Average charged multiplicity of events containing heavy quarks ine+e− | Zendy

B. A. Schumm | Zendy; Yuri L. Dokshitzer | Zendy; V. A. Khoze | Zendy; D. S. Koetke | Zendy

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Average charged multiplicity of events containing heavy quarks ine+e−

Author(s) -

B. A. Schumm,

Yuri L. Dokshitzer,

V. A. Khoze,

D. S. Koetke

Publication year - 1992

Publication title -

physical review letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 3.688

H-Index - 673

eISSN - 1079-7114

pISSN - 0031-9007

DOI - 10.1103/physrevlett.69.3025

Subject(s) - physics , annihilation , particle physics , quantum chromodynamics , multiplicity (mathematics) , perturbative qcd , quark , energy (signal processing) , electron–positron annihilation , nuclear physics , hadron , quantum mechanics , geometry , mathematics

We present the perturbative QCD results for heavy quark event multiplicities in {ital e}{sup +}{ital e{minus}} annihilation, which provide that the difference {delta}{sub {ital Q}{ital l}} between heavy and light quark event multiplicities at the same c.m.-systems (c.m.s.) energy should be a calculable constant, independent of c.m.s. energy. Published data on heavy quark event multiplicities are presented in this light, and are consistent with the energy independence of the multiplicity difference. Averaging over c.m.s. energy, we find that {delta}{sub {ital b}{ital l}}=4.3{plus minus}0.9 and {delta}{sub {ital c}{ital l}}=2.3{plus minus}1.0 tracks, while the perturbative QCD expectations are 5.5{plus minus}0.8 and 1.7{plus minus}0.5 tracks, respectively.

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