@article{b45ea73d400e412582343caa311f5612,
title = "Charm counting in b decays",
abstract = "The inclusive production of charmed particles in Z → b{\=b} decays has been measured from the yield of D0, D+, D+ s and A+ c decays in a sample of q{\=q} 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.",
author = "\{ALEPH Collaboration\} and D. Buskulic and \{De Bonis\}, I. and D. Decamp and P. Ghez and C. Goy and Lees, \{J. P.\} and A. Lucotte and Minard, \{M. N.\} and Nief, \{J. Y.\} and P. Odier and B. Pietrzyk and Casado, \{M. P.\} and M. Chmeissani and Crespo, \{J. M.\} and M. Delfino and I. Efthymiopoulos and E. Fernandez and M. Fernandez-Bosman and Ll Garrido and A. Juste and M. Martinez and S. Orteu and C. Padilla and Park, \{I. C.\} and A. Pascual and Perlas, \{J. A.\} and I. Riu and F. Sanchez and F. Teubert and A. Colaleo and D. Creanza and \{de Palma\}, M. and G. Gelao and M. Girone and G. Iaselli and G. Maggi and M. Maggi and N. Marinelli and S. Nuzzo and A. Ranieri and G. Raso and F. Ruggieri and G. Selvaggi and L. Silvestris and P. Tempesta and A. Tricomi and G. Zito and X. Huang and J. Lin and P. Elmer",
note = "Funding Information: Forschung, Austria. t9 Permanent address: Kangnung National University, Kangnung, Korea. *{\textquoteright} Now at DESY, Hamburg, Germany. *{\textquoteright} Also at CERN, 1211 Geneva 23, Switzerland. *{\textquoteright} 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. *{\textquoteright} 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.",
year = "1996",
month = nov,
day = "21",
doi = "10.1016/S0370-2693(96)01318-4",
language = "English (US)",
volume = "388",
pages = "648--658",
journal = "Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics",
issn = "0370-2693",
publisher = "Elsevier B.V.",
number = "3",
}