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arXiv · 2009.01781

Role of the conserved charges in the chiral symmetry restoration phase transition

Pedro Costa·Renan Câmara Pereira·Constança Providência
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Abstract

The effect of conserved baryon, isospin and strangeness charges on the behavior of phase transitions in dense matter is studied. Baryonic matter is described within the three-flavor Polyakov$-$Nambu$-$Jona-Lasinio model and several charge fractions $Y_Q$ are considered. The role of the vector interaction, which can be important to describe dense systems, is discussed. Special attention is given to the case with charge fraction $Y_Q=0.4$, due to its importance in heavy-ion collisions and core-collapse supernova matter. It is shown that the possible formation of chiral-symmetric quark matter in the laboratory will be favored in asymmetric matter. Besides, the inclusion of the vector interaction reinforces the formation of quark matter at lower densities.

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Pedro Costa, Renan Câmara Pereira, Constança Providência. 2020-09-03. Role of the conserved charges in the chiral symmetry restoration phase transition. https://doi.org/10.1103/physrevd.102.054010

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