Heavy quark flavour dependence of multiparticle production in QCD jets

Abstract

After inserting the heavy quark mass dependence into QCD partonic evolution equations, we determine the mean charged hadron multiplicity and second multiplicity correlators of jets produced in high energy collisions. We thereby extend the so-called dead cone effect to the phenomenology of multiparticle production in QCD jets and find that the average multiplicity of heavy-quark initiated jets decreases significantly as compared to the massless case, even taking into account the weak decay products of the leading primary quark. We emphasize the relevance of our study as a complementary check of $b$-tagging techniques at hadron colliders like the Tevatron and the LHC.

Version revised, accepted for publication in JHEP, 21 pages and 7 figures

References in corpus (11)

• Dispelling the N^3 myth for the Kt jet-finder
• Pileup subtraction using jet areas
• The Catchment Area of Jets
• The Physics of Glueballs
• Hadron Multiplicities
• Tests of Quantum Chromo Dynamics at e^+e^- Colliders
• Multiplicity Difference between Heavy and Light Quark Jets Revisited
• Prospects of searching for (un)particles from Hidden Sectors using rapidity correlations in multiparticle production at the LHC
• Resummed jet rates for $e^{+}{e}^{-}$ annihilation into massive quarks
• Medium-modified evolution of multiparticle production in jets in heavy-ion collisions
• Multiple hadron production in e+e- annihilation induced by heavy primary quarks. New analysis

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