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The classical sphaleron transition rate exists and is equal to 1.1(αwT)4

1995; Elsevier BV; Volume: 362; Issue: 1-4 Linguagem: Inglês

10.1016/0370-2693(95)01157-l

1873-2445

J. Ambjørn, A. Krasnitz,

Physics of Superconductivity and Magnetism

Results of a large scale numerical simulation show that the high temperature Chern-Simons number diffusion rate in the electroweak theory has a classical limit Γ = κ(αwT)4,where κ = 1.09 ± 0.04 and αw is the weak fine structure constant.