Perturbative reheating in the mixed Higgs-????² model

Reheating with a composite Higgs boson

on the status of mixed methods research in applied linguistics

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Enhancement of Higgs to diphoton decay width in non-perturbative Higgs model

We investigate a possibility if a loop diagram via Higgsino can enhance the Higgs to diphoton decay width in supersymmetric models with an extension of Higgs sector. A model with an additional non-renormalizable term of Higgs fields is firstly analyzed where the higher order term can introduce the Higgs coupling to Higgsinos as well as charged Higgs bosons. We point out that a choice of the Hig...

The Higgs Boson Lineshape and Perturbative Unitarity

We discuss the lineshape of a heavy Higgs boson, and the behaviour well above resonance. Previous studies concluded that the energy-dependent Higgs width should be used in the resonance region, but must not be used well away from it. We derive the full result and show that it smoothly extrapolates these limits. It is extremely simple, and would be straightforward to implement in existing calcul...

Perturbative Unification and Higgs Boson Mass Bounds

Supersymmetric extensions of the Standard Model generally give a theoretical upper limit on the lightest Higgs boson mass which may be uncomfortably close to the current experimental lower bound of mh > 114 GeV. Here we show ways in which this upper limit on mh can be relaxed substantially in the perturbative regime, while maintaining the successful unification of gauge couplings as observed in...