Effect of current quark masses on quark phase transitions in supernovae

  • The current quark mass model is adopted to study the phase transition of two-flavor quark matter to more stable three-flavor quark matter in the whole core of a supernova. It shows that the timescale of the process is shorter than 10-8 seconds, that the u- and d-quark masses can be neglected completely in this model, and that the temperature and the total neutrino energies in the core after the conversion increase nearly by 40% and 20% on the average compared with former results, respectively. The last result can further enhance the probability of success for a supernova explosion significantly.

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LAI Xiang-Jun, LUO Zhi-Quan and LIU Hong-Lin. Effect of current quark masses on quark phase transitions in supernovae[J]. Chinese Physics C, 2008, 32(6): 428-432. doi: 10.1088/1674-1137/32/6/003
LAI Xiang-Jun, LUO Zhi-Quan and LIU Hong-Lin. Effect of current quark masses on quark phase transitions in supernovae[J]. Chinese Physics C, 2008, 32(6): 428-432.  doi: 10.1088/1674-1137/32/6/003 shu
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Received: 2007-03-23
Revised: 2008-02-16
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Effect of current quark masses on quark phase transitions in supernovae

    Corresponding author: LAI Xiang-Jun,

Abstract: 

The current quark mass model is adopted to study the phase transition of two-flavor quark matter to more stable three-flavor quark matter in the whole core of a supernova. It shows that the timescale of the process is shorter than 10-8 seconds, that the u- and d-quark masses can be neglected completely in this model, and that the temperature and the total neutrino energies in the core after the conversion increase nearly by 40% and 20% on the average compared with former results, respectively. The last result can further enhance the probability of success for a supernova explosion significantly.

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