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Coherent J/$\Psi$ photoproduction in ultra-peripheral Pb-Pb collisions at $\sqrt{s_{NN}}$ =2.76 TeV

The ALICE collaboration has made the first measurement at the LHC of J/$\Psi$ photoproduction in ultra-peripheral Pb-Pb-collisions at $\sqrt{s_{NN}}$ = 2.76 TeV. The J/$\Psi$ is identified via its dimuon decay in the forward rapidity region with the muon spectrometer for events where the hadronic ac...

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Autores principales: Abelev, Betty, Adam, Jaroslav, Adamova, Dagmar, Adare, Andrew Marshall, Aggarwal, Madan, Aglieri Rinella, Gianluca, Agnello, Michelangelo, Agocs, Andras Gabor, Agostinelli, Andrea, Aguilar Salazar, Saul, Ahammed, Zubayer, Ahmad, Arshad, Ahmad, Nazeer, Ahn, Sul-Ah, Ahn, Sang Un, Akindinov, Alexander, Aleksandrov, Dmitry, Alessandro, Bruno, Alfaro Molina, Jose Ruben, Alici, Andrea, Alkin, Anton, Almaraz Avina, Erick Jonathan, Alme, Johan, Alt, Torsten, Altini, Valerio, Altinpinar, Sedat, Altsybeev, Igor, Andrei, Cristian, Andronic, Anton, Anguelov, Venelin, Anielski, Jonas, Anson, Christopher Daniel, Anticic, Tome, Antinori, Federico, Antonioli, Pietro, Aphecetche, Laurent Bernard, Appelshauser, Harald, Arbor, Nicolas, Arcelli, Silvia, Arend, Andreas, Armesto, Nestor, Arnaldi, Roberta, Aronsson, Tomas Robert, Arsene, Ionut Cristian, Arslandok, Mesut, Asryan, Andzhey, Augustinus, Andre, Averbeck, Ralf Peter, Awes, Terry, Aysto, Juha Heikki, Azmi, Mohd Danish, Bach, Matthias Jakob, Badala, Angela, Baek, Yong Wook, Bailhache, Raphaelle Marie, Bala, Renu, Baldini Ferroli, Rinaldo, Baldisseri, Alberto, Baltasar Dos Santos Pedrosa, Fernando, Ban, Jaroslav, Baral, Rama Chandra, Barbera, Roberto, Barile, Francesco, Barnafoldi, Gergely Gabor, Barnby, Lee Stuart, Barret, Valerie, Bartke, Jerzy Gustaw, Basile, Maurizio, Bastid, Nicole, Basu, Sumit, Bathen, Bastian, Batigne, Guillaume, Batyunya, Boris, Baumann, Christoph Heinrich, Bearden, Ian Gardner, Beck, Hans, Behera, Nirbhay Kumar, Belikov, Iouri, Bellini, Francesca, Bellwied, Rene, Belmont-Moreno, Ernesto, Bencedi, Gyula, Beole, Stefania, Berceanu, Ionela, Bercuci, Alexandru, Berdnikov, Yaroslav, Berenyi, Daniel, Bergognon, Anais Annick Erica, Berzano, Dario, Betev, Latchezar, Bhasin, Anju, Bhati, Ashok Kumar, Bhom, Jihyun, Bianchi, Nicola, Bianchi, Livio, Bianchin, Chiara, Bielcik, Jaroslav, Bielcikova, Jana, Bilandzic, Ante, Bjelogrlic, Sandro, Blanco, Francescorancesco, Blanco, F, Blau, Dmitry, 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Khan, Shuaib Ahmad, Khan, Palash, Khan, Mohisin Mohammed, Khanzadeev, Alexei, Kharlov, Yury, Kileng, Bjarte, Kim, Minwoo, Kim, Se Yong, Kim, Dong Jo, Kim, Do Won, Kim, Jonghyun, Kim, Jin Sook, Kim, Taesoo, Kim, Mimae, Kim, Beomkyu, Kirsch, Stefan, Kisel, Ivan, Kiselev, Sergey, Kisiel, Adam Ryszard, Klay, Jennifer Lynn, Klein, Jochen, Klein-Bosing, Christian, Kliemant, Michael, Kluge, Alexander, Knichel, Michael Linus, Knospe, Anders Garritt, Koch, Kathrin, Kohler, Markus, Kollegger, Thorsten, Kolojvari, Anatoly, Kondratiev, Valery, Kondratyeva, Natalia, Konevskih, Artem, Kour, Ravjeet, Kowalski, Marek, Kox, Serge, Koyithatta Meethaleveedu, Greeshma, Kral, Jiri, Kralik, Ivan, Kramer, Frederick, Kravcakova, Adela, Krawutschke, Tobias, Krelina, Michal, Kretz, Matthias, Krivda, Marian, Krizek, Filip, Krus, Miroslav, Kryshen, Evgeny, Krzewicki, Mikolaj, Kucheriaev, Yury, Kugathasan, Thanushan, Kuhn, Christian Claude, Kuijer, Paul, Kulakov, Igor, Kumar, Jitendra, Kurashvili, Podist, Kurepin, AB, Kurepin, A, Kuryakin, Alexey, Kushpil, Svetlana, Kushpil, Vasily, Kvaerno, Henning, Kweon, Min Jung, Kwon, Youngil, Ladron de Guevara, Pedro, Lakomov, Igor, Langoy, Rune, La Pointe, Sarah Louise, Lara, Camilo Ernesto, Lardeux, Antoine Xavier, La Rocca, Paola, Lea, Ramona, Lechman, Mateusz, Lee, Ki Sang, Lee, Graham Richard, Lee, Sung Chul, Lehnert, Joerg Walter, Lenhardt, Matthieu Laurent, Lenti, Vito, Leoncino, Marco, Leon Monzon, Ildefonso, Leon Vargas, Hermes, Levai, Peter, Lien, Jorgen, Lietava, Roman, Lindal, Svein, Lindenstruth, Volker, Lippmann, Christian, Lisa, Michael Annan, Ljunggren, Hans Martin, Loenne, Per-Ivar, Loggins, Vera, Loginov, Vitaly, Lohn, Stefan Bernhard, Lohner, Daniel, Loizides, Constantinos, Loo, Kai Krister, Lopez, Xavier Bernard, Lopez Torres, Ernesto, Lovhoiden, Gunnar, Lu, Xianguo, Luettig, Philipp, Lunardon, Marcello, Luo, Jiebin, Luparello, Grazia, Luzzi, Cinzia, Ma, Ke, Ma, Rongrong, Madagodahettige-Don, Dilan Minthaka, Maevskaya, Alla, Mager, Magnus, Mahapatra, Durga Prasad, Maire, Antonin, Malaev, Mikhail, Maldonado Cervantes, Ivonne Alicia, Malinina, Ludmila, Mal'Kevich, Dmitry, Malzacher, Peter, Mamonov, Alexander, Manceau, Loic Henri Antoine, Mangotra, Lalit Kumar, Manko, Vladislav, Manso, Franck, Manzari, Vito, Mao, Yaxian, Marchisone, Massimiliano, Mares, Jiri, Margagliotti, Giacomo Vito, Margotti, Anselmo, Marin, Ana Maria, Marin Tobon, Cesar Augusto, Markert, Christina, Marquard, Marco, Martashvili, Irakli, Martin, Nicole Alice, Martinengo, Paolo, Martinez, Mario Ivan, Martinez Davalos, Arnulfo, Martinez Garcia, Gines, Martynov, Yevgen, Mas, Alexis Jean-Michel, Masciocchi, Silvia, Masera, Massimo, Masoni, Alberto, Massacrier, Laure Marie, Mastroserio, Annalisa, Matthews, Zoe Louise, Matyja, Adam Tomasz, Mayer, Christoph, Mazer, Joel, Mazzoni, Alessandra Maria, Meddi, Franco, Menchaca-Rocha, Arturo Alejandro, Mercado Perez, Jorge, Meres, Michal, Miake, Yasuo, Milano, Leonardo, Milosevic, Jovan, Mischke, Andre, Mishra, Aditya Nath, Miskowiec, Dariusz, Mitu, Ciprian Mihai, Mizuno, Sanshiro, Mlynarz, Jocelyn, Mohanty, Bedangadas, Molnar, Levente, Montano Zetina, Luis Manuel, Monteno, Marco, Montes, Esther, Moon, Taebong, Morando, Maurizio, Moreira De Godoy, Denise Aparecida, Moretto, Sandra, Morsch, Andreas, Muccifora, Valeria, Mudnic, Eugen, Muhuri, Sanjib, Mukherjee, Maitreyee, Muller, Hans, Munhoz, Marcelo, Musa, Luciano, Musso, Alfredo, Nandi, Basanta Kumar, Nania, Rosario, Nappi, Eugenio, Nattrass, Christine, Navin, Sparsh, Nayak, Tapan Kumar, Nazarenko, Sergey, Nedosekin, Alexander, Nicassio, Maria, Niculescu, Mihai, Nielsen, Borge Svane, Niida, Takafumi, Nikolaev, Sergey, Nikolic, Vedran, Nikulin, Vladimir, Nikulin, Sergey, Nilsen, Bjorn Steven, Nilsson, Mads Stormo, Noferini, Francesco, Nomokonov, Petr, Nooren, Gerardus, Novitzky, Norbert, Nyanin, Alexandre, Nyatha, Anitha, Nygaard, Casper, Nystrand, Joakim Ingemar, Ochirov, Alexander, Oeschler, Helmut Oskar, Oh, Sun Kun, Oh, Saehanseul, Oleniacz, Janusz, Oliveira Da Silva, Antonio Carlos, Oppedisano, Chiara, Ortiz Velasquez, Antonio, Oskarsson, Anders Nils Erik, Ostrowski, Piotr Krystian, Otwinowski, Jacek Tomasz, Oyama, Ken, Ozawa, Kyoichiro, Pachmayer, Yvonne Chiara, Pachr, Milos, Padilla, Fatima, Pagano, Paola, Paic, Guy, Painke, Florian, Pajares, Carlos, Pal, Susanta Kumar, Palaha, Arvinder Singh, Palmeri, Armando, Papikyan, Vardanush, Pappalardo, Giuseppe, Park, Woo Jin, Passfeld, Annika, Pastircak, Blahoslav, Patalakha, Dmitri Ivanovich, Paticchio, Vincenzo, Pavlinov, Alexei, Pawlak, Tomasz Jan, Peitzmann, Thomas, Pereira Da Costa, Hugo Denis Antonio, Pereira De Oliveira Filho, Elienos, Peresunko, Dmitri, Perez Lara, Carlos Eugenio, Perez Lezama, Edgar, Perini, Diego, Perrino, Davide, Peryt, Wiktor Stanislaw, Pesci, Alessandro, Peskov, Vladimir, Pestov, Yury, Petracek, Vojtech, Petran, Michal, Petris, Mariana, Petrov, Plamen Rumenov, Petrovici, Mihai, Petta, Catia, Piano, Stefano, Piccotti, Anna, 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Lenguaje:eng
Publicado: 2012
Materias:
Acceso en línea:https://dx.doi.org/10.1016/j.physletb.2012.11.059
http://cds.cern.ch/record/1476722
Descripción
Sumario:The ALICE collaboration has made the first measurement at the LHC of J/$\Psi$ photoproduction in ultra-peripheral Pb-Pb-collisions at $\sqrt{s_{NN}}$ = 2.76 TeV. The J/$\Psi$ is identified via its dimuon decay in the forward rapidity region with the muon spectrometer for events where the hadronic activity is required to be minimal. The analysis is based on an event sample corresponding to an integrated luminosity of about 55 mub-1. The cross section for coherent J/$\Psi$ production in the rapidity interval -3.6 < y < -2.6 is measured to be $d\sigma^{coh}_{J/\Psi}/dy = 1.00 \pm 0.18 (stat) ^{+0.24}_{-0.26}$ (syst) mb. The result is compared to theoretical models for coherent J/$\Psi$ production and found to be in good agreement with models which include nuclear gluon shadowing.