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arXiv · hep-lat/9207020

Topography of the hot sphaleron Transitions

J. Ambjorn·K. Farakos
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Abstract

By numerical simulations in {\it real time} we provide evidence in favour of sphaleron like transitions in the hot, symmetric phase of the electroweak theory. Earlier performed observations of a change in the Chern-Simons number are supplemented with a measurement of the lowest eigenvalues of the three-dimensional staggered fermion Dirac operator and observations of the spatial extension of energy lumps associated with the transition. The observations corroborate on the interpretation of the change in Chern-Simons numbers as representing continuum physics, not lattice artifacts. By combining the various observations it is possible to follow in considerable detail the time-history of thermal fluctuations of the classical gauge-field configurations responsible for the change in the Chern-Simons number.

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J. Ambjorn, K. Farakos. 1992-07-20. Topography of the hot sphaleron Transitions. https://doi.org/10.1016/0370-2693(92)90690-6

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