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

STAR Collaboration

doi:10.1016/j.physletb.2018.07.066

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

STAR Collaboration

AGH University of Krakow
Ohio State University
University of Kentucky
Joint Institute for Nuclear Research
Kent State University
Brookhaven National Laboratory
Panjab University
Variable Energy Cyclotron Centre
Stony Brook University
Alikhanov Institute for Theoretical and Experimental Physics
Moscow Engineering Physics Institute
Texas A&M University
University of Tsukuba
Tsinghua University
Central China Normal University
National Institute of Science Education and Research
University of California at Riverside
University of Houston
University of Jammu
University of Texas at Austin
Czech Technical University in Prague
Czech Academy of Sciences
Rice University
Lehigh University
Yale University
University of California at Davis
Chinese Academy of Sciences
CAS - Institute of Modern Physics
University of Science and Technology of China
Creighton University
Lawrence Berkeley National Laboratory
University of California at Berkeley
Shandong University
Institute for High Energy Physics
Pennsylvania State University
Lamar University
University of California at Los Angeles
Wayne State University
University of Illinois at Chicago
Southern Connecticut State University
Purdue University
Valparaiso University
Warsaw University of Technology
Temple University
National Cheng Kung University
Indiana University Bloomington
Goethe University Frankfurt
Argonne National Laboratory
Institute of Physics Bhubaneswar
Pusan National University
Institute of Nuclear Physics PAN
Indian Institute of Technology Bombay
Max Planck Institute for Physics (Werner Heisenberg Institute)
Michigan State University
World Laboratory for Cosmology and Particle Physics (WLCAPP)
United States Naval Academy

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131 Citas (Scopus)

Resumen

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 s_NN=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.

Idioma original	Inglés
Páginas (desde-hasta)	551-560
Número de páginas	10
Publicación	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volumen	785
DOI	https://doi.org/10.1016/j.physletb.2018.07.066
Estado	Publicada - 10 oct 2018
Publicado de forma externa	Sí

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title = "Collision energy dependence of moments of net-kaon multiplicity distributions at RHIC",

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.",

author = "L. Adamczyk and Adams, \{J. R.\} and Adkins, \{J. K.\} and G. Agakishiev and S. Kabana and \{STAR Collaboration\}",

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doi = "10.1016/j.physletb.2018.07.066",

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T1 - Collision energy dependence of moments of net-kaon multiplicity distributions at RHIC

AU - Adamczyk, L.

AU - Adams, J. R.

AU - Adkins, J. K.

AU - Agakishiev, G.

AU - Kabana, S.

AU - STAR Collaboration

PY - 2018/10/10

Y1 - 2018/10/10

N2 - 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.

AB - 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.

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