The sphaleron rate in SU(N) gauge theory

By Guy D. Moore, M. Tassler. 2010

153 citations recorded by the source corpus.

The sphaleron rate is defined as the diffusion constant for topological number $ {N_{\text{CS}}} \equiv \int {\frac{{{g^2}F\tilde{F}}}{{32{\pi^2}}}} $. It establishes the rate of equilibration of axial light quark number in QCD and is of interest both in electroweak baryogenesis and possibly in heavy ion collisions. We calculate the weak-coupling behavior of the SU(3) sphaleron rate, as well as making the most sensible extrapolation towards intermediate coupling which we can. We also study the behavior of the sphaleron rate at weak coupling at large Nc.

Subfields: Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/a4855d595a7c89be61a86829a8afbdec93356ccd

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In Nuclear and High Energy Physics

1. D. Bodeker
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Citations in the corpus

• Baryogenesis from the weak scale to the grand unification scale (2020, methodology): “Using a different method, the strong-sphaleron rate at this scale was computed as Γstrong sph ' 1.4× 10−3T 4 (Moore and Tassler, 2011).”