TY - JOUR
T1 - Charm counting in b decays
AU - ALEPH Collaboration
AU - Buskulic, D.
AU - De Bonis, I.
AU - Decamp, D.
AU - Ghez, P.
AU - Goy, C.
AU - Lees, J. P.
AU - Lucotte, A.
AU - Minard, M. N.
AU - Nief, J. Y.
AU - Odier, P.
AU - Pietrzyk, B.
AU - Casado, M. P.
AU - Chmeissani, M.
AU - Crespo, J. M.
AU - Delfino, M.
AU - Efthymiopoulos, I.
AU - Fernandez, E.
AU - Fernandez-Bosman, M.
AU - Garrido, Ll
AU - Juste, A.
AU - Martinez, M.
AU - Orteu, S.
AU - Padilla, C.
AU - Park, I. C.
AU - Pascual, A.
AU - Perlas, J. A.
AU - Riu, I.
AU - Sanchez, F.
AU - Teubert, F.
AU - Colaleo, A.
AU - Creanza, D.
AU - de Palma, M.
AU - Gelao, G.
AU - Girone, M.
AU - Iaselli, G.
AU - Maggi, G.
AU - Maggi, M.
AU - Marinelli, N.
AU - Nuzzo, S.
AU - Ranieri, A.
AU - Raso, G.
AU - Ruggieri, F.
AU - Selvaggi, G.
AU - Silvestris, L.
AU - Tempesta, P.
AU - Tricomi, A.
AU - Zito, G.
AU - Huang, X.
AU - Lin, J.
AU - Elmer, P.
N1 - Funding Information:
Forschung, Austria. t9 Permanent address: Kangnung National University, Kangnung, Korea. *’ Now at DESY, Hamburg, Germany. *’ Also at CERN, 1211 Geneva 23, Switzerland. *’ Supported by the US Departmento f Energy, grant DE-FG03-92ER40689. 23N ow at Wayne State University, Detroit, MI 48202, USA. 24N ow at Max-Plank-Instittit fur Kemphysik, Heidelberg, Germany. 25A lso at Istituto di Matematica e Flsica, Universita di Sassari, Sassari, Italy. 26P ermanent address: Sung Kyun Kwon University, Suwon, Korea. *’ Now at The Johns Hopkins University, Baltimore, MD 21218, USA. 28N ow at Harvard University, Cambridge, MA 02138, USA. 29N ow at Rutgers University, Piscataway, NJ 088550849, USA.
PY - 1996/11/21
Y1 - 1996/11/21
N2 - The inclusive production of charmed particles in Z → bb̄ decays has been measured from the yield of D0, D+, D+ s and A+ c decays in a sample of qq̄ events with high b purity collected with the ALEPH detector from 1992 to 1995. From these measurements, adding the charmonia production rate and an estimate of the charmed strange baryon contribution, the average number of charm quarks per b decay is determined to be nc = 1.230 ± 0.036 ± 0.038 ± 0.053, where the uncertainties are due to statistics, systematic effects and branching ratios, respectively.
AB - The inclusive production of charmed particles in Z → bb̄ decays has been measured from the yield of D0, D+, D+ s and A+ c decays in a sample of qq̄ events with high b purity collected with the ALEPH detector from 1992 to 1995. From these measurements, adding the charmonia production rate and an estimate of the charmed strange baryon contribution, the average number of charm quarks per b decay is determined to be nc = 1.230 ± 0.036 ± 0.038 ± 0.053, where the uncertainties are due to statistics, systematic effects and branching ratios, respectively.
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U2 - 10.1016/S0370-2693(96)01318-4
DO - 10.1016/S0370-2693(96)01318-4
M3 - Article
AN - SCOPUS:0008626521
SN - 0370-2693
VL - 388
SP - 648
EP - 658
JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
IS - 3
ER -