Spherocity study for e^{+}e^{-} Fragmentation Functions using Pythia MC generator

TL;DR

This paper investigates electron-positron jet fragmentation functions using Pythia simulations, focusing on how event shape spherocity influences the fragmentation process in a non-perturbative QCD context.

Contribution

It introduces a spherocity-based analysis of jet fragmentation functions in e+e- collisions within the Pythia framework, highlighting the role of event shape in fragmentation studies.

Findings

Fragmentation functions depend on spherocity intervals.

Jet reconstruction varies with event shape parameters.

Results provide insights into non-perturbative QCD processes.

Abstract

The Fragmentation Functions is one of the non-perturbative components of the QCD factorization theorem. They represents the probability of a parton carrying a fraction z of momentum to form into a particular kind of hadron. In this work, we study the jet fragmentation functions in the collisions between electrons and positrons. The jets where identified with Fastjet for different p_{Tch jet} intervals. The intervals and the final jets were reconstructed by means of the event shape T separation using spherocity variable, the study is performed under Pythia Monte Carlo event generator framework.