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Topography of the hot sphaleron Transitions | | J. Ambjorn
; K. Farakos
; | | Date: |
20 Jul 1992 | | Journal: | Phys.Lett. B294 (1992) 248-256 | | Subject: | hep-lat | | 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. | | Source: | arXiv, hep-lat/9207020 | | Services: | Forum | Review | PDF | Favorites | |
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