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A Nonperturbative Measurement of the Broken Phase Sphaleron Rate

Guy D. Moore
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Abstract

We develop a method to compute the sphaleron rate in the electroweak broken phase nonperturbatively. The rate is somewhat slower than a perturbative estimate. In SU(2) X U(1) Higgs theory at the physical value of Theta_W, and assuming that the latent heat of the phase transition reheats the universe to the equilibrium temperature, baryon number erasure after the phase transition is prevented only when lambda/g^2 <= 0.036.

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Guy D. Moore. 1998-08-05. A Nonperturbative Measurement of the Broken Phase Sphaleron Rate. https://doi.org/10.1016/s0370-2693(98)01009-0

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