Speaker
Description
I discuss the fluctuations of the net-baryon number near the liquid-gas and chiral phase transitions. I use the parity doublet model to investigate the qualitative properties and systematics of the first- to fourth-order cumulants and their ratios. I show that the fluctuations of the positive-parity (e.g. protons) and negative-parity baryons do not qualitatively reflect the fluctuations of the total net-baryon number density at the phase boundaries of the liquid-gas and chiral phase transitions. I qualitatively compare the factorial cumulants for the net-proton and net-baryon number and point to the importance of the non-trivial correlations between various baryon species, in particular to the correlations between protons and neutrons as well as positive- and negative-parity baryonic chiral partners.
References:
- M. Marczenko, K. Redlich, C. Sasaki, arXiv:2410.21746 [nucl-th]
- M. Marczenko, Phys. Rev. D 110 (2024) 1, 014018
- V. Koch, M. Marczenko, K. Redlich, C. Sasaki, Phys.Rev.D 109 (2024) 1, 014033
