The partonic origin of multiplicity scaling in heavy and light flavor jets

Abstract

It has recently been shown that a KNO-like scaling is fulfilled inside the jets, which indicates that the KNO scaling is violated by complex vacuum-QCD processes outside the jet development, such as single and double parton scattering or softer multiple-parton interactions. In the current work we investigated the scaling properties of heavy-flavor jets using Monte-Carlo simulations. We found that while jets from leading-order flavor-creation processes exhibit a flavor-dependent pattern, heavy-flavor jets from production in the parton shower follow the inclusive-jet pattern. This suggests that the KNO-like scaling is driven by initial hard parton production and not by processes in the later stages of the reaction.

References in corpus (14)

• The anti-k_t jet clustering algorithm
• An Introduction to PYTHIA 8.2
• Identification of b-quark jets with the CMS experiment
• Interleaved Parton Showers and Tuning Prospects
• Heavy quarks and jets as probes of the QGP
• Direct observation of the dead-cone effect in QCD
• Measurement of charged pion, kaon, and proton production in proton-proton collisions at sqrt(s) = 13 TeV
• Multiplicity Distribution and Mechanisms of the High-Energy Hadron Collisions
• Jet and underlying event properties as a function of particle multiplicity in proton-proton collisions at sqrt(s) = 7 TeV
• Disentangling Heavy Flavor at Colliders
• KNO-like scaling within a jet in proton--proton collisions at LHC energies
• Modification of jet structure in high-multiplicity pp collisions due to multiple-parton interactions and observing a multiplicity-independent characteristic jet size
• Renormalization group approach to multiparticle density fluctuations
• Jet Structure Studies in Small Systems