Hot hadron-quark mixed phase including hyperons

Nobutoshi Yasutake; Toshiki Maruyama; Toshitaka Tatsumi

Hot hadron-quark mixed phase including hyperons

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arxiv 0910.1144 v2 pith:5KPYYPFE submitted 2009-10-07 nucl-th astro-ph.HE

Nobutoshi Yasutake , Toshiki Maruyama , Toshitaka Tatsumi This is my paper · ORCID

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keywords phaseequationfinitehadron-quarkhyperonsmixedstateeffects

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We study the hadron-quark phase transition with the finite size effects at finite temperature. For the hadron phase, we adopt a realistic equation of state in the framework of the Brueckner-Hartree-Fock theory including hyperons. The properties of the mixed phase are clarified by considering the finite size effects under the Gibbs conditions. We find that the equation of state becomes softer than that at zero-temperature for some density region. We also find that the equation of state gets closer to that given by the Maxwell construction. Moreover, the number of hyperons is suppressed by the presence of quarks. These are characteristic features of the hadron-quark mixed phase, and should be important for many astrophysical phenomena such as mergers of binary neutron stars.

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