Effect of current quark masses on quark phase transitions in supernovae

• Published in: Chinese physics C Vol. 32; no. 6; pp. 428 - 432
• Main Author: 赖祥军 罗志全 刘宏林
• Format: Journal Article
• Language: English
• Published: IOP Publishing 01.06.2008; Institute of Theoretical Physics, China West Normal University, Nanchong 637002, China
• Subjects: 物理理论; quark phase transition; current quark mass; supernova
• ISSN: 1674-1137; 0254-3052; 2058-6132
• DOI: 10.1088/1674-1137/32/6/003

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.