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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
Authors :
Barate, R Buskulic, D Decamp, D Ghez, P Goy, C Lees, Jp Lucotte, A Minard, Mn Nief, Jy Pietrzyk, B Boix, G Casado, Mp Chmeissani, M Crespo, Jm Delfino, M Fernandez, E Fernandez Bosman, M Garrido, L Grauges, E Juste, A Martinez, M Merino, G Miquel, R Mir, Lm Park, Ic Pascual, A Perlas, Ja Riu, I Sanchez, F Colaleo, A Creanza, D de Palma, M Gelae, G Iaselli, G Maggi, G Maggi, R Marinelli, N Nuzzo, S Ranieri, A Raso, G Ruggieri, F Selvaggi, G Silvestris, L Tempesta, P Tricomi, Alessia Rita Zito, G Huang, X Lin, J Ouyang, Q Wang, T Xie, Y Xu, R Xue, S Zhang, J Zhang, L Zhao, W Abbaneo, D Alemany, R Becker, U Bright Thomas, P Casper, D Cattaneo, M Cerutti, F Ciulli, V Dissertori, G Drevermann, H Forty, Rw Frank, M Hagelberg, R Hansen, Jb Harvey, J Janot, P Jost, B Lehraus, I Mato, P Minten, A Moneta, L Pacheco, A Pusztaszeri, Jf Ranjard, F Rolandi, L Rousseau, D Schlatter, D Schmitt, M Schneider, O Tejessy, W Teubert, F Tomalin, Ir Wachsmuth, H Wagner, A Ajaltouni, Z Badaud, F Chazelle, G Deschamps, O Falvard, A Ferdi, C Gay, P Guicheney, C Henrard, P Jousset, J Michel, B Monteil, S Montret, Jc Pallin, D Perret, P Podlyski, F Proriol, J Rosnet, P Fearnley, T Hansen, Jd Hansen, Jr Hansen, Ph Nilsson, Bs Rensch, B Waananen, A Daskalakis, G Kyriakis, A Markou, C Simopoulou, E Siotis, I Vayaki, A Blondel, A Bonneaud, G Brient, Jc Bourdon, P Rouge, A Rumpf, M Valassi, A Verderi, M Videau, H Candlin, Dj Parsons, Mi Boccali, T Focardi, E Parrini, G Zachariadou, K Corden, M Georgiopoulos, C Jaffe, De Antonelli, A Bencivenni, G Bologna, G Bossi, F Campana, P Capon, G Chiarella, V Felici, G Laurelli, P Mannocchi, G Murtas, F Murtas, Gp Passalacqua, L Pepe Altarelli, M Curtis, L Dorris, Sj Halley, Aw Lynch, Jg Negus, P O'Shea, V Raine, C Scarr, Jm Smith, K Teixeira Dias, P Thompson, As Thomson, E Thomson, F Buchmuller, O Dhamotharan, S Geweniger, C Graefe, G Hanke, P Hansper, G Hepp, V Kluge, Ee Putzer, A Sommer, J Tittel, K Werner, S Wunsch, M Beuselinck, R Binnie, Dm Cameron, W Dornan, Pj Girone, M Goodsir, S Martin, Eb Moutoussi, A Nash, J Sedgbeer, Jk Spagnolo, P Williams, Md Ghete, Vm Girtler, P Kneringer, E Kuhn, D Rudolph, G Betteridge, Ap Bowdery, Ck Buck, Pg Colrain, P Crawford, G Finch, Aj Foster, F Hughes, G Jones, Rwl Williams, Mi Giehl, I Greene, Am Hoffmann, C Jakobs, K Kleinknecht, K Quast, G Renk, B Rohne, E Sander, Hg van Gemmeren, P Zeitnitz, C Aubert, Jj Benchouk, C Bonissent, A Bujosa, G Carr, J Coyle, P Diaconu, C Etienne, F Leroy, O Motsch, F Payre, P Talby, M Sadouki, A Thulasidas, N Trabelsi, K Aleppo, M Antonelli, M Ragusa, F Berlich, R Blum, W Buscher, V Dietl, H Ganis, G Gotzhein, C Kroha, H Lutjens, G Lutz, G Mannert, C Manner, W Moser, Hg Richter, R Rosado Schlosser, A Schael, S Settles, R Seywerd, H Stenzel, H Wiedenmann, W Wolf, G Boucrot, J Callot, O Chen, S Choi, Y Cordier, A Davier, H Duflot, L Grivaz, Jf Heusse, P Hocker, A Jacholkowska, A Kim, Dw Le Diberder, F Lefrancois, J Lutz, Am Nikolic, I Schune, Mh Tournefier, E Veillet, Jj Videau, I Zerwas, D Azzurri, P Bagliesi, G Batignani, G Bettarini, S Bozzi, C Calderini, G Carpinelli, M Ciocci, Ma Dell'Orso, R Fantechi, R Ferrante, I Foa, L Forti, F Giassi, A Giorgi, Ma Gregorio, A Ligabue, F Lusiani, A Marrocchesi, Ps Messineo, A Palla, F Rizzo, G Sanguinetti, G Sciaba, A Steinberger, J Tenchini, R Tonelli, G Vannini, C Venturi, A Verdini, Pg Blair, Ga Bryant, Lm Chambers, Jt Green, Mg Medcalf, T Perrodo, P Strong, Ja von Wimmersperg Toeller JH Botterill, Dr Clifft, Rw Edgecock, Tr Haywood, S Norton, Pr Thompson, Jc Wright, Ae Bloch Devaux, B Colas, P Emery, S Kozanecki, W Lancon, E Lemaire, Mc Locci, E Perez, P Rander, J Renardy, Jf Roussarie, A Schuller, Jp Schwindling, J Trabelsi, A Vallage, B Black, Sn Dann, Jh Johnson, Rp Kim, Hy Konstantinidis, N Litke, Am Mcneil, Ma Taylor, G Booth, Cn Brew, Caj Cartwright, S Combley, F Kelly, Ms Lehto, M Reeve, J Thompson, Lf Affholderbach, K Bohrer, A Brandt, S Cowan, G Grupen, C Saraiva, P Smolik, L Stephan, F Apollonio, M Bosisio, L Della Marina, R Giannini, G Gobbo, B Musolino, G Rothberg, J Wasserbaech, S Armstrong, Sr Charles, E Elmer, P Ferguson, Dps Gao, Y Gonzalez, S Greening, Tc Hayes, Oj Hu, H Jin, S Mcnamara, Pa Nachtman, Jm Nielsen, J Orejudos, W Pan, Yb Saadi, Y Scott, Ij Walsh, J Wu, Sl Wu, X Yamartino, Jm Zobernig, G. Barate, R Buskulic, D Decamp, D Ghez, P Goy, C Lees, Jp Lucotte, A Minard, Mn Nief, Jy Pietrzyk, B Boix, G Casado, Mp Chmeissani, M Crespo, Jm Delfino, M Fernandez, E Fernandez Bosman, M Garrido, L Grauges, E Juste, A Martinez, M Merino, G Miquel, R Mir, Lm Park, Ic Pascual, A Perlas, Ja Riu, I Sanchez, F Colaleo, A Creanza, D de Palma, M Gelae, G Iaselli, G Maggi, G Maggi, R Marinelli, N Nuzzo, S Ranieri, A Raso, G Ruggieri, F Selvaggi, G Silvestris, L Tempesta, P Tricomi, A Zito, G Huang, X Lin, J Ouyang, Q Wang, T Xie, Y Xu, R Xue, S Zhang, J Zhang, L Zhao, W Abbaneo, D Alemany, R Becker, U Bright Thomas, P Casper, D Cattaneo, M Cerutti, F Ciulli, V Dissertori, G Drevermann, H Forty, Rw Frank, M Hagelberg, R Hansen, Jb Harvey, J Janot, P Jost, B Lehraus, I Mato, P Minten, A Moneta, L Pacheco, A Pusztaszeri, Jf Ranjard, F Rolandi, Luigi Rousseau, D Schlatter, D Schmitt, M Schneider, O Tejessy, W Teubert, F Tomalin, Ir Wachsmuth, H Wagner, A Ajaltouni, Z Badaud, F Chazelle, G Deschamps, O Falvard, A Ferdi, C Gay, P Guicheney, C Henrard, P Jousset, J Michel, B Monteil, S Montret, Jc Pallin, D Perret, P Podlyski, F Proriol, J Rosnet, P Fearnley, T Hansen, Jd Hansen, Jr Hansen, Ph Nilsson, B Rensch, B Waananen, A Daskalakis, G Kyriakis, A Markou, C Simopoulou, E Siotis, I Vayaki, A Blondel, A Bonneaud, G Brient, Jc Bourdon, P Rouge, A Rumpf, M Valassi, A Verderi, M Videau, H Candlin, Dj Parsons, Mi Boccali, T Focardi, E Parrini, G Zachariadou, K Corden, M Georgiopoulos, C Jaffe, De Antonelli, A Bencivenni, G Bologna, G Bossi, F Campana, P Capon, G Chiarella, V Felici, G Laurelli, P Mannocchi, G Murtas, F Murtas, Gp Passalacqua, L Pepe Altarelli, M Curtis, L Dorris, Sj Halley, Aw Lynch, Jg Negus, P O'Shea, V Raine, C Scarr, Jm Smith, K Teixeira Dias, P Thompson, A Thomson, E Thomson, F Buchmuller, O Dhamotharan, S Geweniger, C Graefe, G Hanke, P Hansper, G Hepp, V Kluge, Ee Putzer, A Sommer, J Tittel, K Werner, S Wunsch, M Beuselinck, R Binnie, Dm Cameron, W Dornan, Pj Girone, M Goodsir, S Martin, Eb Moutoussi, A Nash, J Sedgbeer, Jk Spagnolo, P Williams, Md Ghete, Vm Girtler, P Kneringer, E Kuhn, D Rudolph, G Betteridge, Ap Bowdery, Ck Buck, Pg Colrain, P Crawford, G Finch, Aj Foster, F Hughes, G Jones, Rwl Williams, Mi Giehl, I Greene, Am Hoffmann, C Jakobs, K Kleinknecht, K Quast, G Renk, B Rohne, E Sander, Hg van Gemmeren, P Zeitnitz, C Aubert, Jj Benchouk, C Bonissent, A Bujosa, G Carr, J Coyle, P Diaconu, C Etienne, F Leroy, O Motsch, F Payre, P Talby, M Sadouki, A Thulasidas, N Trabelsi, K Aleppo, M Antonelli, M Ragusa, F Berlich, R Blum, W Buscher, V Dietl, H Ganis, G Gotzhein, C Kroha, H Lutjens, G Lutz, G Mannert, C Manner, W Moser, Hg Richter, R Rosado Schlosser, A Schael, S Settles, R Seywerd, H Stenzel, H Wiedenmann, W Wolf, G Boucrot, J Callot, O Chen, S Choi, Y Cordier, A Davier, H Duflot, L Grivaz, Jf Heusse, P Hocker, A Jacholkowska, A Kim, Dw Le Diberder, F Lefrancois, J Lutz, Am Nikolic, I Schune, Mh Tournefier, E Veillet, Jj Videau, I Zerwas, D Azzurri, P Bagliesi, G Batignani, G Bettarini, S Bozzi, C Calderini, G Carpinelli, M Ciocci, Ma Dell'Orso, R Fantechi, R Ferrante, I Foa, L Forti, F Giassi, A Giorgi, Ma Gregorio, A Ligabue, Franco Lusiani, Alberto Marrocchesi, P Messineo, A Palla, F Rizzo, G Sanguinetti, G Sciaba, A Steinberger, J Tenchini, R Tonelli, G Vannini, C Venturi, A Verdini, Pg Blair, Ga Bryant, Lm Chambers, Jt Green, Mg Medcalf, T Perrodo, P Strong, Ja von Wimmersperg Toeller, Jh Botterill, Dr Clifft, Rw Edgecock, Tr Haywood, S Norton, Pr Thompson, Jc Wright, Ae Bloch Devaux, B Colas, P Emery, S Kozanecki, W Lancon, E Lemaire, Mc Locci, E Perez, P Rander, J Renardy, Jf Roussarie, A Schuller, Jp Schwindling, J Trabelsi, A Vallage, B Black, Sn Dann, Jh Johnson, Rp Kim, Hy Konstantinidis, N Litke, Am Mcneil, Ma Taylor, G Booth, Cn Brew, Caj Cartwright, S Combley, F Kelly, M Lehto, M Reeve, J Thompson, Lf Affholderbach, K Bohrer, A Brandt, S Cowan, G Grupen, C Saraiva, P Smolik, L Stephan, F Apollonio, M Bosisio, L Della Marina, R Giannini, G Gobbo, B Musolino, G Rothberg, J Wasserbaech, S Armstrong, Sr Charles, E Elmer, P Ferguson, Dp Gao, Y Gonzalez, S Greening, Tc Hayes, Oj Hu, H Jin, S Mcnamara, Pa Nachtman, Jm Nielsen, J Orejudos, W Pan, Yb Saadi, Y Scott, Ij Walsh, J Wu, Sl Wu, X Yamartino, Jm Zobernig, G.
Publication Year :
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.
Details
Language :
English
Database :
OpenAIRE
Accession number :
edsair.dedup.wf.001..0e773215613ccd6ee931038e21261e4f