@article{606f2eac7bb04bf880abd9f8fe120e72,
title = "Measurement of the charged multiplicities in B, C and light quark events from Z0 decays",
abstract = "Average charged multiplicities have been measured separately in b, c and light quark (u, d, s) events from Z0 decays measured in the SLD experiment. Impact parameters of charged tracks were used to select enriched samples of b and light quark events, and reconstructed charmed mesons were used to select c quark events. We measured the charged multiplicities: nuds = 20.21 ± 0.10 (stat.) ± 0.22 (syst.), nc = 21.28 ± 0.46 (stat.)+0−04136 (syst.) and nb = 23.14 ± 0.10 (stat.)+0−03837 (syst.), from which we derived the differences between the total average charged multiplicities of c or b quark events and light quark events: ∆nc = 1.07 ± 0.47 (stat.)+0−03630 (syst.) and ∆nb = 2.93 ± 0.14 (stat.)+0−03029 (syst.). We compared these measurements with those at lower center-of-mass energies and with perturbative QCD predictions. These combined results are in agreement with the QCD expectations and disfavor the hypothesis of flavor-independent fragmentation.",
author = "{The SLD Collaboration} and K. Abe and K. Abe and I. Abt and T. Akagi and Allen, {N. J.} and Ash, {W. W.} and D. Aston and Baird, {K. G.} and C. Baltay and Band, {H. R.} and Barakat, {M. B.} and G. Baranko and O. Bardon and T. Barklow and Bazarko, {A. O.} and R. Ben-David and Benvenuti, {A. C.} and Bilei, {G. M.} and D. Bisello and G. Blaylock and Bogart, {J. R.} and B. Bolen and T. Bolton and Bower, {G. R.} and Brau, {J. E.} and M. Breidenbach and Bugg, {W. M.} and D. Burke and Burnett, {T. H.} and Burrows, {P. N.} and W. Busza and A. Calcaterra and Caldwell, {D. O.} and D. Calloway and B. Camanzi and M. Carpinelli and R. Cassell and R. Castaldi and A. Castro and M. Cavalli-Sforza and A. Chou and E. Church and Cohn, {H. O.} and Coller, {J. A.} and V. Cook and R. Cotton and Cowan, {R. F.} and Coyne, {D. G.} and T. Nagamine and F. Suekane",
note = "Funding Information: We thank the personnel of the SLAC accelerator departmenta nd the technical staffs of our collaborating institutions for their outstandinge fforts on our behalf. This work was supported by Departmento f Energy contracts: DE-FG02-9 1E R40676 (BU) , DE-FG03-9 1E R406 18 (UCSB) , DE-FG03-92ER40689 (UCSC), DE-FG03-93ER40788 (CSU), DE-FG02-9 1E R40672 (Colorado), DE-FG02-9 1E R40677 (Illinois), DE-ACO3-76SF00098 (LBL), DE-FGO%-92ER407 15 (Massachusetts),D E-AC02-76ER03069 (MIT), DE-FG06-85ER40224 (Oregon), DE-AC03-76SFOOS1 5 ( SLAC) , DE-FG05-9 lER40627 (Tennessee), DE-FGO2-95ER40896 (Wisconsin), DE-FG02-92ER40704 (Yale) ; National Science Foundation grants: PHY-91-13428 (UCSC), PHY-89-21320 (Columbia), PHY-92-04239 (Cincinnati), PHY-88-17930 (Rutgers), PHY-88-19316 (Vanderbilt), PHY-92-03212 (Washington); the UK Science and Engineering Research Council (Brunel and RAL); Publisher Copyright: {\textcopyright} 2021 Science Press. All rights reserved.",
year = "1996",
month = oct,
day = "3",
doi = "10.1016/0370-2693(96)01025-8",
language = "English",
volume = "386",
pages = "475--485",
journal = "Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics",
issn = "0370-2693",
publisher = "Elsevier",
number = "1-4",
}