Investigating late-stage particle production in pp collisions with balance functions
Manea, Alexandru ; Pruneau, Claude ; Brandibur, Diana Catalina ; Danu, Andrea ; Dobrin, Alexandru F. LU ; Gonzalez, Victor and Basu, Sumit LU
(2025)
In European Physical Journal C
85(3).
- Abstract
Balance functions have been regarded in the past as a method of investigating the late-stage hadronization found in the presence of a strongly-coupled medium. They are also used to constrain mechanisms of particle production in large and small collision systems. Charge balance functions for inclusive and identified particle pairs are reported as a function of charged particle multiplicity in proton–proton collisions simulated with the PYTHIA8 and the EPOS4 models. The charge balance functions of inclusive, pion, kaon, and proton pairs exhibit amplitudes and shapes that depend on particle species and differ significantly in the two models due to the different particle production mechanisms implemented in PYTHIA and EPOS. The shapes and... (More)
Balance functions have been regarded in the past as a method of investigating the late-stage hadronization found in the presence of a strongly-coupled medium. They are also used to constrain mechanisms of particle production in large and small collision systems. Charge balance functions for inclusive and identified particle pairs are reported as a function of charged particle multiplicity in proton–proton collisions simulated with the PYTHIA8 and the EPOS4 models. The charge balance functions of inclusive, pion, kaon, and proton pairs exhibit amplitudes and shapes that depend on particle species and differ significantly in the two models due to the different particle production mechanisms implemented in PYTHIA and EPOS. The shapes and amplitudes also evolve with multiplicity in both models. In addition, the evolution of the longitudinal rms width and that of balance functions integrals with multiplicity (and average transverse momentum) feature significant differences in the two models.
(Less)
- author
- Manea, Alexandru
; Pruneau, Claude
; Brandibur, Diana Catalina
; Danu, Andrea
; Dobrin, Alexandru F.
LU
; Gonzalez, Victor
and Basu, Sumit
LU
- organization
- publishing date
- 2025-03
- type
- Contribution to journal
- publication status
- published
- subject
- in
- European Physical Journal C
- volume
- 85
- issue
- 3
- article number
- 323
- publisher
- Springer Nature
- external identifiers
-
- scopus:105001169535
- ISSN
- 1434-6044
- DOI
- 10.1140/epjc/s10052-025-14049-5
- language
- English
- LU publication?
- yes
- additional info
- Publisher Copyright: © The Author(s) 2025.
- id
- bdb20fe3-b004-4d8c-bcef-34366a63e50b
- date added to LUP
- 2025-12-05 14:27:49
- date last changed
- 2025-12-05 14:29:06
@article{bdb20fe3-b004-4d8c-bcef-34366a63e50b,
abstract = {{<p>Balance functions have been regarded in the past as a method of investigating the late-stage hadronization found in the presence of a strongly-coupled medium. They are also used to constrain mechanisms of particle production in large and small collision systems. Charge balance functions for inclusive and identified particle pairs are reported as a function of charged particle multiplicity in proton–proton collisions simulated with the PYTHIA8 and the EPOS4 models. The charge balance functions of inclusive, pion, kaon, and proton pairs exhibit amplitudes and shapes that depend on particle species and differ significantly in the two models due to the different particle production mechanisms implemented in PYTHIA and EPOS. The shapes and amplitudes also evolve with multiplicity in both models. In addition, the evolution of the longitudinal rms width and that of balance functions integrals with multiplicity (and average transverse momentum) feature significant differences in the two models.</p>}},
author = {{Manea, Alexandru and Pruneau, Claude and Brandibur, Diana Catalina and Danu, Andrea and Dobrin, Alexandru F. and Gonzalez, Victor and Basu, Sumit}},
issn = {{1434-6044}},
language = {{eng}},
number = {{3}},
publisher = {{Springer Nature}},
series = {{European Physical Journal C}},
title = {{Investigating late-stage particle production in pp collisions with balance functions}},
url = {{http://dx.doi.org/10.1140/epjc/s10052-025-14049-5}},
doi = {{10.1140/epjc/s10052-025-14049-5}},
volume = {{85}},
year = {{2025}},
}