Inclusive pi(+/-), K+/- and (p,(p)over-bar) production is investigated using data recorded by the ALEPH detector between 1992 and 1994. The momentum spectra and multiplicities are measured separately in Z --> b(b)over-bar, Z --> c(c)over-bar and Z --> u(u)over-bar, d(d)over-bar; s(s)over-bar decays. The number of protons found in b-hadron decays is used to estimate the fraction of b-baryons in b events to be (10.2 +/- 0.7 +/- 2.7)% assuming BR(b-baryon --> pX) = (58 +/- 6)%. From an additional study of proton-lepton correlations in b events, the branching ratio BR(b-baryon --> pl(v)over-bar-X) = (4.63 +/- 0.72 +/- 0.98)% is obtained. The ratio BR(b-baryon --> pl(nu)over-bar-X)/BR(b-baryon --> pX) is found to be 0.080 +/- 0.012 +/- 0.014.
A measurement of the semileptonic branching ratio BR(b-baryon -> pl(v)over-bar-X) and a study of inclusive pi(+/-), K-+/-, (p,(p)over-bar) production in Z decays / R. Barate, D. Buskulic, D. Decamp, P. Ghez, C. Goy, J. Lees, A. Lucotte, M. Minard, J. Nief, B. Pietrzyk, G. Boix, M. Casado, M. Chmeissani, J. Crespo, M. Delfino, E. Fernandez, M. Fernandez-Bosman, L. Garrido, E. Grauges, A. Juste, M. Martinez, G. Merino, R. Miquel, L. Mir, I. Park, A. Pascual, J. Perlas, I. Riu, F. Sanchez, A. Colaleo, D. Creanza, M. de Palma, G. Gelae, G. Iaselli, G. Maggi, R. Maggi, N. Marinelli, S. Nuzzo, A. Ranieri, G. Raso, F. Ruggieri, G. Selvaggi, L. Silvestris, P. Tempesta, A. Tricomi, G. Zito, X. Huang, J. Lin, Q. Ouyang, T. Wang, Y. Xie, R. Xu, S. Xue, J. Zhang, L. Zhang, W. Zhao, D. Abbaneo, R. Alemany, U. Becker, P. Bright-Thomas, D. Casper, M. Cattaneo, F. Cerutti, V. Ciulli, G. Dissertori, H. Drevermann, R. Forty, M. Frank, R. Hagelberg, J. Hansen, J. Harvey, P. Janot, B. Jost, I. Lehraus, P. Mato, A. Minten, L. Moneta, A. Pacheco, J. Pusztaszeri, F. Ranjard, L. Rolandi, D. Rousseau, D. Schlatter, M. Schmitt, O. Schneider, W. Tejessy, F. Teubert, I. Tomalin, H. Wachsmuth, A. Wagner, Z. Ajaltouni, F. Badaud, G. Chazelle, O. Deschamps, A. Falvard, C. Ferdi, P. Gay, C. Guicheney, P. Henrard, J. Jousset, B. Michel, S. Monteil, J. Montret, D. Pallin, P. Perret, F. Podlyski, J. Proriol, P. Rosnet, T. Fearnley, J. Hansen, J. Hansen, P. Hansen, B. Nilsson, B. Rensch, A. Waananen, G. Daskalakis, A. Kyriakis, C. Markou, E. Simopoulou, I. Siotis, A. Vayaki, A. Blondel, G. Bonneaud, J. Brient, P. Bourdon, A. Rouge, M. Rumpf, A. Valassi, M. Verderi, H. Videau, D. Candlin, M. Parsons, T. Boccali, E. Focardi, G. Parrini, K. Zachariadou, M. Corden, C. Georgiopoulos, D. Jaffe, A. Antonelli, G. Bencivenni, G. Bologna, F. Bossi, P. Campana, G. Capon, V. Chiarella, G. Felici, P. Laurelli, G. Mannocchi, F. Murtas, G. Murtas, L. Passalacqua, M. Pepe-Altarelli, L. Curtis, S. Dorris, A. Halley, J. Lynch, P. Negus, V. O'Shea, C. Raine, J. Scarr, K. Smith, P. Teixeira-Dias, A. Thompson, E. Thomson, F. Thomson, O. Buchmuller, S. Dhamotharan, C. Geweniger, G. Graefe, P. Hanke, G. Hansper, V. Hepp, E. Kluge, A. Putzer, J. Sommer, K. Tittel, S. Werner, M. Wunsch, R. Beuselinck, D. Binnie, W. Cameron, P. Dornan, M. Girone, S. Goodsir, E. Martin, A. Moutoussi, J. Nash, J. Sedgbeer, P. Spagnolo, M. Williams, V. Ghete, P. Girtler, E. Kneringer, D. Kuhn, G. Rudolph, A. Betteridge, C. Bowdery, P. Buck, P. Colrain, G. Crawford, A. Finch, F. Foster, G. Hughes, R. Jones, M. Williams, I. Giehl, A. Greene, C. Hoffmann, K. Jakobs, K. Kleinknecht, G. Quast, B. Renk, E. Rohne, H. Sander, P. van Gemmeren, C. Zeitnitz, J. Aubert, C. Benchouk, A. Bonissent, G. Bujosa, J. Carr, P. Coyle, C. Diaconu, F. Etienne, O. Leroy, F. Motsch, P. Payre, M. Talby, A. Sadouki, N. Thulasidas, K. Trabelsi, M. Aleppo, M. Antonelli, F. Ragusa, R. Berlich, W. Blum, V. Buscher, H. Dietl, G. Ganis, C. Gotzhein, H. Kroha, G. Lutjens, G. Lutz, C. Mannert, W. Manner, H. Moser, R. Richter, A. Rosado-Schlosser, S. Schael, R. Settles, H. Seywerd, H. Stenzel, W. Wiedenmann, G. Wolf, J. Boucrot, O. Callot, S. Chen, Y. Choi, A. Cordier, H. Davier, L. Duflot, J. Grivaz, P. Heusse, A. Hocker, A. Jacholkowska, D. Kim, F. Le Diberder, J. Lefrancois, A. Lutz, I. Nikolic, M. Schune, E. Tournefier, J. Veillet, I. Videau, D. Zerwas, P. Azzurri, G. Bagliesi, G. Batignani, S. Bettarini, C. Bozzi, G. Calderini, M. Carpinelli, M. Ciocci, R. Dell'Orso, R. Fantechi, I. Ferrante, L. Foa, F. Forti, A. Giassi, M. Giorgi, A. Gregorio, F. Ligabue, A. Lusiani, P. Marrocchesi, A. Messineo, F. Palla, G. Rizzo, G. Sanguinetti, A. Sciaba, J. Steinberger, R. Tenchini, G. Tonelli, C. Vannini, A. Venturi, P. Verdini, G. Blair, L. Bryant, J. Chambers, M. Green, T. Medcalf, P. Perrodo, J. Strong, J. von Wimmersperg-Toeller, D. Botterill, R. Clifft, T. Edgecock, S. Haywood, P. Norton, J. Thompson, A. Wright, B. Bloch-Devaux, P. Colas, S. Emery, W. Kozanecki, E. Lancon, M. Lemaire, E. Locci, P. Perez, J. Rander, J. Renardy, A. Roussarie, J. Schuller, J. Schwindling, A. Trabelsi, B. Vallage, S. Black, J. Dann, R. Johnson, H. Kim, N. Konstantinidis, A. Litke, M. McNeil, G. Taylor, C. Booth, C. Brew, S. Cartwright, F. Combley, M. Kelly, M. Lehto, J. Reeve, L. Thompson, K. Affholderbach, A. Bohrer, S. Brandt, G. Cowan, C. Grupen, P. Saraiva, L. Smolik, F. Stephan, M. Apollonio, L. Bosisio, R. Della Marina, G. Giannini, B. Gobbo, G. Musolino, J. Rothberg, S. Wasserbaech, S. Armstrong, E. Charles, P. Elmer, D. Ferguson, Y. Gao, S. Gonzalez, T. Greening, O. Hayes, H. Hu, S. Jin, P. McNamara, J. Nachtman, J. Nielsen, W. Orejudos, Y. Pan, Y. Saadi, I. Scott, J. Walsh, S. Wu, X. Wu, J. Yamartino, G. Zobernig. - In: THE EUROPEAN PHYSICAL JOURNAL. C, PARTICLES AND FIELDS. - ISSN 1434-6044. - 5:2(1998), pp. 205-227. [10.1007/s100520050263]
A measurement of the semileptonic branching ratio BR(b-baryon -> pl(v)over-bar-X) and a study of inclusive pi(+/-), K-+/-, (p,(p)over-bar) production in Z decays
M. Aleppo;F. Ragusa;
1998
Abstract
Inclusive pi(+/-), K+/- and (p,(p)over-bar) production is investigated using data recorded by the ALEPH detector between 1992 and 1994. The momentum spectra and multiplicities are measured separately in Z --> b(b)over-bar, Z --> c(c)over-bar and Z --> u(u)over-bar, d(d)over-bar; s(s)over-bar decays. The number of protons found in b-hadron decays is used to estimate the fraction of b-baryons in b events to be (10.2 +/- 0.7 +/- 2.7)% assuming BR(b-baryon --> pX) = (58 +/- 6)%. From an additional study of proton-lepton correlations in b events, the branching ratio BR(b-baryon --> pl(v)over-bar-X) = (4.63 +/- 0.72 +/- 0.98)% is obtained. The ratio BR(b-baryon --> pl(nu)over-bar-X)/BR(b-baryon --> pX) is found to be 0.080 +/- 0.012 +/- 0.014.Pubblicazioni consigliate
I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.