Cosmological decay of Higgs-like scalars into a fermion channel

We study the decay of a Higgs-like scalar Yukawa coupled to massless fermions in post-inflationary cosmology, combining a non-perturbative method with an adiabatic expansion. The renormalized survival probability \(\mathcal{P}_\Phi(t)\) of a (quasi) particle ``born'' at time \(t_b\) and de...

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Veröffentlicht in:	arXiv.org 2019-07
Hauptverfasser:	Boyanovsky, Daniel, Herring, Nathan
Format:	Artikel
Sprache:	eng
Schlagworte:	Cosmology Decay rate Fermions Lorentz factor Minkowski space Particle decay Physics - Cosmology and Nongalactic Astrophysics Physics - General Relativity and Quantum Cosmology Physics - High Energy Physics - Phenomenology Physics - High Energy Physics - Theory Red shift Scalars Survival Upper bounds
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