Journal
PHYSICS LETTERS B
Volume 777, Issue -, Pages 125-130Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.physletb.2017.12.001
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Funding
- U.S. Department of Energy [DE-SC0012704]
- National Science Center, Poland, under grant Polonez from European Union's Horizon 2020 research and innovation programme under the Marie Sklodowska-Curie grant [DEC-2015/19/P/ST2/03333, 665778]
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We discuss the role of repulsive baryon-baryon interactions in a hadron gas using relativistic virial expansion and repulsive mean field approaches. The fluctuations of the baryon number as well as strangeness-baryon correlations are calculated in the hadron resonance gas with repulsive interactions and compared with the recent lattice QCD results. In particular, we calculate the difference between the second and fourth order fluctuations and correlations of baryon number and strangeness, that have been proposed as probes of deconfinement. We show that for not too high temperatures these differences could be understood in terms of repulsive interactions. (c) 2017 The Author(s). Published by Elsevier B.V.
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