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Multiplicity dependence of π , K, and p production in pp collisions at √s=13 TeV

Acharya S.
•
Adamova D.
•
Adler A.
altro
Zurlo N.
2020
  • journal article

Periodico
THE EUROPEAN PHYSICAL JOURNAL. C, PARTICLES AND FIELDS
Abstract
This paper presents the measurements of π±, K ±, p and p ̄ transverse momentum (pT) spectra as a function of charged-particle multiplicity density in proton–proton (pp) collisions at s=13TeV with the ALICE detector at the LHC. Such study allows us to isolate the center-of-mass energy dependence of light-flavour particle production. The measurements reported here cover a pT range from 0.1 to 20 GeV / c and are done in the rapidity interval | y| < 0.5. The pT-differential particle ratios exhibit an evolution with multiplicity, similar to that observed in pp collisions at s=7TeV, which is qualitatively described by some of the hydrodynamical and pQCD-inspired models discussed in this paper. Furthermore, the pT-integrated hadron-to-pion yield ratios measured in pp collisions at two different center-of-mass energies are consistent when compared at similar multiplicities. This also extends to strange and multi-strange hadrons, suggesting that, at LHC energies, particle hadrochemistry scales with particle multiplicity the same way under different collision energies and colliding systems.
DOI
10.1140/epjc/s10052-020-8125-1
WOS
WOS:000559326900002
Archivio
http://hdl.handle.net/11368/2971460
info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85088962855
https://link.springer.com/article/10.1140/epjc/s10052-020-8125-1
Diritti
open access
license:creative commons
license uri:http://creativecommons.org/licenses/by/4.0/
FVG url
https://arts.units.it/bitstream/11368/2971460/1/EPJ_C_80(2020)693_1-20.pdf
Soggetti
  • LHC

  • large pT

Scopus© citazioni
18
Data di acquisizione
Jun 14, 2022
Vedi dettagli
Web of Science© citazioni
42
Data di acquisizione
Mar 23, 2024
Visualizzazioni
2
Data di acquisizione
Apr 19, 2024
Vedi dettagli
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