TY - JOUR
T1 - Collision energy dependence of moments of net-kaon multiplicity distributions at RHIC
AU - STAR Collaboration
AU - Adamczyk, L.
AU - Adams, J. R.
AU - Adkins, J. K.
AU - Agakishiev, G.
AU - Aggarwal, M. M.
AU - Ahammed, Z.
AU - Ajitanand, N. N.
AU - Alekseev, I.
AU - Anderson, D. M.
AU - Aoyama, R.
AU - Aparin, A.
AU - Arkhipkin, D.
AU - Aschenauer, E. C.
AU - Ashraf, M. U.
AU - Attri, A.
AU - Averichev, G. S.
AU - Bai, X.
AU - Bairathi, V.
AU - Barish, K.
AU - Behera, A.
AU - Bellwied, R.
AU - Bhasin, A.
AU - Bhati, A. K.
AU - Bhattarai, P.
AU - Bielcik, J.
AU - Bielcikova, J.
AU - Bland, L. C.
AU - Bordyuzhin, I. G.
AU - Bouchet, J.
AU - Brandenburg, J. D.
AU - Brandin, A. V.
AU - Brown, D.
AU - Bunzarov, I.
AU - Butterworth, J.
AU - Caines, H.
AU - Calderón de la Barca Sánchez, M.
AU - Campbell, J. M.
AU - Cebra, D.
AU - Chakaberia, I.
AU - Chaloupka, P.
AU - Chang, Z.
AU - Chankova-Bunzarova, N.
AU - Chatterjee, A.
AU - Chattopadhyay, S.
AU - Chen, J. H.
AU - Chen, X.
AU - Chen, X.
AU - Cheng, J.
AU - Cherney, M.
AU - Yang, Y.
N1 - Publisher Copyright:
© 2018 The Author
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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U2 - 10.1016/j.physletb.2018.07.066
DO - 10.1016/j.physletb.2018.07.066
M3 - Article
AN - SCOPUS:85053450515
SN - 0370-2693
VL - 785
SP - 551
EP - 560
JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
ER -