منابع مشابه
3 The sphaleron transition rate
An exactly solvable sphaleron model in 3 + 1 spacetime dimensions is described1
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We study the SU(2) electroweak model in which the standard Yang-Mills coupling is supplemented by a Born-Infeld term. The deformation of the sphaleron and bisphaleron solutions due to the Born-Infeld term is investigated and new branches of solutions are exhibited. Especially, we find a new branch of solutions connecting the Born-Infeld sphaleron to the first solution of the Kerner-Gal’tsov ser...
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Type I string theory can be dimensionally reduced on group manifolds. The compactification on S × S leads to the N=4 gauged SU(2)×SU(2) supergravity in four dimensions, which admits the BPS monopole type nonAbelian vacuum. The reduction on S × AdS3 gives the Euclidean N=4 gauged SU(2)×SU(1,1) supergravity admitting a globally regular supersymmetric non-Abelian background. The latter can be anal...
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We measure the diffusion constant for Chern-Simons number for classical, lattice SU(3) Yang-Mills theory, using a generalization of the topological definition of Chern-Simons number developed recently by Moore and Turok. The diffusion constant is much larger than that for SU(2), even before the ratio of coupling constants has been accounted for, which implies that chiral quark number is efficie...
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ژورنال
عنوان ژورنال: Physics Letters B
سال: 2002
ISSN: 0370-2693
DOI: 10.1016/s0370-2693(01)01381-8