Effect of current quark masses on quark phase transitions in supernovae  

作　　者：赖祥军 罗志全 刘宏林 

机构地区：[1]Institute of Theoretical Physics,China West Normal University

出　　处：《Chinese Physics C》2008年第6期428-432,共5页中国物理C（英文版）

基　　金：National Natural Science Foundation of China(10347008);Key Scientific Research Fund of Sichuan Provincial Education Department(2006A079);Science and Technology Foundation of China West Normal University

摘　　要：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.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.

关 键 词：quark phase transition current quark mass SUPERNOVA 

分 类 号：O572.33[理学—粒子物理与原子核物理]