Geodesic
The $\theta$ Instantons in the $SU(2)$ Higgs Theory
Teoretičeskaâ i matematičeskaâ fizika, Tome 138 (2004) no. 3, pp. 468-479

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We consider topology-changing processes in the $SU(2)$ Higgs theory. In the standard model of particle physics, they are accompanied by baryon- and lepton-number violation. At a fixed energy and multiplicity of the initial state, these processes are described by classical $\theta$-instanton solutions. We find these solutions and calculate the suppression exponents for the probabilities of the topology-changing transitions at relatively low energies.
Keywords: electroweak model, fermion-number violation.
Mots-clés : instanton transitions 
@article{TMF_2004_138_3_a8,
     author = {F. L. Bezrukov and D. G. Levkov},
     title = {The $\theta$ {Instantons} in the $SU(2)$ {Higgs} {Theory}},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {468--479},
     publisher = {mathdoc},
     volume = {138},
     number = {3},
     year = {2004},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_2004_138_3_a8/}
}
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F. L. Bezrukov; D. G. Levkov. The $\theta$ Instantons in the $SU(2)$ Higgs Theory. Teoretičeskaâ i matematičeskaâ fizika, Tome 138 (2004) no. 3, pp. 468-479. http://geodesic.mathdoc.fr/item/TMF_2004_138_3_a8/