FLUCTUATION-DRIVEN ELECTROWEAK PHASE-TRANSITION

被引:56
作者
GLEISER, M
KOLB, EW
机构
[1] FERMI NATL ACCELERATOR LAB,NASA,CTR ASTROPHYS,BATAVIA,IL 60510
[2] UNIV CHICAGO,ENRICO FERMI INST,DEPT ASTRON & ASTROPHYS,CHICAGO,IL 60637
关键词
D O I
10.1103/PhysRevLett.69.1304
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
We examine the dynamics of the electroweak phase transition in the early Universe. For Higgs boson masses in the range 57 less-than-or-equal-to m(H) less-than-or-equal-to 150 GeV and top quark masses less than 200 GeV, regions of symmetric and asymmetric vacuum coexist to below the critical temperature, due to efficient thermal nucleation of subcritical fluctuations of the asymmetric phase within the symmetric phase. We propose that the transition to the asymmetric vacuum is completed by percolation of these fluctuations. Our results are relevant to scenarios of baryogenesis that invoke a weakly first-order electroweak transition.
引用
收藏
页码:1304 / 1307
页数:4
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