Jet Fragmentation via Recombination of Parton Showers
Kyong Chol Han, Rainer J Fries, and Che Ming Ko
TL;DR
This paper investigates hadron production in jets using quark recombination applied to jet shower partons, comparing results with PYTHIA's string fragmentation to understand hadron spectra in high-energy collisions.
Contribution
It introduces a recombination-based approach to jet fragmentation, incorporating non-perturbative effects and resonance decays, providing an alternative to traditional string fragmentation models.
Findings
Reproduces pion, kaon, and proton spectra similar to PYTHIA
Incorporates resonance decays into hadron spectra
Uses augmented jet showers from PYTHIA with non-perturbative effects
Abstract
We study hadron production in jets by applying quark recombination to jet shower partons. With the jet showers obtained from PYTHIA and augmented by additional non-perturbative effects, we compute hadron spectra in e+ + e-collisions at sqrt(s)=200 GeV. Including contributions from resonance decays, we find that the resulting transverse momentum spectra for pions, kaons, and protons reproduce reasonably those from the string fragmentation as implemented in PYTHIA.
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