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arXiv · 2104.12971

Isospin effect on quark matter instabilities

Lu-Meng Liu·Wen-Hao Zhou·Jun Xu·Guang-Xiong Peng
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Abstract

We have studied the mechanical and chemical instabilities as well as the liquid-gas-like phase transition in isospin asymmetric quark matter based on the NJL and the pNJL model. Areas of the mechanical instability region and the liquid-gas coexistence region are seen to be enlarged with a larger quark matter symmetry energy or in the presence of strange quarks. Our study shows that the light cluster yield ratio observed in relativistic heavy-ion collisions may not be affected much by the uncertainties of the isospin effect, and favors a smooth hadron-quark phase transition in compact stars as well as their mergers.

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Lu-Meng Liu, Wen-Hao Zhou, Jun Xu, Guang-Xiong Peng. 2021-09-21. Isospin effect on quark matter instabilities. https://doi.org/10.1016/j.physletb.2021.136694

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