超新星中夸克相变的u,d夸克质量效应  

Effect of u and d quark mass on the phase transition of quark matter in supernova

作　　者：赖祥军[1] 刘门全[1] 刘宏林[1] 罗志全[1] 

机构地区：[1]西华师范大学理论物理研究所,四川南充637002

出　　处：《云南大学学报（自然科学版）》2007年第6期584-588,595,共6页Journal of Yunnan University(Natural Sciences Edition)

基　　金：国家自然科学基金资助项目(10347008);西华师范大学科研启动基金资助课题

摘　　要：分析了超新星中从两味夸克物质到奇异夸克物质相变的u,d夸克质量作用,研究表明,相变平衡后,u,d夸克质量对夸克丰度、温度和中微子总能量的影响不大.在分析相变过程时,u,d夸克的质量可以忽略.进一步表明,夸克味(u,d)不是好的量子相变参量.光子的夸克结构模型也得到了支持.The effect of u and d quark mass on the conversion of the two - flavor quark matter to more stable strange quark matter has been analyzed. It is shown that the u and d quark mass has slight influence on equilibrium parameters, involving quark temperature, quark abundances and total neutrino energies. So the u and d quark mass can reasonably be neglected when the conversion processes are studied in a supernova core. It further indicates that the u, d quarks are not good quantum transition flavors and the structure of photon comprised of quarks is also supported.

关 键 词：夸克相变 超新星 反应率 

分 类 号：P145.3[天文地球—天体物理]