Strongly first-order electroweak phase transition by relatively heavy additional Higgs bosons
Strongly first-order electroweak phase transition by relatively heavy additional Higgs bosons
We discuss first-order electroweak phase transition in models with extended Higgs sectors for the case with relatively heavy additional scalar bosons. We first show that, by the combination of the sphaleron decoupling condition, perturbative unitarity and vacuum stability, mass upper bounds on additional scalar bosons can be obtained at the …