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arXiv · 1709.05178

Isospin effect on baryon and charge fluctuations from the pNJL model

He Liu·Jun Xu
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Abstract

We have studied the possible isospin corrections on the skewness and kurtosis of net-baryon and net-charge fluctuations in the isospin asymmetric matter formed in relativistic heavy-ion collisions at RHIC-BES energies, based on a 3-flavor polyakov-looped Nambu-Jona-Lasinio model. With typical scalar-isovector and vector-isovector couplings leading to the splitting of $u$ and $d$ quark chiral phase transition boundaries and critical points, we have observed dramatic isospin effects on the susceptibilities, especially those of net-charge fluctuations. Reliable experimental measurements at even lower collision energies are encouraged to confirm the observed isospin effects.

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He Liu, Jun Xu. 2017-09-15. Isospin effect on baryon and charge fluctuations from the pNJL model. https://doi.org/10.3390/universe7010006

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