The internal structure of jets at colliders: light and heavy quark inclusive hadronic distributions

TL;DR

This paper investigates the internal structure of jets at colliders, focusing on charged hadron multiplicities in heavy quark jets and transverse momentum distributions, highlighting the impact of quark mass effects and comparing predictions with experimental data.

Contribution

It introduces the dead cone effect into QCD evolution equations to accurately model heavy quark jet multiplicities and compares these predictions with collider data.

Findings

Heavy quark jets have significantly lower multiplicities due to the dead cone effect.

The transverse momentum distributions of light quark jets align well with CDF data.

Mass effects are crucial for precise modeling of jet internal structure.

Abstract

In this paper, we report our results on charged hadron multiplicities of heavy quark initiated jets produced in high energy collisions. After implementing the so-called dead cone effect in QCD evolution equations, we find that the average multiplicity decreases significantly as compared to the massless case. Finally, we discuss on the transverse momentum distribution of light quark initiated jets and emphasize on the comparison between our predictions and CDF data.