Baryon number fluctuations induced by hadronic interactions at low temperature and large chemical potential
| Autor: | Shao, Guo-yun, Gao, Xue-yan, He, Wei-bo |
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| Rok vydání: | 2020 |
| Předmět: | |
| Zdroj: | Phys. Rev. D 101, 074029 (2020) |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1103/PhysRevD.101.074029 |
| Popis: | We investigate the density fluctuations induced by hadronic interactions at low temperatures and large chemical potentials after the hadronization of quark-gluon plasma~(QGP). We analyze the structures of net-baryon number kurtosis and skewness and elaborate on their relations with the nuclear liquid-gas~(LG) phase transition and hadronic interactions above the critical temperature. Combining with the relevant experimental projects at RHIC/NICA/FAIR/J-PARC/HIAF with collision energies from $200\,$GeV to $1.8\,$GeV, we propose a double-peak structure of kurtosis (skewness) as a function of collision energy, which can be taken to identify the chiral phase transition and the nuclear liquid-gas phase transition. In particular, the fluctuation distributions at low temperatures provide a new method to explore hadronic interactions and nuclear liquid-gas transition. Comment: 14 pages, 6 figures, to be published in Phys. Rev. D |
| Databáze: | arXiv |
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