TY - JOUR
T1 - Analysis of Kaon fluctuations from the beam energy scan at RHIC
AU - Ratti, Claudia
AU - Bellwied, Rene
AU - Noronha-Hostler, Jacquelyn
AU - Parotto, Paolo
AU - Portillo Vazquez, Israel
AU - Stafford, Jamie M.
N1 - Funding Information:
This material is based upon work supported by the National Science Foundation under grants no. PHY-1654219 and OAC-1531814 and by the U.S. Department of Energy, Office of Science, Office of Nuclear Physics, within the framework of the Beam Energy Scan Theory (BEST) Topical Collaboration. We also acknowledge the support from the Center of Advanced Computing and Data Systems at the University of Houston. The work of R. B. is supported through DOE grant DEFG02-07ER41521.
Publisher Copyright:
© 2018
PY - 2019/2
Y1 - 2019/2
N2 - We analyze the recent STAR collaboration results on net-kaon fluctuations in the framework of the Hadron Resonance Gas (HRG) model. Our purpose is to extract the freeze-out temperature and chemical potential as functions of the collision energy. In our HRG model, we use the complete hadron spectrum from the latest PDG list. These results are compared to the freeze-out parameters obtained from a combined analysis of net-electric charge and net-proton fluctuations. At the highest collision energies, kaons need about 10-15 MeV higher freeze-out temperatures than the light hadrons. Predictions for moment ratios of the net-Lambda multiplicity distribution are obtained along the freeze-out lines. Lambda fluctuations are sensitive to the difference in the freeze-out temperatures observed in our analysis.
AB - We analyze the recent STAR collaboration results on net-kaon fluctuations in the framework of the Hadron Resonance Gas (HRG) model. Our purpose is to extract the freeze-out temperature and chemical potential as functions of the collision energy. In our HRG model, we use the complete hadron spectrum from the latest PDG list. These results are compared to the freeze-out parameters obtained from a combined analysis of net-electric charge and net-proton fluctuations. At the highest collision energies, kaons need about 10-15 MeV higher freeze-out temperatures than the light hadrons. Predictions for moment ratios of the net-Lambda multiplicity distribution are obtained along the freeze-out lines. Lambda fluctuations are sensitive to the difference in the freeze-out temperatures observed in our analysis.
KW - Heavy-ion collisions
KW - QCD thermodynamics
KW - Quark-gluon plasma
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U2 - 10.1016/j.nuclphysa.2018.10.008
DO - 10.1016/j.nuclphysa.2018.10.008
M3 - Article
AN - SCOPUS:85060126076
VL - 982
SP - 799
EP - 802
JO - Nuclear Physics, Section A
JF - Nuclear Physics, Section A
SN - 0375-9474
ER -