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Measurement of $\Lambda_{b}$ polarization in Z decays

The \Lambda_{\mathrm{b}} polarization in hadronic \mathrm{Z} decays is measured in semileptonic decays from the average energies of the charged lepton and the neutrino. In a data sample of approximately 3 million hadronic \mathrm{Z} decays collected by the ALEPH detector at LEP between 1991 and 1994...

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Detalles Bibliográficos
Autores principales:	Buskulic, Damir, Casper, David William, De Bonis, I, Décamp, D, Ghez, P, Goy, C, Lees, J P, Lucotte, A, Minard, M N, Odier, P, Pietrzyk, B, Chmeissani, M, Crespo, J M, Efthymiopoulos, I, Fernández, E, Fernández-Bosman, M, Garrido, L, Juste, A, Martínez, M, Orteu, S, Pacheco, A, Padilla, C, Palla, Fabrizio, Pascual, A, Perlas, J A, Riu, I, Sánchez, F, Teubert, F, Colaleo, A, Creanza, D, De Palma, M, Farilla, A, Gelao, G, Girone, M, Iaselli, Giuseppe, Maggi, G, Maggi, M, Marinelli, N, Natali, S, Nuzzo, S, Ranieri, A, Raso, G, Romano, F, Ruggieri, F, Selvaggi, G, Silvestris, L, Tempesta, P, Zito, G, Huang, X, Lin, J, Ouyang, Q, Wang, T, Xie, Y, Xu, R, Xue, S, Zhang, J, Zhang, L, Zhao, W, Alemany, R, Bazarko, A O, Bonvicini, G, Cattaneo, M, Comas, P, Coyle, P, Drevermann, H, Forty, Roger W, Frank, M, Hagelberg, R, Harvey, J, Jacobsen, R, Janot, P, Jost, B, Kneringer, E, Knobloch, J, Lehraus, Ivan, Martin, E B, Mato, P, Minten, Adolf G, Miquel, R, Mir, L M, Moneta, L, Oest, T, Palazzi, P, Pater, J R, Pusztaszeri, J F, Ranjard, F, Rensing, P E, Rolandi, Luigi, Schlatter, W D, Schmelling, M, Schneider, O, Tejessy, W, Tomalin, I R, Venturi, A, Wachsmuth, H W, Wildish, T, Witzeling, W, Wotschack, J, Ajaltouni, Ziad J, Bardadin-Otwinowska, Maria, Barrès, A, Boyer, C, Falvard, A, Gay, P, Guicheney, C, Henrard, P, Jousset, J, Michel, B, Monteil, S, Montret, J C, Pallin, D, Perret, P, Podlyski, F, Proriol, J, Rossignol, J M, Saadi, F, Fearnley, Tom, Hansen, J B, Hansen, J D, Hansen, J R, Hansen, P H, Nilsson, B S, Kyriakis, A, Markou, C, Simopoulou, Errietta, Siotis, I, Vayaki, Anna, Zachariadou, K, Blondel, A, Bonneaud, G R, Brient, J C, Bourdon, P, Rougé, A, Rumpf, M, Tanaka, R, Valassi, Andrea, Verderi, M, Videau, H L, Candlin, D J, Parsons, M I, Focardi, E, Parrini, G, Corden, M, Delfino, M C, Georgiopoulos, C H, Jaffe, D E, Antonelli, A, Bencivenni, G, Bologna, G, Bossi, F, Campana, P, Capon, G, Chiarella, V, Felici, G, Laurelli, P, Mannocchi, G, Murtas, F, Murtas, G P, Passalacqua, L, Pepé-Altarelli, M, Curtis, L, Dorris, S J, Halley, A W, Knowles, I G, Lynch, J G, O'Shea, V, Raine, C, Reeves, P, Scarr, J M, Smith, K, Thompson, A S, Thomson, F, Thorn, S, Turnbull, R M, Becker, U, Braun, O, Geweniger, C, Graefe, G, Hanke, P, Hepp, V, Kluge, E E, Putzer, A, Rensch, B, Schmidt, M, Sommer, J, Stenzel, H, Tittel, K, Werner, S, Wunsch, M, Abbaneo, D, Beuselinck, R, Binnie, David M, Cameron, W, Colling, D J, Dornan, Peter J, Konstantinidis, N P, Moutoussi, A, Nash, J, San Martin, G, Sedgbeer, J K, Stacey, A M, Dissertori, G, Girtler, P, Kuhn, D, Rudolph, G, Bowdery, C K, Brodbeck, T J, Colrain, P, Crawford, G, Finch, A J, Foster, F, Hughes, G, Sloan, Terence, Whelan, E P, Williams, M I, Galla, A, Greene, A M, Kleinknecht, K, Quast, G, Raab, J, Renk, B, Sander, H G, Wanke, R, Van Gemmeren, P, Zeitnitz, C, Aubert, Jean-Jacques, Bencheikh, A M, Benchouk, C, Bonissent, A, Bujosa, G, Calvet, D, Carr, J, Diaconu, C A, Etienne, F, Thulasidas, M, Nicod, D, Payre, P, Rousseau, D, Talby, M, Abt, I, Assmann, R W, Bauer, C, Blum, Walter, Brown, D, Dietl, H, Dydak, Friedrich, Ganis, G, Gotzhein, C, Jakobs, K, Kroha, H, Lütjens, G, Lutz, Gerhard, Männer, W, Moser, H G, Richter, R H, Rosado-Schlosser, A, Schael, S, Settles, Ronald, Seywerd, H C J, Saint-Denis, R, Wiedenmann, W, Wolf, G, Boucrot, J, Callot, O, Cordier, A, Courault, F, Davier, M, Duflot, L, Grivaz, J F, Heusse, P, Jacquet, M, Kim, D W, Le Diberder, F R, Lefrançois, J, Lutz, A M, Nikolic, I A, Park, H J, Park, I C, Schune, M H, Simion, S, Veillet, J J, Videau, I, Azzurri, P, Bagliesi, G, Batignani, G, Bettarini, S, Bozzi, C, Calderini, G, Carpinelli, M, Ciocci, M A, Ciulli, V, Dell'Orso, R, Fantechi, R, Ferrante, I, Foà, L, Forti, F, Giassi, A, Giorgi, M A, Gregorio, A, Ligabue, F, Lusiani, A, Marrocchesi, P S, Messineo, A, Rizzo, G, Sanguinetti, G, Sciabà, A, Spagnolo, P, Steinberger, Jack, Tenchini, Roberto, Tonelli, G, Vannini, C, Verdini, P G, Walsh, J, Betteridge, A P, Blair, G A, Bryant, L M, Cerutti, F, Chambers, J T, Gao, Y, Green, M G, Johnson, D L, Medcalf, T, Perrodo, P, Strong, J A, Von Wimmersperg-Töller, J H, Botterill, David R, Clifft, R W, Edgecock, T R, Haywood, S, Edwards, M, Maley, P, Norton, P R, Thompson, J C, Bloch-Devaux, B, Colas, P, Emery, S, Kozanecki, Witold, Lançon, E, Lemaire, M C, Locci, E, Marx, B, Pérez, P, Rander, J, Renardy, J F, Roussarie, A, Schuller, J P, Schwindling, J, Trabelsi, A, Vallage, B, Johnson, R P, Kim, H Y, Litke, A M, McNeil, M A, Taylor, G, Beddall, A, Booth, C N, Boswell, R, Brew, C A J, Cartwright, S L, Combley, F, Köksal, A, Letho, M, Newton, W M, Rankin, C, Reeve, J, Thompson, L F, Böhrer, A, Brandt, S, Cowan, G D, Feigl, E, Grupen, Claus, Lutters, G, Minguet-Rodríguez, J A, Rivera, F, Saraiva, P, Smolik, L, Stephan, F, Apollonio, M, Bosisio, L, Della Marina, R, Giannini, G, Gobbo, B, Musolino, G, Ragusa, F, Rothberg, J E, Wasserbaech, S R, Armstrong, S R, Bellantoni, L, Elmer, P, Feng, Z, Ferguson, D P S, Gao, Y S, González, S, Grahl, J, Greening, T C, Harton, J L, Hayes, O J, Hu, H, McNamara, P A, Nachtman, J M, Orejudos, W, Pan, Y B, Saadi, Y, Schmitt, M, Scott, I J, Sharma, V, Turk, J, Walsh, A M, Wu Sau Lan, Wu, X, Yamartino, J M, Zheng, M, Zobernig, G
Lenguaje:	eng
Publicado:	1995
Materias:	Particle Physics - Experiment
Acceso en línea:	https://dx.doi.org/10.1016/0370-2693(95)01433-0 http://cds.cern.ch/record/291081

_version_	1780888636767600640
author	Buskulic, Damir Casper, David William De Bonis, I Décamp, D Ghez, P Goy, C Lees, J P Lucotte, A Minard, M N Odier, P Pietrzyk, B Chmeissani, M Crespo, J M Efthymiopoulos, I Fernández, E Fernández-Bosman, M Garrido, L Juste, A Martínez, M Orteu, S Pacheco, A Padilla, C Palla, Fabrizio Pascual, A Perlas, J A Riu, I Sánchez, F Teubert, F Colaleo, A Creanza, D De Palma, M Farilla, A Gelao, G Girone, M Iaselli, Giuseppe Maggi, G Maggi, M Marinelli, N Natali, S Nuzzo, S Ranieri, A Raso, G Romano, F Ruggieri, F Selvaggi, G Silvestris, L Tempesta, P Zito, G Huang, X Lin, J Ouyang, Q Wang, T Xie, Y Xu, R Xue, S Zhang, J Zhang, L Zhao, W Alemany, R Bazarko, A O Bonvicini, G Cattaneo, M Comas, P Coyle, P Drevermann, H Forty, Roger W Frank, M Hagelberg, R Harvey, J Jacobsen, R Janot, P Jost, B Kneringer, E Knobloch, J Lehraus, Ivan Martin, E B Mato, P Minten, Adolf G Miquel, R Mir, L M Moneta, L Oest, T Palazzi, P Pater, J R Pusztaszeri, J F Ranjard, F Rensing, P E Rolandi, Luigi Schlatter, W D Schmelling, M Schneider, O Tejessy, W Tomalin, I R Venturi, A Wachsmuth, H W Wildish, T Witzeling, W Wotschack, J Ajaltouni, Ziad J Bardadin-Otwinowska, Maria Barrès, A Boyer, C Falvard, A Gay, P Guicheney, C Henrard, P Jousset, J Michel, B Monteil, S Montret, J C Pallin, D Perret, P Podlyski, F Proriol, J Rossignol, J M Saadi, F Fearnley, Tom Hansen, J B Hansen, J D Hansen, J R Hansen, P H Nilsson, B S Kyriakis, A Markou, C Simopoulou, Errietta Siotis, I Vayaki, Anna Zachariadou, K Blondel, A Bonneaud, G R Brient, J C Bourdon, P Rougé, A Rumpf, M Tanaka, R Valassi, Andrea Verderi, M Videau, H L Candlin, D J Parsons, M I Focardi, E Parrini, G Corden, M Delfino, M C Georgiopoulos, C H Jaffe, D E Antonelli, A Bencivenni, G Bologna, G Bossi, F Campana, P Capon, G Chiarella, V Felici, G Laurelli, P Mannocchi, G Murtas, F Murtas, G P Passalacqua, L Pepé-Altarelli, M Curtis, L Dorris, S J Halley, A W Knowles, I G Lynch, J G O'Shea, V Raine, C Reeves, P Scarr, J M Smith, K Thompson, A S Thomson, F Thorn, S Turnbull, R M Becker, U Braun, O Geweniger, C Graefe, G Hanke, P Hepp, V Kluge, E E Putzer, A Rensch, B Schmidt, M Sommer, J Stenzel, H Tittel, K Werner, S Wunsch, M Abbaneo, D Beuselinck, R Binnie, David M Cameron, W Colling, D J Dornan, Peter J Konstantinidis, N P Moutoussi, A Nash, J San Martin, G Sedgbeer, J K Stacey, A M Dissertori, G Girtler, P Kuhn, D Rudolph, G Bowdery, C K Brodbeck, T J Colrain, P Crawford, G Finch, A J Foster, F Hughes, G Sloan, Terence Whelan, E P Williams, M I Galla, A Greene, A M Kleinknecht, K Quast, G Raab, J Renk, B Sander, H G Wanke, R Van Gemmeren, P Zeitnitz, C Aubert, Jean-Jacques Bencheikh, A M Benchouk, C Bonissent, A Bujosa, G Calvet, D Carr, J Diaconu, C A Etienne, F Thulasidas, M Nicod, D Payre, P Rousseau, D Talby, M Abt, I Assmann, R W Bauer, C Blum, Walter Brown, D Dietl, H Dydak, Friedrich Ganis, G Gotzhein, C Jakobs, K Kroha, H Lütjens, G Lutz, Gerhard Männer, W Moser, H G Richter, R H Rosado-Schlosser, A Schael, S Settles, Ronald Seywerd, H C J Saint-Denis, R Wiedenmann, W Wolf, G Boucrot, J Callot, O Cordier, A Courault, F Davier, M Duflot, L Grivaz, J F Heusse, P Jacquet, M Kim, D W Le Diberder, F R Lefrançois, J Lutz, A M Nikolic, I A Park, H J Park, I C Schune, M H Simion, S Veillet, J J Videau, I Azzurri, P Bagliesi, G Batignani, G Bettarini, S Bozzi, C Calderini, G Carpinelli, M Ciocci, M A Ciulli, V Dell'Orso, R Fantechi, R Ferrante, I Foà, L Forti, F Giassi, A Giorgi, M A Gregorio, A Ligabue, F Lusiani, A Marrocchesi, P S Messineo, A Rizzo, G Sanguinetti, G Sciabà, A Spagnolo, P Steinberger, Jack Tenchini, Roberto Tonelli, G Vannini, C Verdini, P G Walsh, J Betteridge, A P Blair, G A Bryant, L M Cerutti, F Chambers, J T Gao, Y Green, M G Johnson, D L Medcalf, T Perrodo, P Strong, J A Von Wimmersperg-Töller, J H Botterill, David R Clifft, R W Edgecock, T R Haywood, S Edwards, M Maley, P Norton, P R Thompson, J C Bloch-Devaux, B Colas, P Emery, S Kozanecki, Witold Lançon, E Lemaire, M C Locci, E Marx, B Pérez, P Rander, J Renardy, J F Roussarie, A Schuller, J P Schwindling, J Trabelsi, A Vallage, B Johnson, R P Kim, H Y Litke, A M McNeil, M A Taylor, G Beddall, A Booth, C N Boswell, R Brew, C A J Cartwright, S L Combley, F Köksal, A Letho, M Newton, W M Rankin, C Reeve, J Thompson, L F Böhrer, A Brandt, S Cowan, G D Feigl, E Grupen, Claus Lutters, G Minguet-Rodríguez, J A Rivera, F Saraiva, P Smolik, L Stephan, F Apollonio, M Bosisio, L Della Marina, R Giannini, G Gobbo, B Musolino, G Ragusa, F Rothberg, J E Wasserbaech, S R Armstrong, S R Bellantoni, L Elmer, P Feng, Z Ferguson, D P S Gao, Y S González, S Grahl, J Greening, T C Harton, J L Hayes, O J Hu, H McNamara, P A Nachtman, J M Orejudos, W Pan, Y B Saadi, Y Schmitt, M Scott, I J Sharma, V Turk, J Walsh, A M Wu Sau Lan Wu, X Yamartino, J M Zheng, M Zobernig, G
author_facet	Buskulic, Damir Casper, David William De Bonis, I Décamp, D Ghez, P Goy, C Lees, J P Lucotte, A Minard, M N Odier, P Pietrzyk, B Chmeissani, M Crespo, J M Efthymiopoulos, I Fernández, E Fernández-Bosman, M Garrido, L Juste, A Martínez, M Orteu, S Pacheco, A Padilla, C Palla, Fabrizio Pascual, A Perlas, J A Riu, I Sánchez, F Teubert, F Colaleo, A Creanza, D De Palma, M Farilla, A Gelao, G Girone, M Iaselli, Giuseppe Maggi, G Maggi, M Marinelli, N Natali, S Nuzzo, S Ranieri, A Raso, G Romano, F Ruggieri, F Selvaggi, G Silvestris, L Tempesta, P Zito, G Huang, X Lin, J Ouyang, Q Wang, T Xie, Y Xu, R Xue, S Zhang, J Zhang, L Zhao, W Alemany, R Bazarko, A O Bonvicini, G Cattaneo, M Comas, P Coyle, P Drevermann, H Forty, Roger W Frank, M Hagelberg, R Harvey, J Jacobsen, R Janot, P Jost, B Kneringer, E Knobloch, J Lehraus, Ivan Martin, E B Mato, P Minten, Adolf G Miquel, R Mir, L M Moneta, L Oest, T Palazzi, P Pater, J R Pusztaszeri, J F Ranjard, F Rensing, P E Rolandi, Luigi Schlatter, W D Schmelling, M Schneider, O Tejessy, W Tomalin, I R Venturi, A Wachsmuth, H W Wildish, T Witzeling, W Wotschack, J Ajaltouni, Ziad J Bardadin-Otwinowska, Maria Barrès, A Boyer, C Falvard, A Gay, P Guicheney, C Henrard, P Jousset, J Michel, B Monteil, S Montret, J C Pallin, D Perret, P Podlyski, F Proriol, J Rossignol, J M Saadi, F Fearnley, Tom Hansen, J B Hansen, J D Hansen, J R Hansen, P H Nilsson, B S Kyriakis, A Markou, C Simopoulou, Errietta Siotis, I Vayaki, Anna Zachariadou, K Blondel, A Bonneaud, G R Brient, J C Bourdon, P Rougé, A Rumpf, M Tanaka, R Valassi, Andrea Verderi, M Videau, H L Candlin, D J Parsons, M I Focardi, E Parrini, G Corden, M Delfino, M C Georgiopoulos, C H Jaffe, D E Antonelli, A Bencivenni, G Bologna, G Bossi, F Campana, P Capon, G Chiarella, V Felici, G Laurelli, P Mannocchi, G Murtas, F Murtas, G P Passalacqua, L Pepé-Altarelli, M Curtis, L Dorris, S J Halley, A W Knowles, I G Lynch, J G O'Shea, V Raine, C Reeves, P Scarr, J M Smith, K Thompson, A S Thomson, F Thorn, S Turnbull, R M Becker, U Braun, O Geweniger, C Graefe, G Hanke, P Hepp, V Kluge, E E Putzer, A Rensch, B Schmidt, M Sommer, J Stenzel, H Tittel, K Werner, S Wunsch, M Abbaneo, D Beuselinck, R Binnie, David M Cameron, W Colling, D J Dornan, Peter J Konstantinidis, N P Moutoussi, A Nash, J San Martin, G Sedgbeer, J K Stacey, A M Dissertori, G Girtler, P Kuhn, D Rudolph, G Bowdery, C K Brodbeck, T J Colrain, P Crawford, G Finch, A J Foster, F Hughes, G Sloan, Terence Whelan, E P Williams, M I Galla, A Greene, A M Kleinknecht, K Quast, G Raab, J Renk, B Sander, H G Wanke, R Van Gemmeren, P Zeitnitz, C Aubert, Jean-Jacques Bencheikh, A M Benchouk, C Bonissent, A Bujosa, G Calvet, D Carr, J Diaconu, C A Etienne, F Thulasidas, M Nicod, D Payre, P Rousseau, D Talby, M Abt, I Assmann, R W Bauer, C Blum, Walter Brown, D Dietl, H Dydak, Friedrich Ganis, G Gotzhein, C Jakobs, K Kroha, H Lütjens, G Lutz, Gerhard Männer, W Moser, H G Richter, R H Rosado-Schlosser, A Schael, S Settles, Ronald Seywerd, H C J Saint-Denis, R Wiedenmann, W Wolf, G Boucrot, J Callot, O Cordier, A Courault, F Davier, M Duflot, L Grivaz, J F Heusse, P Jacquet, M Kim, D W Le Diberder, F R Lefrançois, J Lutz, A M Nikolic, I A Park, H J Park, I C Schune, M H Simion, S Veillet, J J Videau, I Azzurri, P Bagliesi, G Batignani, G Bettarini, S Bozzi, C Calderini, G Carpinelli, M Ciocci, M A Ciulli, V Dell'Orso, R Fantechi, R Ferrante, I Foà, L Forti, F Giassi, A Giorgi, M A Gregorio, A Ligabue, F Lusiani, A Marrocchesi, P S Messineo, A Rizzo, G Sanguinetti, G Sciabà, A Spagnolo, P Steinberger, Jack Tenchini, Roberto Tonelli, G Vannini, C Verdini, P G Walsh, J Betteridge, A P Blair, G A Bryant, L M Cerutti, F Chambers, J T Gao, Y Green, M G Johnson, D L Medcalf, T Perrodo, P Strong, J A Von Wimmersperg-Töller, J H Botterill, David R Clifft, R W Edgecock, T R Haywood, S Edwards, M Maley, P Norton, P R Thompson, J C Bloch-Devaux, B Colas, P Emery, S Kozanecki, Witold Lançon, E Lemaire, M C Locci, E Marx, B Pérez, P Rander, J Renardy, J F Roussarie, A Schuller, J P Schwindling, J Trabelsi, A Vallage, B Johnson, R P Kim, H Y Litke, A M McNeil, M A Taylor, G Beddall, A Booth, C N Boswell, R Brew, C A J Cartwright, S L Combley, F Köksal, A Letho, M Newton, W M Rankin, C Reeve, J Thompson, L F Böhrer, A Brandt, S Cowan, G D Feigl, E Grupen, Claus Lutters, G Minguet-Rodríguez, J A Rivera, F Saraiva, P Smolik, L Stephan, F Apollonio, M Bosisio, L Della Marina, R Giannini, G Gobbo, B Musolino, G Ragusa, F Rothberg, J E Wasserbaech, S R Armstrong, S R Bellantoni, L Elmer, P Feng, Z Ferguson, D P S Gao, Y S González, S Grahl, J Greening, T C Harton, J L Hayes, O J Hu, H McNamara, P A Nachtman, J M Orejudos, W Pan, Y B Saadi, Y Schmitt, M Scott, I J Sharma, V Turk, J Walsh, A M Wu Sau Lan Wu, X Yamartino, J M Zheng, M Zobernig, G
author_sort	Buskulic, Damir
collection	CERN
description	The \Lambda_{\mathrm{b}} polarization in hadronic \mathrm{Z} decays is measured in semileptonic decays from the average energies of the charged lepton and the neutrino. In a data sample of approximately 3 million hadronic \mathrm{Z} decays collected by the ALEPH detector at LEP between 1991 and 1994, 462\pm 31 \Lambda_{\mathrm{b}} candidates are selected using (\Lambda \pi^+)--lepton correlations. From this event sample, the \Lambda_{\m athrm{b}} polarization is measured to be \cal P_{\Lambda_{\mathrm{b}}}=-0.23^{+0.24}_{-0.20}(\m athrm{stat}.)^{+0.08}_{-0.07} (\mathrm{syst.})\,.
id	cern-291081
institution	Organización Europea para la Investigación Nuclear
language	eng
publishDate	1995
record_format	invenio
spelling	cern-2910812019-09-30T06:29:59Zdoi:10.1016/0370-2693(95)01433-0http://cds.cern.ch/record/291081engBuskulic, DamirCasper, David WilliamDe Bonis, IDécamp, DGhez, PGoy, CLees, J PLucotte, AMinard, M NOdier, PPietrzyk, BChmeissani, MCrespo, J MEfthymiopoulos, IFernández, EFernández-Bosman, MGarrido, LJuste, AMartínez, MOrteu, SPacheco, APadilla, CPalla, FabrizioPascual, APerlas, J ARiu, ISánchez, FTeubert, FColaleo, ACreanza, DDe Palma, MFarilla, AGelao, GGirone, MIaselli, GiuseppeMaggi, GMaggi, MMarinelli, NNatali, SNuzzo, SRanieri, ARaso, GRomano, FRuggieri, FSelvaggi, GSilvestris, LTempesta, PZito, GHuang, XLin, JOuyang, QWang, TXie, YXu, RXue, SZhang, JZhang, LZhao, WAlemany, RBazarko, A OBonvicini, GCattaneo, MComas, PCoyle, PDrevermann, HForty, Roger WFrank, MHagelberg, RHarvey, JJacobsen, RJanot, PJost, BKneringer, EKnobloch, JLehraus, IvanMartin, E BMato, PMinten, Adolf GMiquel, RMir, L MMoneta, LOest, TPalazzi, PPater, J RPusztaszeri, J FRanjard, FRensing, P ERolandi, LuigiSchlatter, W DSchmelling, MSchneider, OTejessy, WTomalin, I RVenturi, AWachsmuth, H WWildish, TWitzeling, WWotschack, JAjaltouni, Ziad JBardadin-Otwinowska, MariaBarrès, ABoyer, CFalvard, AGay, PGuicheney, CHenrard, PJousset, JMichel, BMonteil, SMontret, J CPallin, DPerret, PPodlyski, FProriol, JRossignol, J MSaadi, FFearnley, TomHansen, J BHansen, J DHansen, J RHansen, P HNilsson, B SKyriakis, AMarkou, CSimopoulou, ErriettaSiotis, IVayaki, AnnaZachariadou, KBlondel, ABonneaud, G RBrient, J CBourdon, PRougé, ARumpf, MTanaka, RValassi, AndreaVerderi, MVideau, H LCandlin, D JParsons, M IFocardi, EParrini, GCorden, MDelfino, M CGeorgiopoulos, C HJaffe, D EAntonelli, ABencivenni, GBologna, GBossi, FCampana, PCapon, GChiarella, VFelici, GLaurelli, PMannocchi, GMurtas, FMurtas, G PPassalacqua, LPepé-Altarelli, MCurtis, LDorris, S JHalley, A WKnowles, I GLynch, J GO'Shea, VRaine, CReeves, PScarr, J MSmith, KThompson, A SThomson, FThorn, STurnbull, R MBecker, UBraun, OGeweniger, CGraefe, GHanke, PHepp, VKluge, E EPutzer, ARensch, BSchmidt, MSommer, JStenzel, HTittel, KWerner, SWunsch, MAbbaneo, DBeuselinck, RBinnie, David MCameron, WColling, D JDornan, Peter JKonstantinidis, N PMoutoussi, ANash, JSan Martin, GSedgbeer, J KStacey, A MDissertori, GGirtler, PKuhn, DRudolph, GBowdery, C KBrodbeck, T JColrain, PCrawford, GFinch, A JFoster, FHughes, GSloan, TerenceWhelan, E PWilliams, M IGalla, AGreene, A MKleinknecht, KQuast, GRaab, JRenk, BSander, H GWanke, RVan Gemmeren, PZeitnitz, CAubert, Jean-JacquesBencheikh, A MBenchouk, CBonissent, ABujosa, GCalvet, DCarr, JDiaconu, C AEtienne, FThulasidas, MNicod, DPayre, PRousseau, DTalby, MAbt, IAssmann, R WBauer, CBlum, WalterBrown, DDietl, HDydak, FriedrichGanis, GGotzhein, CJakobs, KKroha, HLütjens, GLutz, GerhardMänner, WMoser, H GRichter, R HRosado-Schlosser, ASchael, SSettles, RonaldSeywerd, H C JSaint-Denis, RWiedenmann, WWolf, GBoucrot, JCallot, OCordier, ACourault, FDavier, MDuflot, LGrivaz, J FHeusse, PJacquet, MKim, D WLe Diberder, F RLefrançois, JLutz, A MNikolic, I APark, H JPark, I CSchune, M HSimion, SVeillet, J JVideau, IAzzurri, PBagliesi, GBatignani, GBettarini, SBozzi, CCalderini, GCarpinelli, MCiocci, M ACiulli, VDell'Orso, RFantechi, RFerrante, IFoà, LForti, FGiassi, AGiorgi, M AGregorio, ALigabue, FLusiani, AMarrocchesi, P SMessineo, ARizzo, GSanguinetti, GSciabà, ASpagnolo, PSteinberger, JackTenchini, RobertoTonelli, GVannini, CVerdini, P GWalsh, JBetteridge, A PBlair, G ABryant, L MCerutti, FChambers, J TGao, YGreen, M GJohnson, D LMedcalf, TPerrodo, PStrong, J AVon Wimmersperg-Töller, J HBotterill, David RClifft, R WEdgecock, T RHaywood, SEdwards, MMaley, PNorton, P RThompson, J CBloch-Devaux, BColas, PEmery, SKozanecki, WitoldLançon, ELemaire, M CLocci, EMarx, BPérez, PRander, JRenardy, J FRoussarie, ASchuller, J PSchwindling, JTrabelsi, AVallage, BJohnson, R PKim, H YLitke, A MMcNeil, M ATaylor, GBeddall, ABooth, C NBoswell, RBrew, C A JCartwright, S LCombley, FKöksal, ALetho, MNewton, W MRankin, CReeve, JThompson, L FBöhrer, ABrandt, SCowan, G DFeigl, EGrupen, ClausLutters, GMinguet-Rodríguez, J ARivera, FSaraiva, PSmolik, LStephan, FApollonio, MBosisio, LDella Marina, RGiannini, GGobbo, BMusolino, GRagusa, FRothberg, J EWasserbaech, S RArmstrong, S RBellantoni, LElmer, PFeng, ZFerguson, D P SGao, Y SGonzález, SGrahl, JGreening, T CHarton, J LHayes, O JHu, HMcNamara, P ANachtman, J MOrejudos, WPan, Y BSaadi, YSchmitt, MScott, I JSharma, VTurk, JWalsh, A MWu Sau LanWu, XYamartino, J MZheng, MZobernig, GMeasurement of $\Lambda_{b}$ polarization in Z decaysParticle Physics - ExperimentThe \Lambda_{\mathrm{b}} polarization in hadronic \mathrm{Z} decays is measured in semileptonic decays from the average energies of the charged lepton and the neutrino. In a data sample of approximately 3 million hadronic \mathrm{Z} decays collected by the ALEPH detector at LEP between 1991 and 1994, 462\pm 31 \Lambda_{\mathrm{b}} candidates are selected using (\Lambda \pi^+)--lepton correlations. From this event sample, the \Lambda_{\m athrm{b}} polarization is measured to be \cal P_{\Lambda_{\mathrm{b}}}=-0.23^{+0.24}_{-0.20}(\m athrm{stat}.)^{+0.08}_{-0.07} (\mathrm{syst.})\,.CERN-PPE-95-156FSU-SCRI-96-19oai:cds.cern.ch:2910811995-11-02
spellingShingle	Particle Physics - Experiment Buskulic, Damir Casper, David William De Bonis, I Décamp, D Ghez, P Goy, C Lees, J P Lucotte, A Minard, M N Odier, P Pietrzyk, B Chmeissani, M Crespo, J M Efthymiopoulos, I Fernández, E Fernández-Bosman, M Garrido, L Juste, A Martínez, M Orteu, S Pacheco, A Padilla, C Palla, Fabrizio Pascual, A Perlas, J A Riu, I Sánchez, F Teubert, F Colaleo, A Creanza, D De Palma, M Farilla, A Gelao, G Girone, M Iaselli, Giuseppe Maggi, G Maggi, M Marinelli, N Natali, S Nuzzo, S Ranieri, A Raso, G Romano, F Ruggieri, F Selvaggi, G Silvestris, L Tempesta, P Zito, G Huang, X Lin, J Ouyang, Q Wang, T Xie, Y Xu, R Xue, S Zhang, J Zhang, L Zhao, W Alemany, R Bazarko, A O Bonvicini, G Cattaneo, M Comas, P Coyle, P Drevermann, H Forty, Roger W Frank, M Hagelberg, R Harvey, J Jacobsen, R Janot, P Jost, B Kneringer, E Knobloch, J Lehraus, Ivan Martin, E B Mato, P Minten, Adolf G Miquel, R Mir, L M Moneta, L Oest, T Palazzi, P Pater, J R Pusztaszeri, J F Ranjard, F Rensing, P E Rolandi, Luigi Schlatter, W D Schmelling, M Schneider, O Tejessy, W Tomalin, I R Venturi, A Wachsmuth, H W Wildish, T Witzeling, W Wotschack, J Ajaltouni, Ziad J Bardadin-Otwinowska, Maria Barrès, A Boyer, C Falvard, A Gay, P Guicheney, C Henrard, P Jousset, J Michel, B Monteil, S Montret, J C Pallin, D Perret, P Podlyski, F Proriol, J Rossignol, J M Saadi, F Fearnley, Tom Hansen, J B Hansen, J D Hansen, J R Hansen, P H Nilsson, B S Kyriakis, A Markou, C Simopoulou, Errietta Siotis, I Vayaki, Anna Zachariadou, K Blondel, A Bonneaud, G R Brient, J C Bourdon, P Rougé, A Rumpf, M Tanaka, R Valassi, Andrea Verderi, M Videau, H L Candlin, D J Parsons, M I Focardi, E Parrini, G Corden, M Delfino, M C Georgiopoulos, C H Jaffe, D E Antonelli, A Bencivenni, G Bologna, G Bossi, F Campana, P Capon, G Chiarella, V Felici, G Laurelli, P Mannocchi, G Murtas, F Murtas, G P Passalacqua, L Pepé-Altarelli, M Curtis, L Dorris, S J Halley, A W Knowles, I G Lynch, J G O'Shea, V Raine, C Reeves, P Scarr, J M Smith, K Thompson, A S Thomson, F Thorn, S Turnbull, R M Becker, U Braun, O Geweniger, C Graefe, G Hanke, P Hepp, V Kluge, E E Putzer, A Rensch, B Schmidt, M Sommer, J Stenzel, H Tittel, K Werner, S Wunsch, M Abbaneo, D Beuselinck, R Binnie, David M Cameron, W Colling, D J Dornan, Peter J Konstantinidis, N P Moutoussi, A Nash, J San Martin, G Sedgbeer, J K Stacey, A M Dissertori, G Girtler, P Kuhn, D Rudolph, G Bowdery, C K Brodbeck, T J Colrain, P Crawford, G Finch, A J Foster, F Hughes, G Sloan, Terence Whelan, E P Williams, M I Galla, A Greene, A M Kleinknecht, K Quast, G Raab, J Renk, B Sander, H G Wanke, R Van Gemmeren, P Zeitnitz, C Aubert, Jean-Jacques Bencheikh, A M Benchouk, C Bonissent, A Bujosa, G Calvet, D Carr, J Diaconu, C A Etienne, F Thulasidas, M Nicod, D Payre, P Rousseau, D Talby, M Abt, I Assmann, R W Bauer, C Blum, Walter Brown, D Dietl, H Dydak, Friedrich Ganis, G Gotzhein, C Jakobs, K Kroha, H Lütjens, G Lutz, Gerhard Männer, W Moser, H G Richter, R H Rosado-Schlosser, A Schael, S Settles, Ronald Seywerd, H C J Saint-Denis, R Wiedenmann, W Wolf, G Boucrot, J Callot, O Cordier, A Courault, F Davier, M Duflot, L Grivaz, J F Heusse, P Jacquet, M Kim, D W Le Diberder, F R Lefrançois, J Lutz, A M Nikolic, I A Park, H J Park, I C Schune, M H Simion, S Veillet, J J Videau, I Azzurri, P Bagliesi, G Batignani, G Bettarini, S Bozzi, C Calderini, G Carpinelli, M Ciocci, M A Ciulli, V Dell'Orso, R Fantechi, R Ferrante, I Foà, L Forti, F Giassi, A Giorgi, M A Gregorio, A Ligabue, F Lusiani, A Marrocchesi, P S Messineo, A Rizzo, G Sanguinetti, G Sciabà, A Spagnolo, P Steinberger, Jack Tenchini, Roberto Tonelli, G Vannini, C Verdini, P G Walsh, J Betteridge, A P Blair, G A Bryant, L M Cerutti, F Chambers, J T Gao, Y Green, M G Johnson, D L Medcalf, T Perrodo, P Strong, J A Von Wimmersperg-Töller, J H Botterill, David R Clifft, R W Edgecock, T R Haywood, S Edwards, M Maley, P Norton, P R Thompson, J C Bloch-Devaux, B Colas, P Emery, S Kozanecki, Witold Lançon, E Lemaire, M C Locci, E Marx, B Pérez, P Rander, J Renardy, J F Roussarie, A Schuller, J P Schwindling, J Trabelsi, A Vallage, B Johnson, R P Kim, H Y Litke, A M McNeil, M A Taylor, G Beddall, A Booth, C N Boswell, R Brew, C A J Cartwright, S L Combley, F Köksal, A Letho, M Newton, W M Rankin, C Reeve, J Thompson, L F Böhrer, A Brandt, S Cowan, G D Feigl, E Grupen, Claus Lutters, G Minguet-Rodríguez, J A Rivera, F Saraiva, P Smolik, L Stephan, F Apollonio, M Bosisio, L Della Marina, R Giannini, G Gobbo, B Musolino, G Ragusa, F Rothberg, J E Wasserbaech, S R Armstrong, S R Bellantoni, L Elmer, P Feng, Z Ferguson, D P S Gao, Y S González, S Grahl, J Greening, T C Harton, J L Hayes, O J Hu, H McNamara, P A Nachtman, J M Orejudos, W Pan, Y B Saadi, Y Schmitt, M Scott, I J Sharma, V Turk, J Walsh, A M Wu Sau Lan Wu, X Yamartino, J M Zheng, M Zobernig, G Measurement of $\Lambda_{b}$ polarization in Z decays
title	Measurement of $\Lambda_{b}$ polarization in Z decays
title_full	Measurement of $\Lambda_{b}$ polarization in Z decays
title_fullStr	Measurement of $\Lambda_{b}$ polarization in Z decays
title_full_unstemmed	Measurement of $\Lambda_{b}$ polarization in Z decays
title_short	Measurement of $\Lambda_{b}$ polarization in Z decays
title_sort	measurement of $\lambda_{b}$ polarization in z decays
topic	Particle Physics - Experiment
url	https://dx.doi.org/10.1016/0370-2693(95)01433-0 http://cds.cern.ch/record/291081
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measurementoflambdabpolarizationinzdecays AT richterrh measurementoflambdabpolarizationinzdecays AT rosadoschlossera measurementoflambdabpolarizationinzdecays AT schaels measurementoflambdabpolarizationinzdecays AT settlesronald measurementoflambdabpolarizationinzdecays AT seywerdhcj measurementoflambdabpolarizationinzdecays AT saintdenisr measurementoflambdabpolarizationinzdecays AT wiedenmannw measurementoflambdabpolarizationinzdecays AT wolfg measurementoflambdabpolarizationinzdecays AT boucrotj measurementoflambdabpolarizationinzdecays AT calloto measurementoflambdabpolarizationinzdecays AT cordiera measurementoflambdabpolarizationinzdecays AT couraultf measurementoflambdabpolarizationinzdecays AT davierm measurementoflambdabpolarizationinzdecays AT duflotl measurementoflambdabpolarizationinzdecays AT grivazjf measurementoflambdabpolarizationinzdecays AT heussep measurementoflambdabpolarizationinzdecays AT jacquetm measurementoflambdabpolarizationinzdecays AT kimdw measurementoflambdabpolarizationinzdecays AT lediberderfr measurementoflambdabpolarizationinzdecays AT lefrancoisj measurementoflambdabpolarizationinzdecays AT lutzam measurementoflambdabpolarizationinzdecays AT nikolicia measurementoflambdabpolarizationinzdecays AT parkhj measurementoflambdabpolarizationinzdecays AT parkic measurementoflambdabpolarizationinzdecays AT schunemh measurementoflambdabpolarizationinzdecays AT simions measurementoflambdabpolarizationinzdecays AT veilletjj measurementoflambdabpolarizationinzdecays AT videaui measurementoflambdabpolarizationinzdecays AT azzurrip measurementoflambdabpolarizationinzdecays AT bagliesig measurementoflambdabpolarizationinzdecays AT batignanig measurementoflambdabpolarizationinzdecays AT bettarinis measurementoflambdabpolarizationinzdecays AT bozzic measurementoflambdabpolarizationinzdecays AT calderinig measurementoflambdabpolarizationinzdecays AT carpinellim measurementoflambdabpolarizationinzdecays AT cioccima measurementoflambdabpolarizationinzdecays AT ciulliv measurementoflambdabpolarizationinzdecays AT dellorsor measurementoflambdabpolarizationinzdecays AT fantechir measurementoflambdabpolarizationinzdecays AT ferrantei measurementoflambdabpolarizationinzdecays AT foal measurementoflambdabpolarizationinzdecays AT fortif measurementoflambdabpolarizationinzdecays AT giassia measurementoflambdabpolarizationinzdecays AT giorgima measurementoflambdabpolarizationinzdecays AT gregorioa measurementoflambdabpolarizationinzdecays AT ligabuef measurementoflambdabpolarizationinzdecays AT lusiania measurementoflambdabpolarizationinzdecays AT marrocchesips measurementoflambdabpolarizationinzdecays AT messineoa measurementoflambdabpolarizationinzdecays AT rizzog measurementoflambdabpolarizationinzdecays AT sanguinettig measurementoflambdabpolarizationinzdecays AT sciabaa measurementoflambdabpolarizationinzdecays AT spagnolop measurementoflambdabpolarizationinzdecays AT steinbergerjack measurementoflambdabpolarizationinzdecays AT tenchiniroberto measurementoflambdabpolarizationinzdecays AT tonellig measurementoflambdabpolarizationinzdecays AT vanninic measurementoflambdabpolarizationinzdecays AT verdinipg measurementoflambdabpolarizationinzdecays AT walshj measurementoflambdabpolarizationinzdecays AT betteridgeap measurementoflambdabpolarizationinzdecays AT blairga measurementoflambdabpolarizationinzdecays AT bryantlm measurementoflambdabpolarizationinzdecays AT ceruttif measurementoflambdabpolarizationinzdecays AT chambersjt measurementoflambdabpolarizationinzdecays AT gaoy measurementoflambdabpolarizationinzdecays AT greenmg measurementoflambdabpolarizationinzdecays AT johnsondl measurementoflambdabpolarizationinzdecays AT medcalft measurementoflambdabpolarizationinzdecays AT perrodop measurementoflambdabpolarizationinzdecays AT strongja measurementoflambdabpolarizationinzdecays AT vonwimmerspergtollerjh measurementoflambdabpolarizationinzdecays AT botterilldavidr measurementoflambdabpolarizationinzdecays AT clifftrw measurementoflambdabpolarizationinzdecays AT edgecocktr measurementoflambdabpolarizationinzdecays AT haywoods measurementoflambdabpolarizationinzdecays AT edwardsm measurementoflambdabpolarizationinzdecays AT maleyp measurementoflambdabpolarizationinzdecays AT nortonpr measurementoflambdabpolarizationinzdecays AT thompsonjc measurementoflambdabpolarizationinzdecays AT blochdevauxb measurementoflambdabpolarizationinzdecays AT colasp measurementoflambdabpolarizationinzdecays AT emerys measurementoflambdabpolarizationinzdecays AT kozaneckiwitold measurementoflambdabpolarizationinzdecays AT lancone measurementoflambdabpolarizationinzdecays AT lemairemc measurementoflambdabpolarizationinzdecays AT loccie measurementoflambdabpolarizationinzdecays AT marxb measurementoflambdabpolarizationinzdecays AT perezp measurementoflambdabpolarizationinzdecays AT randerj measurementoflambdabpolarizationinzdecays AT renardyjf measurementoflambdabpolarizationinzdecays AT roussariea measurementoflambdabpolarizationinzdecays AT schullerjp measurementoflambdabpolarizationinzdecays AT schwindlingj measurementoflambdabpolarizationinzdecays AT trabelsia measurementoflambdabpolarizationinzdecays AT vallageb measurementoflambdabpolarizationinzdecays AT johnsonrp measurementoflambdabpolarizationinzdecays AT kimhy measurementoflambdabpolarizationinzdecays AT litkeam measurementoflambdabpolarizationinzdecays AT mcneilma measurementoflambdabpolarizationinzdecays AT taylorg measurementoflambdabpolarizationinzdecays AT beddalla measurementoflambdabpolarizationinzdecays AT boothcn measurementoflambdabpolarizationinzdecays AT boswellr measurementoflambdabpolarizationinzdecays AT brewcaj measurementoflambdabpolarizationinzdecays AT cartwrightsl measurementoflambdabpolarizationinzdecays AT combleyf measurementoflambdabpolarizationinzdecays AT koksala measurementoflambdabpolarizationinzdecays AT lethom measurementoflambdabpolarizationinzdecays AT newtonwm measurementoflambdabpolarizationinzdecays AT rankinc measurementoflambdabpolarizationinzdecays AT reevej measurementoflambdabpolarizationinzdecays AT thompsonlf measurementoflambdabpolarizationinzdecays AT bohrera measurementoflambdabpolarizationinzdecays AT brandts measurementoflambdabpolarizationinzdecays AT cowangd measurementoflambdabpolarizationinzdecays AT feigle measurementoflambdabpolarizationinzdecays AT grupenclaus measurementoflambdabpolarizationinzdecays AT luttersg measurementoflambdabpolarizationinzdecays AT minguetrodriguezja measurementoflambdabpolarizationinzdecays AT riveraf measurementoflambdabpolarizationinzdecays AT saraivap measurementoflambdabpolarizationinzdecays AT smolikl measurementoflambdabpolarizationinzdecays AT stephanf measurementoflambdabpolarizationinzdecays AT apolloniom measurementoflambdabpolarizationinzdecays AT bosisiol measurementoflambdabpolarizationinzdecays AT dellamarinar measurementoflambdabpolarizationinzdecays AT gianninig measurementoflambdabpolarizationinzdecays AT gobbob measurementoflambdabpolarizationinzdecays AT musolinog measurementoflambdabpolarizationinzdecays AT ragusaf measurementoflambdabpolarizationinzdecays AT rothbergje measurementoflambdabpolarizationinzdecays AT wasserbaechsr measurementoflambdabpolarizationinzdecays AT armstrongsr measurementoflambdabpolarizationinzdecays AT bellantonil measurementoflambdabpolarizationinzdecays AT elmerp measurementoflambdabpolarizationinzdecays AT fengz measurementoflambdabpolarizationinzdecays AT fergusondps measurementoflambdabpolarizationinzdecays AT gaoys measurementoflambdabpolarizationinzdecays AT gonzalezs measurementoflambdabpolarizationinzdecays AT grahlj measurementoflambdabpolarizationinzdecays AT greeningtc measurementoflambdabpolarizationinzdecays AT hartonjl measurementoflambdabpolarizationinzdecays AT hayesoj measurementoflambdabpolarizationinzdecays AT huh measurementoflambdabpolarizationinzdecays AT mcnamarapa measurementoflambdabpolarizationinzdecays AT nachtmanjm measurementoflambdabpolarizationinzdecays AT orejudosw measurementoflambdabpolarizationinzdecays AT panyb measurementoflambdabpolarizationinzdecays AT saadiy measurementoflambdabpolarizationinzdecays AT schmittm measurementoflambdabpolarizationinzdecays AT scottij measurementoflambdabpolarizationinzdecays AT sharmav measurementoflambdabpolarizationinzdecays AT turkj measurementoflambdabpolarizationinzdecays AT walsham measurementoflambdabpolarizationinzdecays AT wusaulan measurementoflambdabpolarizationinzdecays AT wux measurementoflambdabpolarizationinzdecays AT yamartinojm measurementoflambdabpolarizationinzdecays AT zhengm measurementoflambdabpolarizationinzdecays AT zobernigg measurementoflambdabpolarizationinzdecays

Measurement of $\Lambda_{b}$ polarization in Z decays

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