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Collision energy dependence of moments of net-kaon multiplicity distributions at RHIC

Adamczyk, L.
•
Adams, J. R.
•
Adkins, J. K.
altro
Zyzak, M.
2018
  • journal article

Periodico
PHYSICS LETTERS. SECTION B
Abstract
Fluctuations of conserved quantities such as baryon number, charge, and strangeness are sensitive to the correlation length of the hot and dense matter created in relativistic heavy-ion collisions and can be used to search for the QCD critical point. We report the first measurements of the moments of net-kaon multiplicity distributions in Au+Au collisions at sNN=7.7 , 11.5, 14.5, 19.6, 27, 39, 62.4, and 200 GeV. The collision centrality and energy dependence of the mean ( M ), variance ( σ2 ), skewness ( S ), and kurtosis ( κ ) for net-kaon multiplicity distributions as well as the ratio σ2/M and the products Sσ and κσ2 are presented. Comparisons are made with Poisson and negative binomial baseline calculations as well as with UrQMD, a transport model (UrQMD) that does not include effects from the QCD critical point. Within current uncertainties, the net-kaon cumulant ratios appear to be monotonic as a function of collision energy.
DOI
10.1016/j.physletb.2018.07.066
WOS
WOS:000447424000077
Archivio
http://hdl.handle.net/11368/2941640
info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85053450515
https://www.sciencedirect.com/science/article/pii/S0370269318306403
Diritti
open access
license:creative commons
license uri:http://creativecommons.org/licenses/by/4.0/
FVG url
https://arts.units.it/bitstream/11368/2941640/1/1-s2.0-S0370269318306403-main (1).pdf
Soggetti
  • Nuclear and High Ener...

  • kaon

  • heavy ion

  • STAR

  • RHIC

Scopus© citazioni
86
Data di acquisizione
Jun 14, 2022
Vedi dettagli
Web of Science© citazioni
92
Data di acquisizione
Mar 27, 2024
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