Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2008-10-06
Phys.Rev.D79:065021,2009
Physics
High Energy Physics
High Energy Physics - Theory
improved and extended as compared to the first version, published
Scientific paper
10.1103/PhysRevD.79.065021
We present numerical evidence for the existence of stationary spinning generalizations for the static sphaleron in the Weinberg-Salam theory. Our results suggest that, for any value of the mixing angle $\thetw$ and for any Higgs mass, the spinning sphalerons comprise a family labeled by their angular momentum $J$. For $\thetw\neq 0$ they possess an electric charge $Q=eJ$ where $e$ is the electron charge. Inside they contain a monopole-antimonopole pair and a spinning loop of electric current, and for large $J$ they show a Regge-type behavior. It is likely that these sphalerons mediate the topological transitions in sectors with $J\neq 0$, thus enlarging the number of transition channels. Their action {\it decreases} with $J$, which may considerably affect the total transition rate.
Radu Eugen
Volkov Mikhail S.
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