Quark matter nucleation in hot hadronic matter - Astrophysics > Solar and Stellar Astrophysics

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Abstract: We study the quark deconfinement phase transition in hot $\beta$-stablehadronic matter. Assuming a first order phase transition, we calculate theenthalpy per baryon of the hadron-quark phase transition. We calculate andcompare the nucleation rate and the nucleation time due to thermal and quantumnucleation mechanisms. We compute the crossover temperature above which thermalnucleation dominates the finite temperature quantum nucleation mechanism. Wenext discuss the consequences for the physics of proto-neutron stars. Weintroduce the concept of limiting conversion temperature and critical mass$M {cr}$ for proto-hadronic stars, and we show that proto-hadronic stars with amass $M < M {cr}$ could survive the early stages of their evolution withoutdecaying to a quark star.

Autor: I. Bombaci, D. Logoteta, P.K. Panda, C. Providencia, I. Vidana

Fuente: https://arxiv.org/