunur, R M DManca, GMancinelli, GMangiafave, NMarconi, UMärki, RMarks, JMartellotti, GMartens, AMartin, LMartín Sánchez, AMartinelli, MMartinez Santos, DMassafferri, AMathe, ZMatteuzzi, CMatveev, MMaurice, EMaynard, BMazurov, AMcGregor, GMcNulty, RMeissner, MMerk, MMerkel, JMiglioranzi, SMilanes, D AMinard, M-NMolina Rodriguez, JMonteil, SMoran, DMorawski, PMountain, RMous, IMuheim, FMüller, KMuresan, RMuryn, BMuster, BMylroie-Smith, JNaik, PNakada, TNandakumar, RNasteva, INeedham, MNeufeld, NNguyen, A DNguyen-Mau, CNicol, MNiess, VNikitin, NNikodem, TNomerotski, ANovoselov, AOblakowska-Mucha, AObraztsov, VOggero, SOgilvy, SOkhrimenko, OOldeman, ROrlandea, MOtalora Goicochea, J MOwen, PPal, B KPalacios, JPalano, APalutan, MPanman, JPapanestis, APappagallo, MParkes, CParkinson, C JPassaleva, GPatel, G DPatel, MPaterson, S KPatrick, G NPatrignani, CPavel-Nicorescu, CPazos Alvarez, APellegrino, APenso, GPepe Altarelli, MPerazzini, SPerego, D LPerez Trigo, EPérez-Calero Yzquierdo, APerret, PPerrin-Terrin, MPessina, GPetrolini, APhan, APicatoste Olloqui, EPie Valls, BPietrzyk, BPilař, TPinci, DPlackett, RPlayfer, SPlo Casasus, MPolok, GPoluektov, APolycarpo, EPopov, DPopovici, BPotterat, CPowell, APrisciandaro, JPugatch, VPuig Navarro, AQian, WRademacker, J HRakotomiaramanana, BRangel, M SRaniuk, IRaven, GRedford, SReid, M Mdos Reis, A CRicciardi, SRichards, ARinnert, KRoa Romero, D ARobbe, PRodrigues, ERodrigues, FRodriguez Perez, PRogers, G JRoiser, SRomanovsky, VRosello, MRouvinet, JRuf, TRuiz, HSabatino, GSaborido Silva, J JSagidova, NSail, PSaitta, BSalzmann, CSannino, MSantacesaria, RSantamarina Rios, CSantinelli, RSantovetti, ESapunov, MSarti, ASatriano, CSatta, ASavrie, MSavrina, DSchaack, PSchiller, MSchleich, SSchlupp, MSchmelling, MSchmidt, BSchneider, OSchopper, ASchune, M-HSchwemmer, RSciascia, BSciubba, ASeco, MSemennikov, ASenderowska, KSepp, ISerra, NSerrano, JSeyfert, PShapkin, MShapoval, IShatalov, PShcheglov, YShears, TShekhtman, LShevchenko, OShevchenko, VShires, ASilva Coutinho, RSkwarnicki, TSmith, N ASmith, ESobczak, KSoler, F J PSolomin, ASoomro, FSouza De Paula, BSpaan, BSparkes, ASpradlin, PStagni, FStahl, SSteinkamp, OStoica, SStone, SStoraci, BStraticiuc, MStraumann, USubbiah, V KSwientek, SSzczekowski, MSzczypka, PSzumlak, TT'Jampens, STeodorescu, ETeubert, FThomas, CThomas, Evan Tilburg, JTisserand, VTobin, MTolk, STopp-Joergensen, STorr, NTournefier, ETourneur, STran, M TTsaregorodtsev, ATuning, NUbeda Garcia, MUkleja, AUrquijo, PUwer, UVagnoni, VValenti, GVazquez Gomez, RVazquez Regueiro, PVecchi, SVelthuis, J JVeltri, MViaud, BVideau, IVieira, DVilasis-Cardona, XVisniakov, JVollhardt, AVolyanskyy, DVoong, DVorobyev, AVorobyev, VVoss, HWaldi, RWandernoth, SWang, JWard, D RWatson, N KWebber, A DWebsdale, DWhitehead, MWiedner, DWiggers, LWilkinson, GWilliams, M PWilliams, MWilson, F FWishahi, JWitek, MWitzeling, WWotton, S AWyllie, KXie, YXing, FXing, ZYang, ZYoung, RYushchenko, OZangoli, MZavertyaev, MZhang, FZhang, LZhang, W CZhang, YZhelezov, AZhong, LZvyagin, AMeasurement of the ratio of prompt $\chi_{c}$ to $J/\psi$ production in $pp$ collisions at $\sqrt{s}=7$ TeVParticle Physics - ExperimentThe prompt production of charmonium $\chi_{c}$ and $J/\psi$ states is studied in proton-proton collisions at a centre-of-mass energy of $\sqrt{s}=7$ TeV at the Large Hadron Collider. The $\chi_{c}$ and $J/\psi$ mesons are identified through their decays $\chi_{c}\rightarrow J/\psi \gamma$ and $J/\psi\rightarrow \mu^+\mu^-$ using 36 pb$^{-1}$ of data collected by the LHCb detector in 2010. The ratio of the prompt production cross-sections for $\chi_{c}$ and $J/\psi$, $\sigma (\chi_{c}\rightarrow J/\psi \gamma)/ \sigma (J/\psi)$, is determined as a function of the $J/\psi$ transverse momentum in the range $2 < p_{\mathrm T}^{J/\psi} < 15$ GeV/$c$. The results are in excellent agreement with next-to-leading order non-relativistic expectations and show a significant discrepancy compared with the colour singlet model prediction at leading order, especially in the low $p_{\mathrm T}^{J/\psi}$ region.The prompt production of charmonium $\chi_{c}$ and $J/\psi$ states is studied in proton-proton collisions at a centre-of-mass energy of $\sqrt{s}=7$ TeV at the Large Hadron Collider. The $\chi_{c}$ and $J/\psi$ mesons are identified through their decays $\chi_{c}\rightarrow J/\psi \gamma$ and $J/\psi\rightarrow \mu^+\mu^-$ using 36 pb$^{-1}$ of data collected by the LHCb detector in 2010. The ratio of the prompt production cross-sections for $\chi_{c}$ and $J/\psi$, $\sigma (\chi_{c}\rightarrow J/\psi \gamma)/ \sigma (J/\psi)$, is determined as a function of the $J/\psi$ transverse momentum in the range $2 < p_{\mathrm T}^{J/\psi} < 15$ GeV/$c$. The results are in excellent agreement with next-to-leading order non-relativistic expectations and show a significant discrepancy compared with the colour singlet model prediction at leading order, especially in the low $p_{\mathrm T}^{J/\psi}$ region.The prompt production of charmonium $\chi_{c}$ and $J/\psi$ states is studied in proton-proton collisions at a centre-of-mass energy of $\sqrt{s}=7$ TeV at the Large Hadron Collider. The $\chi_{c}$ and $J/\psi$ mesons are identified through their decays $\chi_{c}\rightarrow J/\psi \gamma$ and $J/\psi\rightarrow \mu^+\mu^-$ using 36 pb$^{-1}$ of data collected by the LHCb detector in 2010. The ratio of the prompt production cross-sections for $\chi_{c}$ and $J/\psi$, $\sigma (\chi_{c}\rightarrow J/\psi \gamma)/ \sigma (J/\psi)$, is determined as a function of the $J/\psi$ transverse momentum in the range $2 < p_{\mathrm T}^{J/\psi} < 15$ GeV/$c$. The results are in excellent agreement with next-to-leading order non-relativistic expectations and show a significant discrepancy compared with the colour singlet model prediction at leading order, especially in the low $p_{\mathrm T}^{J/\psi}$ region.The prompt production of charmonium $\chi_{c}$ and $J/\psi$ states is studied in proton-proton collisions at a centre-of-mass energy of $\sqrt{s}=7$ TeV at the Large Hadron Collider. The $\chi_{c}$ and $J/\psi$ mesons are identified through their decays $\chi_{c}\rightarrow J/\psi \gamma$ and $J/\psi\rightarrow \mu^+\mu^-$ using 36 pb$^{-1}$ of data collected by the LHCb detector in 2010. The ratio of the prompt production cross-sections for $\chi_{c}$ and $J/\psi$, $\sigma (\chi_{c}\rightarrow J/\psi \gamma)/ \sigma (J/\psi)$, is determined as a function of the $J/\psi$ transverse momentum in the range $2 < p_{\mathrm T}^{J/\psi} < 15$ GeV/$c$. The results are in excellent agreement with next-to-leading order non-relativistic expectations and show a significant discrepancy compared with the colour singlet model prediction at leading order, especially in the low $p_{\mathrm T}^{J/\psi}$ region.The prompt production of charmonium $\chi_{c}$ and $J/\psi$ states is studied in proton-proton collisions at a centre-of-mass energy of $\sqrt{s}=7$ TeV at the Large Hadron Collider. The $\chi_{c}$ and $J/\psi$ mesons are identified through their decays $\chi_{c}\rightarrow J/\psi \gamma$ and $J/\psi\rightarrow \mu^+\mu^-$ using 36 pb$^{-1}$ of data collected by the LHCb detector in 2010. The ratio of the prompt production cross-sections for $\chi_{c}$ and $J/\psi$, $\sigma (\chi_{c}\rightarrow J/\psi \gamma)/ \sigma (J/\psi)$, is determined as a function of the $J/\psi$ transverse momentum in the range $2 < p_{\mathrm T}^{J/\psi} < 15$ GeV/$c$. The results are in excellent agreement with next-to-leading order non-relativistic expectations and show a significant discrepancy compared with the colour singlet model prediction at leading order, especially in the low $p_{\mathrm T}^{J/\psi}$ region.The prompt production of charmonium $\chi_{c}$ and $J/\psi$ states is studied in proton-proton collisions at a centre-of-mass energy of $\sqrt{s}=7$ TeV at the Large Hadron Collider. The $\chi_{c}$ and $J/\psi$ mesons are identified through their decays $\chi_{c}\rightarrow J/\psi \gamma$ and $J/\psi\rightarrow \mu^+\mu^-$ using 36 pb$^{-1}$ of data collected by the LHCb detector in 2010. The ratio of the prompt production cross-sections for $\chi_{c}$ and $J/\psi$, $\sigma (\chi_{c}\rightarrow J/\psi \gamma)/ \sigma (J/\psi)$, is determined as a function of the $J/\psi$ transverse momentum in the range $2 < p_{\mathrm T}^{J/\psi} < 15$ GeV/$c$. The results are in excellent agreement with next-to-leading order non-relativistic expectations and show a significant discrepancy compared with the colour singlet model prediction at leading order, especially in the low $p_{\mathrm T}^{J/\psi}$ region.The prompt production of charmonium $\chi_{c}$ and $J/\psi$ states is studied in proton-proton collisions at a centre-of-mass energy of $\sqrt{s}=7$ TeV at the Large Hadron Collider. The $\chi_{c}$ and $J/\psi$ mesons are identified through their decays $\chi_{c}\rightarrow J/\psi \gamma$ and $J/\psi\rightarrow \mu^+\mu^-$ using 36 pb$^{-1}$ of data collected by the LHCb detector in 2010. The ratio of the prompt production cross-sections for $\chi_{c}$ and $J/\psi$, $\sigma (\chi_{c}\rightarrow J/\psi \gamma)/ \sigma (J/\psi)$, is determined as a function of the $J/\psi$ transverse momentum in the range $2 < p_{\mathrm T}^{J/\psi} < 15$ GeV/$c$. The results are in excellent agreement with next-to-leading order non-relativistic expectations and show a significant discrepancy compared with the colour singlet model prediction at leading order, especially in the low $p_{\mathrm T}^{J/\psi}$ region.The prompt production of charmonium χc and J/ψ states is studied in proton–proton collisions at a centre-of-mass energy of s=7 TeV at the Large Hadron Collider. The χc and J/ψ mesons are identified through their decays χc→J/ψγ and J/ψ→μ+μ− using 36 pb−1 of data collected by the LHCb detector in 2010. The ratio of the prompt production cross-sections for χc and J/ψ , σ(χc→J/ψγ)/σ(J/ψ) , is determined as a function of the J/ψ transverse momentum in the range 2<pTJ/ψ<15 GeV/c . The results are in excellent agreement with next-to-leading order non-relativistic expectations and show a significant discrepancy compared with the colour singlet model prediction at leading order, especially in the low pTJ/ψ region.arXiv:1204.1462CERN-PH-EP-2012-068LHCB-PAPER-2011-030CERN-PH-EP-2012-068LHCB-PAPER-2011-030oai:cds.cern.ch:14394462012-04-25
spellingShingle	Particle Physics - Experiment Aaij, R Abellan Beteta, C Adeva, B Adinolfi, M Adrover, C Affolder, A Ajaltouni, Z Albrecht, J Alessio, F Alexander, M Ali, S Alkhazov, G Alvarez Cartelle, P Alves Jr, A A Amato, S Amhis, Y Anderson, J Appleby, R B Aquines Gutierrez, O Archilli, F Arrabito, L Artamonov, A Artuso, M Aslanides, E Auriemma, G Bachmann, S Back, J J Balagura, V Baldini, W Barlow, R J Barschel, C Barsuk, S Barter, W Bates, A Bauer, C Bauer, Th Bay, A Bediaga, I Belogurov, S Belous, K Belyaev, I Ben-Haim, E Benayoun, M Bencivenni, G Benson, S Benton, J Bernet, R Bettler, M-O van Beuzekom, M Bien, A Bifani, S Bird, T Bizzeti, A Bjørnstad, P M Blake, T Blanc, F Blanks, C Blouw, J Blusk, S Bobrov, A Bocci, V Bondar, A Bondar, N Bonivento, W Borghi, S Borgia, A Bowcock, T J V Bozzi, C Brambach, T van den Brand, J Bressieux, J Brett, D Britsch, M Britton, T Brook, N H Brown, H Büchler-Germann, A Burducea, I Bursche, A Buytaert, J Cadeddu, S Callot, O Calvi, M Calvo Gomez, M Camboni, A Campana, P Carbone, A Carboni, G Cardinale, R Cardini, A Carson, L Carvalho Akiba, K Casse, G Cattaneo, M Cauet, Ch Charles, M Charpentier, Ph Chiapolini, N Ciba, K Cid Vidal, X Ciezarek, G Clarke, P E L Clemencic, M Cliff, H V Closier, J Coca, C Coco, V Cogan, J Collins, P Comerma-Montells, A Contu, A Cook, A Coombes, M Corti, G Couturier, B Cowan, G A Currie, R D'Ambrosio, C David, P David, P N Y De Bonis, I De Bruyn, K De Capua, S De Cian, M De Lorenzi, F De Miranda, J M De Paula, L De Simone, P Decamp, D Deckenhoff, M Degaudenzi, H Del Buono, L Deplano, C Derkach, D Deschamps, O Dettori, F Dickens, J Dijkstra, H Diniz Batista, P Domingo Bonal, F Donleavy, S Dordei, F Dosil Suárez, A Dossett, D Dovbnya, A Dupertuis, F Dzhelyadin, R Dziurda, A Easo, S Egede, U Egorychev, V Eidelman, S van Eijk, D Eisele, F Eisenhardt, S Ekelhof, R Eklund, L Elsasser, Ch Elsby, D Esperante Pereira, D Falabella, A Färber, C Fardell, G Farinelli, C Farry, S Fave, V Fernandez Albor, V Ferro-Luzzi, M Filippov, S Fitzpatrick, C Fontana, M Fontanelli, F Forty, R Francisco, O Frank, M Frei, C Frosini, M Furcas, S Gallas Torreira, A Galli, D Gandelman, M Gandini, P Gao, Y Garnier, J-C Garofoli, J Garra Tico, J Garrido, L Gascon, D Gaspar, C Gauld, R Gauvin, N Gersabeck, M Gershon, T Ghez, Ph Gibson, V Gligorov, V V Göbel, C Golubkov, D Golutvin, A Gomes, A Gordon, H Grabalosa Gándara, M Graciani Diaz, R Granado Cardoso, L A Graugés, E Graziani, G Grecu, A Greening, E Gregson, S Gui, B Gushchin, E Guz, Yu Gys, T Hadjivasiliou, C Haefeli, G Haen, C Haines, S C Hampson, T Hansmann-Menzemer, S Harji, R Harnew, N Harrison, J Harrison, P F Hartmann, T He, J Heijne, V Hennessy, K Henrard, P Hernando Morata, J A van Herwijnen, E Hicks, E Holubyev, K Hopchev, P Hulsbergen, W Hunt, P Huse, T Huston, R S Hutchcroft, D Hynds, D Iakovenko, V Ilten, P Imong, J Jacobsson, R Jaeger, A Jahjah Hussein, M Jans, E Jansen, F Jaton, P Jean-Marie, B Jing, F John, M Johnson, D Jones, C R Jost, B Kaballo, M Kandybei, S Karacson, M Karbach, T M Keaveney, J Kenyon, I R Kerzel, U Ketel, T Keune, A Khanji, B Kim, Y M Knecht, M Koopman, R F Koppenburg, P Korolev, M Kozlinskiy, A Kravchuk, L Kreplin, K Kreps, M Krocker, G Krokovny, P Kruse, F Kruzelecki, K Kucharczyk, M Kudryavtsev, V Kvaratskheliya, T La Thi, V N Lacarrere, D Lafferty, G Lai, A Lambert, D Lambert, R W Lanciotti, E Lanfranchi, G Langenbruch, C Latham, T Lazzeroni, C Le Gac, R van Leerdam, J Lees, J-P Lefèvre, R Leflat, A Lefrançois, J Leroy, O Lesiak, T Li, L Li Gioi, L Lieng, M Liles, M Lindner, R Linn, C Liu, B Liu, G von Loeben, J Lopes, J H Lopez Asamar, E Lopez-March, N Lu, H Luisier, J Mac Raighne, A Machefert, F Machikhiliyan, I V Maciuc, F Maev, O Magnin, J Malde, S Mamunur, R M D Manca, G Mancinelli, G Mangiafave, N Marconi, U Märki, R Marks, J Martellotti, G Martens, A Martin, L Martín Sánchez, A Martinelli, M Martinez Santos, D Massafferri, A Mathe, Z Matteuzzi, C Matveev, M Maurice, E Maynard, B Mazurov, A McGregor, G McNulty, R Meissner, M Merk, M Merkel, J Miglioranzi, S Milanes, D A Minard, M-N Molina Rodriguez, J Monteil, S Moran, D Morawski, P Mountain, R Mous, I Muheim, F Müller, K Muresan, R Muryn, B Muster, B Mylroie-Smith, J Naik, P Nakada, T Nandakumar, R Nasteva, I Needham, M Neufeld, N Nguyen, A D Nguyen-Mau, C Nicol, M Niess, V Nikitin, N Nikodem, T Nomerotski, A Novoselov, A Oblakowska-Mucha, A Obraztsov, V Oggero, S Ogilvy, S Okhrimenko, O Oldeman, R Orlandea, M Otalora Goicochea, J M Owen, P Pal, B K Palacios, J Palano, A Palutan, M Panman, J Papanestis, A Pappagallo, M Parkes, C Parkinson, C J Passaleva, G Patel, G D Patel, M Paterson, S K Patrick, G N Patrignani, C Pavel-Nicorescu, C Pazos Alvarez, A Pellegrino, A Penso, G Pepe Altarelli, M Perazzini, S Perego, D L Perez Trigo, E Pérez-Calero Yzquierdo, A Perret, P Perrin-Terrin, M Pessina, G Petrolini, A Phan, A Picatoste Olloqui, E Pie Valls, B Pietrzyk, B Pilař, T Pinci, D Plackett, R Playfer, S Plo Casasus, M Polok, G Poluektov, A Polycarpo, E Popov, D Popovici, B Potterat, C Powell, A Prisciandaro, J Pugatch, V Puig Navarro, A Qian, W Rademacker, J H Rakotomiaramanana, B Rangel, M S Raniuk, I Raven, G Redford, S Reid, M M dos Reis, A C Ricciardi, S Richards, A Rinnert, K Roa Romero, D A Robbe, P Rodrigues, E Rodrigues, F Rodriguez Perez, P Rogers, G J Roiser, S Romanovsky, V Rosello, M Rouvinet, J Ruf, T Ruiz, H Sabatino, G Saborido Silva, J J Sagidova, N Sail, P Saitta, B Salzmann, C Sannino, M Santacesaria, R Santamarina Rios, C Santinelli, R Santovetti, E Sapunov, M Sarti, A Satriano, C Satta, A Savrie, M Savrina, D Schaack, P Schiller, M Schleich, S Schlupp, M Schmelling, M Schmidt, B Schneider, O Schopper, A Schune, M-H Schwemmer, R Sciascia, B Sciubba, A Seco, M Semennikov, A Senderowska, K Sepp, I Serra, N Serrano, J Seyfert, P Shapkin, M Shapoval, I Shatalov, P Shcheglov, Y Shears, T Shekhtman, L Shevchenko, O Shevchenko, V Shires, A Silva Coutinho, R Skwarnicki, T Smith, N A Smith, E Sobczak, K Soler, F J P Solomin, A Soomro, F Souza De Paula, B Spaan, B Sparkes, A Spradlin, P Stagni, F Stahl, S Steinkamp, O Stoica, S Stone, S Storaci, B Straticiuc, M Straumann, U Subbiah, V K Swientek, S Szczekowski, M Szczypka, P Szumlak, T T'Jampens, S Teodorescu, E Teubert, F Thomas, C Thomas, E van Tilburg, J Tisserand, V Tobin, M Tolk, S Topp-Joergensen, S Torr, N Tournefier, E Tourneur, S Tran, M T Tsaregorodtsev, A Tuning, N Ubeda Garcia, M Ukleja, A Urquijo, P Uwer, U Vagnoni, V Valenti, G Vazquez Gomez, R Vazquez Regueiro, P Vecchi, S Velthuis, J J Veltri, M Viaud, B Videau, I Vieira, D Vilasis-Cardona, X Visniakov, J Vollhardt, A Volyanskyy, D Voong, D Vorobyev, A Vorobyev, V Voss, H Waldi, R Wandernoth, S Wang, J Ward, D R Watson, N K Webber, A D Websdale, D Whitehead, M Wiedner, D Wiggers, L Wilkinson, G Williams, M P Williams, M Wilson, F F Wishahi, J Witek, M Witzeling, W Wotton, S A Wyllie, K Xie, Y Xing, F Xing, Z Yang, Z Young, R Yushchenko, O Zangoli, M Zavertyaev, M Zhang, F Zhang, L Zhang, W C Zhang, Y Zhelezov, A Zhong, L Zvyagin, A Measurement of the ratio of prompt $\chi_{c}$ to $J/\psi$ production in $pp$ collisions at $\sqrt{s}=7$ TeV
title	Measurement of the ratio of prompt $\chi_{c}$ to $J/\psi$ production in $pp$ collisions at $\sqrt{s}=7$ TeV
title_full	Measurement of the ratio of prompt $\chi_{c}$ to $J/\psi$ production in $pp$ collisions at $\sqrt{s}=7$ TeV
title_fullStr	Measurement of the ratio of prompt $\chi_{c}$ to $J/\psi$ production in $pp$ collisions at $\sqrt{s}=7$ TeV
title_full_unstemmed	Measurement of the ratio of prompt $\chi_{c}$ to $J/\psi$ production in $pp$ collisions at $\sqrt{s}=7$ TeV
title_short	Measurement of the ratio of prompt $\chi_{c}$ to $J/\psi$ production in $pp$ collisions at $\sqrt{s}=7$ TeV
title_sort	measurement of the ratio of prompt $\chi_{c}$ to $j/\psi$ production in $pp$ collisions at $\sqrt{s}=7$ tev
topic	Particle Physics - Experiment
url	https://dx.doi.org/10.1016/j.physletb.2012.10.068 http://cds.cern.ch/record/1443497
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measurementoftheratioofpromptchictojpsiproductioninppcollisionsatsqrts7tev AT qianw measurementoftheratioofpromptchictojpsiproductioninppcollisionsatsqrts7tev AT rademackerjh measurementoftheratioofpromptchictojpsiproductioninppcollisionsatsqrts7tev AT rakotomiaramananab measurementoftheratioofpromptchictojpsiproductioninppcollisionsatsqrts7tev AT rangelms measurementoftheratioofpromptchictojpsiproductioninppcollisionsatsqrts7tev AT raniuki measurementoftheratioofpromptchictojpsiproductioninppcollisionsatsqrts7tev AT raveng measurementoftheratioofpromptchictojpsiproductioninppcollisionsatsqrts7tev AT redfords measurementoftheratioofpromptchictojpsiproductioninppcollisionsatsqrts7tev AT reidmm measurementoftheratioofpromptchictojpsiproductioninppcollisionsatsqrts7tev AT dosreisac measurementoftheratioofpromptchictojpsiproductioninppcollisionsatsqrts7tev AT ricciardis measurementoftheratioofpromptchictojpsiproductioninppcollisionsatsqrts7tev AT richardsa measurementoftheratioofpromptchictojpsiproductioninppcollisionsatsqrts7tev AT rinnertk measurementoftheratioofpromptchictojpsiproductioninppcollisionsatsqrts7tev AT roaromeroda measurementoftheratioofpromptchictojpsiproductioninppcollisionsatsqrts7tev AT robbep measurementoftheratioofpromptchictojpsiproductioninppcollisionsatsqrts7tev AT rodriguese measurementoftheratioofpromptchictojpsiproductioninppcollisionsatsqrts7tev AT rodriguesf measurementoftheratioofpromptchictojpsiproductioninppcollisionsatsqrts7tev AT rodriguezperezp measurementoftheratioofpromptchictojpsiproductioninppcollisionsatsqrts7tev AT rogersgj measurementoftheratioofpromptchictojpsiproductioninppcollisionsatsqrts7tev AT roisers measurementoftheratioofpromptchictojpsiproductioninppcollisionsatsqrts7tev AT romanovskyv measurementoftheratioofpromptchictojpsiproductioninppcollisionsatsqrts7tev AT rosellom measurementoftheratioofpromptchictojpsiproductioninppcollisionsatsqrts7tev AT rouvinetj measurementoftheratioofpromptchictojpsiproductioninppcollisionsatsqrts7tev AT ruft measurementoftheratioofpromptchictojpsiproductioninppcollisionsatsqrts7tev AT ruizh measurementoftheratioofpromptchictojpsiproductioninppcollisionsatsqrts7tev AT sabatinog measurementoftheratioofpromptchictojpsiproductioninppcollisionsatsqrts7tev AT saboridosilvajj measurementoftheratioofpromptchictojpsiproductioninppcollisionsatsqrts7tev AT sagidovan measurementoftheratioofpromptchictojpsiproductioninppcollisionsatsqrts7tev AT sailp measurementoftheratioofpromptchictojpsiproductioninppcollisionsatsqrts7tev AT saittab measurementoftheratioofpromptchictojpsiproductioninppcollisionsatsqrts7tev AT salzmannc measurementoftheratioofpromptchictojpsiproductioninppcollisionsatsqrts7tev AT sanninom measurementoftheratioofpromptchictojpsiproductioninppcollisionsatsqrts7tev AT santacesariar measurementoftheratioofpromptchictojpsiproductioninppcollisionsatsqrts7tev AT santamarinariosc measurementoftheratioofpromptchictojpsiproductioninppcollisionsatsqrts7tev AT santinellir measurementoftheratioofpromptchictojpsiproductioninppcollisionsatsqrts7tev AT santovettie measurementoftheratioofpromptchictojpsiproductioninppcollisionsatsqrts7tev AT sapunovm measurementoftheratioofpromptchictojpsiproductioninppcollisionsatsqrts7tev AT sartia measurementoftheratioofpromptchictojpsiproductioninppcollisionsatsqrts7tev AT satrianoc measurementoftheratioofpromptchictojpsiproductioninppcollisionsatsqrts7tev AT sattaa measurementoftheratioofpromptchictojpsiproductioninppcollisionsatsqrts7tev AT savriem measurementoftheratioofpromptchictojpsiproductioninppcollisionsatsqrts7tev AT savrinad measurementoftheratioofpromptchictojpsiproductioninppcollisionsatsqrts7tev AT schaackp measurementoftheratioofpromptchictojpsiproductioninppcollisionsatsqrts7tev AT schillerm measurementoftheratioofpromptchictojpsiproductioninppcollisionsatsqrts7tev AT schleichs measurementoftheratioofpromptchictojpsiproductioninppcollisionsatsqrts7tev AT schluppm measurementoftheratioofpromptchictojpsiproductioninppcollisionsatsqrts7tev AT schmellingm measurementoftheratioofpromptchictojpsiproductioninppcollisionsatsqrts7tev AT schmidtb measurementoftheratioofpromptchictojpsiproductioninppcollisionsatsqrts7tev AT schneidero measurementoftheratioofpromptchictojpsiproductioninppcollisionsatsqrts7tev AT schoppera measurementoftheratioofpromptchictojpsiproductioninppcollisionsatsqrts7tev AT schunemh measurementoftheratioofpromptchictojpsiproductioninppcollisionsatsqrts7tev AT schwemmerr measurementoftheratioofpromptchictojpsiproductioninppcollisionsatsqrts7tev AT sciasciab measurementoftheratioofpromptchictojpsiproductioninppcollisionsatsqrts7tev AT sciubbaa measurementoftheratioofpromptchictojpsiproductioninppcollisionsatsqrts7tev AT secom measurementoftheratioofpromptchictojpsiproductioninppcollisionsatsqrts7tev AT semennikova measurementoftheratioofpromptchictojpsiproductioninppcollisionsatsqrts7tev AT senderowskak measurementoftheratioofpromptchictojpsiproductioninppcollisionsatsqrts7tev AT seppi measurementoftheratioofpromptchictojpsiproductioninppcollisionsatsqrts7tev AT serran measurementoftheratioofpromptchictojpsiproductioninppcollisionsatsqrts7tev AT serranoj measurementoftheratioofpromptchictojpsiproductioninppcollisionsatsqrts7tev AT seyfertp measurementoftheratioofpromptchictojpsiproductioninppcollisionsatsqrts7tev AT shapkinm measurementoftheratioofpromptchictojpsiproductioninppcollisionsatsqrts7tev AT shapovali measurementoftheratioofpromptchictojpsiproductioninppcollisionsatsqrts7tev AT shatalovp measurementoftheratioofpromptchictojpsiproductioninppcollisionsatsqrts7tev AT shcheglovy measurementoftheratioofpromptchictojpsiproductioninppcollisionsatsqrts7tev AT shearst measurementoftheratioofpromptchictojpsiproductioninppcollisionsatsqrts7tev AT shekhtmanl measurementoftheratioofpromptchictojpsiproductioninppcollisionsatsqrts7tev AT shevchenkoo measurementoftheratioofpromptchictojpsiproductioninppcollisionsatsqrts7tev AT shevchenkov measurementoftheratioofpromptchictojpsiproductioninppcollisionsatsqrts7tev AT shiresa measurementoftheratioofpromptchictojpsiproductioninppcollisionsatsqrts7tev AT silvacoutinhor measurementoftheratioofpromptchictojpsiproductioninppcollisionsatsqrts7tev AT skwarnickit measurementoftheratioofpromptchictojpsiproductioninppcollisionsatsqrts7tev AT smithna measurementoftheratioofpromptchictojpsiproductioninppcollisionsatsqrts7tev AT smithe measurementoftheratioofpromptchictojpsiproductioninppcollisionsatsqrts7tev AT sobczakk measurementoftheratioofpromptchictojpsiproductioninppcollisionsatsqrts7tev AT solerfjp measurementoftheratioofpromptchictojpsiproductioninppcollisionsatsqrts7tev AT solomina measurementoftheratioofpromptchictojpsiproductioninppcollisionsatsqrts7tev AT soomrof measurementoftheratioofpromptchictojpsiproductioninppcollisionsatsqrts7tev AT souzadepaulab measurementoftheratioofpromptchictojpsiproductioninppcollisionsatsqrts7tev AT spaanb measurementoftheratioofpromptchictojpsiproductioninppcollisionsatsqrts7tev AT sparkesa measurementoftheratioofpromptchictojpsiproductioninppcollisionsatsqrts7tev AT spradlinp measurementoftheratioofpromptchictojpsiproductioninppcollisionsatsqrts7tev AT stagnif measurementoftheratioofpromptchictojpsiproductioninppcollisionsatsqrts7tev AT stahls measurementoftheratioofpromptchictojpsiproductioninppcollisionsatsqrts7tev AT steinkampo measurementoftheratioofpromptchictojpsiproductioninppcollisionsatsqrts7tev AT stoicas measurementoftheratioofpromptchictojpsiproductioninppcollisionsatsqrts7tev AT stones measurementoftheratioofpromptchictojpsiproductioninppcollisionsatsqrts7tev AT storacib measurementoftheratioofpromptchictojpsiproductioninppcollisionsatsqrts7tev AT straticiucm measurementoftheratioofpromptchictojpsiproductioninppcollisionsatsqrts7tev AT straumannu measurementoftheratioofpromptchictojpsiproductioninppcollisionsatsqrts7tev AT subbiahvk measurementoftheratioofpromptchictojpsiproductioninppcollisionsatsqrts7tev AT swienteks measurementoftheratioofpromptchictojpsiproductioninppcollisionsatsqrts7tev AT szczekowskim measurementoftheratioofpromptchictojpsiproductioninppcollisionsatsqrts7tev AT szczypkap measurementoftheratioofpromptchictojpsiproductioninppcollisionsatsqrts7tev AT szumlakt measurementoftheratioofpromptchictojpsiproductioninppcollisionsatsqrts7tev AT tjampenss measurementoftheratioofpromptchictojpsiproductioninppcollisionsatsqrts7tev AT teodorescue measurementoftheratioofpromptchictojpsiproductioninppcollisionsatsqrts7tev AT teubertf measurementoftheratioofpromptchictojpsiproductioninppcollisionsatsqrts7tev AT thomasc measurementoftheratioofpromptchictojpsiproductioninppcollisionsatsqrts7tev AT thomase measurementoftheratioofpromptchictojpsiproductioninppcollisionsatsqrts7tev AT vantilburgj measurementoftheratioofpromptchictojpsiproductioninppcollisionsatsqrts7tev AT tisserandv measurementoftheratioofpromptchictojpsiproductioninppcollisionsatsqrts7tev AT tobinm measurementoftheratioofpromptchictojpsiproductioninppcollisionsatsqrts7tev AT tolks measurementoftheratioofpromptchictojpsiproductioninppcollisionsatsqrts7tev AT toppjoergensens measurementoftheratioofpromptchictojpsiproductioninppcollisionsatsqrts7tev AT torrn measurementoftheratioofpromptchictojpsiproductioninppcollisionsatsqrts7tev AT tournefiere measurementoftheratioofpromptchictojpsiproductioninppcollisionsatsqrts7tev AT tourneurs measurementoftheratioofpromptchictojpsiproductioninppcollisionsatsqrts7tev AT tranmt measurementoftheratioofpromptchictojpsiproductioninppcollisionsatsqrts7tev AT tsaregorodtseva measurementoftheratioofpromptchictojpsiproductioninppcollisionsatsqrts7tev AT tuningn measurementoftheratioofpromptchictojpsiproductioninppcollisionsatsqrts7tev AT ubedagarciam measurementoftheratioofpromptchictojpsiproductioninppcollisionsatsqrts7tev AT uklejaa measurementoftheratioofpromptchictojpsiproductioninppcollisionsatsqrts7tev AT urquijop measurementoftheratioofpromptchictojpsiproductioninppcollisionsatsqrts7tev AT uweru measurementoftheratioofpromptchictojpsiproductioninppcollisionsatsqrts7tev AT vagnoniv measurementoftheratioofpromptchictojpsiproductioninppcollisionsatsqrts7tev AT valentig measurementoftheratioofpromptchictojpsiproductioninppcollisionsatsqrts7tev AT vazquezgomezr measurementoftheratioofpromptchictojpsiproductioninppcollisionsatsqrts7tev AT vazquezregueirop measurementoftheratioofpromptchictojpsiproductioninppcollisionsatsqrts7tev AT vecchis measurementoftheratioofpromptchictojpsiproductioninppcollisionsatsqrts7tev AT velthuisjj measurementoftheratioofpromptchictojpsiproductioninppcollisionsatsqrts7tev AT veltrim measurementoftheratioofpromptchictojpsiproductioninppcollisionsatsqrts7tev AT viaudb measurementoftheratioofpromptchictojpsiproductioninppcollisionsatsqrts7tev AT videaui measurementoftheratioofpromptchictojpsiproductioninppcollisionsatsqrts7tev AT vieirad measurementoftheratioofpromptchictojpsiproductioninppcollisionsatsqrts7tev AT vilasiscardonax measurementoftheratioofpromptchictojpsiproductioninppcollisionsatsqrts7tev AT visniakovj measurementoftheratioofpromptchictojpsiproductioninppcollisionsatsqrts7tev AT vollhardta measurementoftheratioofpromptchictojpsiproductioninppcollisionsatsqrts7tev AT volyanskyyd measurementoftheratioofpromptchictojpsiproductioninppcollisionsatsqrts7tev AT voongd measurementoftheratioofpromptchictojpsiproductioninppcollisionsatsqrts7tev AT vorobyeva measurementoftheratioofpromptchictojpsiproductioninppcollisionsatsqrts7tev AT vorobyevv measurementoftheratioofpromptchictojpsiproductioninppcollisionsatsqrts7tev AT vossh measurementoftheratioofpromptchictojpsiproductioninppcollisionsatsqrts7tev AT waldir measurementoftheratioofpromptchictojpsiproductioninppcollisionsatsqrts7tev AT wandernoths measurementoftheratioofpromptchictojpsiproductioninppcollisionsatsqrts7tev AT wangj measurementoftheratioofpromptchictojpsiproductioninppcollisionsatsqrts7tev AT warddr measurementoftheratioofpromptchictojpsiproductioninppcollisionsatsqrts7tev AT watsonnk measurementoftheratioofpromptchictojpsiproductioninppcollisionsatsqrts7tev AT webberad measurementoftheratioofpromptchictojpsiproductioninppcollisionsatsqrts7tev AT websdaled measurementoftheratioofpromptchictojpsiproductioninppcollisionsatsqrts7tev AT whiteheadm measurementoftheratioofpromptchictojpsiproductioninppcollisionsatsqrts7tev AT wiednerd measurementoftheratioofpromptchictojpsiproductioninppcollisionsatsqrts7tev AT wiggersl measurementoftheratioofpromptchictojpsiproductioninppcollisionsatsqrts7tev AT wilkinsong measurementoftheratioofpromptchictojpsiproductioninppcollisionsatsqrts7tev AT williamsmp measurementoftheratioofpromptchictojpsiproductioninppcollisionsatsqrts7tev AT williamsm measurementoftheratioofpromptchictojpsiproductioninppcollisionsatsqrts7tev AT wilsonff measurementoftheratioofpromptchictojpsiproductioninppcollisionsatsqrts7tev AT wishahij measurementoftheratioofpromptchictojpsiproductioninppcollisionsatsqrts7tev AT witekm measurementoftheratioofpromptchictojpsiproductioninppcollisionsatsqrts7tev AT witzelingw measurementoftheratioofpromptchictojpsiproductioninppcollisionsatsqrts7tev AT wottonsa measurementoftheratioofpromptchictojpsiproductioninppcollisionsatsqrts7tev AT wylliek measurementoftheratioofpromptchictojpsiproductioninppcollisionsatsqrts7tev AT xiey measurementoftheratioofpromptchictojpsiproductioninppcollisionsatsqrts7tev AT xingf measurementoftheratioofpromptchictojpsiproductioninppcollisionsatsqrts7tev AT xingz measurementoftheratioofpromptchictojpsiproductioninppcollisionsatsqrts7tev AT yangz measurementoftheratioofpromptchictojpsiproductioninppcollisionsatsqrts7tev AT youngr measurementoftheratioofpromptchictojpsiproductioninppcollisionsatsqrts7tev AT yushchenkoo measurementoftheratioofpromptchictojpsiproductioninppcollisionsatsqrts7tev AT zangolim measurementoftheratioofpromptchictojpsiproductioninppcollisionsatsqrts7tev AT zavertyaevm measurementoftheratioofpromptchictojpsiproductioninppcollisionsatsqrts7tev AT zhangf measurementoftheratioofpromptchictojpsiproductioninppcollisionsatsqrts7tev AT zhangl measurementoftheratioofpromptchictojpsiproductioninppcollisionsatsqrts7tev AT zhangwc measurementoftheratioofpromptchictojpsiproductioninppcollisionsatsqrts7tev AT zhangy measurementoftheratioofpromptchictojpsiproductioninppcollisionsatsqrts7tev AT zhelezova measurementoftheratioofpromptchictojpsiproductioninppcollisionsatsqrts7tev AT zhongl measurementoftheratioofpromptchictojpsiproductioninppcollisionsatsqrts7tev AT zvyagina measurementoftheratioofpromptchictojpsiproductioninppcollisionsatsqrts7tev

Measurement of the ratio of prompt $\chi_{c}$ to $J/\psi$ production in $pp$ collisions at $\sqrt{s}=7$ TeV

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