Analysis of Kaon fluctuations from the beam energy scan at RHIC
Abstract
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.
- Authors:
-
[1];
[2];
- Univ. of Houston, TX (United States)
- Rutgers Univ., Piscataway, NJ (United States)
- Publication Date:
- Research Org.:
- Univ. of Houston, TX (United States); Univ. of Illinois at Urbana-Champaign, IL (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Nuclear Physics (NP); National Science Foundation (NSF)
- OSTI Identifier:
- 1609826
- Alternate Identifier(s):
- OSTI ID: 1836789
- Grant/Contract Number:
- FG02-07ER41521; SC0020633; PHY-1654219; OAC-1531814
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Nuclear Physics. A
- Additional Journal Information:
- Journal Volume: 982; Journal Issue: C; Conference: XXVII. International Conference on Ultrarelativistic Nucleus-Nucleus Collisions (Quark Matter 2018), Venezia (Italy), 13-19 May 2018; Journal ID: ISSN 0375-9474
- Publisher:
- Elsevier
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; Physics; Heavy-ion collisions; QCD thermodynamics; Quark-gluon plasma; 73 NUCLEAR PHYSICS AND RADIATION PHYSICS
Citation Formats
Ratti, Claudia, Bellwied, Rene, Noronha-Hostler, Jacquelyn, Parotto, Paolo, Portillo Vazquez, Israel, and Stafford, Jamie M. Analysis of Kaon fluctuations from the beam energy scan at RHIC. United States: N. p., 2019.
Web. doi:10.1016/j.nuclphysa.2018.10.008.
Ratti, Claudia, Bellwied, Rene, Noronha-Hostler, Jacquelyn, Parotto, Paolo, Portillo Vazquez, Israel, & Stafford, Jamie M. Analysis of Kaon fluctuations from the beam energy scan at RHIC. United States. https://doi.org/10.1016/j.nuclphysa.2018.10.008
Ratti, Claudia, Bellwied, Rene, Noronha-Hostler, Jacquelyn, Parotto, Paolo, Portillo Vazquez, Israel, and Stafford, Jamie M. Tue .
"Analysis of Kaon fluctuations from the beam energy scan at RHIC". United States. https://doi.org/10.1016/j.nuclphysa.2018.10.008. https://www.osti.gov/servlets/purl/1609826.
@article{osti_1609826,
title = {Analysis of Kaon fluctuations from the beam energy scan at RHIC},
author = {Ratti, Claudia and Bellwied, Rene and Noronha-Hostler, Jacquelyn and Parotto, Paolo and Portillo Vazquez, Israel and Stafford, Jamie M.},
abstractNote = {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.},
doi = {10.1016/j.nuclphysa.2018.10.008},
journal = {Nuclear Physics. A},
number = C,
volume = 982,
place = {United States},
year = {Tue Jan 22 00:00:00 EST 2019},
month = {Tue Jan 22 00:00:00 EST 2019}
}
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