Skip to main content

Lund University Publications

LUND UNIVERSITY LIBRARIES

Mixed-species charge and baryon balance functions studies with PYTHIA

Pruneau, Claude ; Basu, Sumit LU orcid ; Gonzalez, Victor ; Hanley, Brian ; Marin, Ana ; Dobrin, Alexandru F. LU and Manea, Alexandru (2024) In Physical Review C 109(6).
Abstract

Mixed species charge and baryon balance functions are computed based on proton-proton (pp) collisions simulated with the PYTHIA8 model. Simulations are performed with selected values of the collision energy s and the Monash tune and the ropes and shoving modes of PYTHIA8 to explore whether such measurements provide useful new information and constraints on mechanisms of particle production in pp collisions. Charge balance functions are studied based on mixed pairs of pions, kaons, and protons, whereas baryon balance functions are computed for mixed low mass strange and nonstrange baryons. Both charge and baryon balance functions of mixed particle pairs feature shapes and amplitudes that sensitively depend on the particle considered... (More)

Mixed species charge and baryon balance functions are computed based on proton-proton (pp) collisions simulated with the PYTHIA8 model. Simulations are performed with selected values of the collision energy s and the Monash tune and the ropes and shoving modes of PYTHIA8 to explore whether such measurements provide useful new information and constraints on mechanisms of particle production in pp collisions. Charge balance functions are studied based on mixed pairs of pions, kaons, and protons, whereas baryon balance functions are computed for mixed low mass strange and nonstrange baryons. Both charge and baryon balance functions of mixed particle pairs feature shapes and amplitudes that sensitively depend on the particle considered owing largely to the particle production mechanisms implemented in PYTHIA. The evolution of balance functions integrals with the longitudinal width of the acceptance are presented and one finds that sums of such integrals for a given reference particle obey expected sum rules for both charge and baryon balance functions. Additionally, both types of balance functions are found to evolve in shape and amplitude with increasing collision energy s and the PYTHIA tunes considered.

(Less)
Please use this url to cite or link to this publication:
author
; ; ; ; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Physical Review C
volume
109
issue
6
article number
064913
publisher
American Physical Society
external identifiers
  • scopus:85196323955
ISSN
2469-9985
DOI
10.1103/PhysRevC.109.064913
language
English
LU publication?
yes
id
94506381-13f4-4fa2-91b8-b09055a7ecf1
date added to LUP
2024-08-21 12:19:57
date last changed
2024-08-21 12:19:57
@article{94506381-13f4-4fa2-91b8-b09055a7ecf1,
  abstract     = {{<p>Mixed species charge and baryon balance functions are computed based on proton-proton (pp) collisions simulated with the PYTHIA8 model. Simulations are performed with selected values of the collision energy s and the Monash tune and the ropes and shoving modes of PYTHIA8 to explore whether such measurements provide useful new information and constraints on mechanisms of particle production in pp collisions. Charge balance functions are studied based on mixed pairs of pions, kaons, and protons, whereas baryon balance functions are computed for mixed low mass strange and nonstrange baryons. Both charge and baryon balance functions of mixed particle pairs feature shapes and amplitudes that sensitively depend on the particle considered owing largely to the particle production mechanisms implemented in PYTHIA. The evolution of balance functions integrals with the longitudinal width of the acceptance are presented and one finds that sums of such integrals for a given reference particle obey expected sum rules for both charge and baryon balance functions. Additionally, both types of balance functions are found to evolve in shape and amplitude with increasing collision energy s and the PYTHIA tunes considered.</p>}},
  author       = {{Pruneau, Claude and Basu, Sumit and Gonzalez, Victor and Hanley, Brian and Marin, Ana and Dobrin, Alexandru F. and Manea, Alexandru}},
  issn         = {{2469-9985}},
  language     = {{eng}},
  number       = {{6}},
  publisher    = {{American Physical Society}},
  series       = {{Physical Review C}},
  title        = {{Mixed-species charge and baryon balance functions studies with PYTHIA}},
  url          = {{http://dx.doi.org/10.1103/PhysRevC.109.064913}},
  doi          = {{10.1103/PhysRevC.109.064913}},
  volume       = {{109}},
  year         = {{2024}},
}