Baryon enhancement in jets

Fuente: arXiv
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Main Authors: Ortiz, Antonio, Vertesi, Robert
Format: Preprint
Published: 2026
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author Ortiz, Antonio
Vertesi, Robert
author_facet Ortiz, Antonio
Vertesi, Robert
contents The enhancement of the baryon production relative to mesons in small-collision systems is considered a breakthrough result of the Large Hadron Collider since a similar effect in heavy-ion collisions is understood by invoking the formation of the strongly-interacting quark--gluon plasma. In this letter, a baryon enhancement is reported for $p_{\rm T}^{\rm ch,\, jet}>15$\,GeV/$c$ jets produced in pp collisions at $\sqrt{s}=13$\,TeV simulated with PYTHIA8. The effect can be explained as a transition between quark-initiated jets (low jet multiplicities) to gluon-initiated jets (high jet multiplicities). The present result challenges the interpretation about the multiplicity dependence of the baryon enhancement in terms of collective expansion of the medium and quark recombination.
format Preprint
id arxiv_https___arxiv_org_abs_2604_23189
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle Baryon enhancement in jets
Ortiz, Antonio
Vertesi, Robert
High Energy Physics - Phenomenology
The enhancement of the baryon production relative to mesons in small-collision systems is considered a breakthrough result of the Large Hadron Collider since a similar effect in heavy-ion collisions is understood by invoking the formation of the strongly-interacting quark--gluon plasma. In this letter, a baryon enhancement is reported for $p_{\rm T}^{\rm ch,\, jet}>15$\,GeV/$c$ jets produced in pp collisions at $\sqrt{s}=13$\,TeV simulated with PYTHIA8. The effect can be explained as a transition between quark-initiated jets (low jet multiplicities) to gluon-initiated jets (high jet multiplicities). The present result challenges the interpretation about the multiplicity dependence of the baryon enhancement in terms of collective expansion of the medium and quark recombination.
title Baryon enhancement in jets
topic High Energy Physics - Phenomenology
url https://arxiv.org/abs/2604.23189