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Showing 1 to 4 of 4 for “"sphaleron"”.
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Searching for novel objects in the electroweak theory
… ansatz, and discuss the quantum corrected sphaleron and the emergence of new barriers suppressing the decay of heavy fermions. Finally, we consider electroweak strings and how they could give rise to stable multi-quark objects.
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The electroweak phase transition in models with gauge singlets
… of the SM with a real gauge singlet using the sphaleron energy at the critical temperature. We find that the phase transition is stronger by adding a singlet; and also that the criterion for a strong phase transition Omega(Tc)/Tc>1, where Omega=(v^2+(x-x0)^2)^(1/2) and x (x0) is the singlet …
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Neutrino masses and Baryogenesis via Leptogenesis in the Exceptional Supersymmetric Standard Model
… into baryon number asymmetry via the electroweak sphaleron process. This mechanism explains the baryon asymmetry of universe problem and is called leptogenesis. However, one finds that in order to generated enough baryon number in the universe, the reheating temperature, which is required to be of …