Electroweak baryogenesis window in non standard cosmologies
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Electroweak baryogenesis window in non standard cosmologies

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Electroweak baryogenesis window in non standard cosmologies

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Barenboim Szuchman, Gabriela Alejandra Perfil; Rasero Daparte, Javier
This document is a artículoDate2012

Este documento está disponible también en : http://hdl.handle.net/10550/43464
In this work we show that the new bounds on the Higgs mass are more than difficult to reconcile with the strong constraints on the physical parameters of the Standard Model and the Minimal Supersymmetric Standard Model imposed by the preservation of the baryon asymmetry. This bound can be weakened by assuming a nonstandard cosmology at the time of the electroweak phase transition, reverting back to standard cosmology by BBN time. Two explicit examples are an early period of matter dominated expansion due to a heavy right handed neutrino (see-saw scale), or a nonstandard braneworld expansion.

    Barenboim Szuchman, Gabriela Alejandra Rasero Daparte, Javier 2012 Electroweak baryogenesis window in non standard cosmologies Journal of High Energy Physics 12 07 028-1 028-20
http://dx.doi.org/10.1007/JHEP07(2012)028

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