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- W2018369618 abstract "We examine constraints on the gravitino-induced baryogenesis model which arise from primordial nucleosynthesis. Agreement with observed element abundances requires that the gravitino mass satisfy ${m}_{stackrel{ifmmode tilde{}else ~{}fi{}}{G}}>50ensuremath{-}53$ TeV, corresponding to a lifetime ${ensuremath{tau}}_{stackrel{ifmmode tilde{}else ~{}fi{}}{G}}<0.04ensuremath{-}0.05$ sec. For $50 mathrm{TeV}<{m}_{stackrel{ifmmode tilde{}else ~{}fi{}}{G}}<80 mathrm{TeV}$, differential heating of the neutrinos and photons lowers the $ensuremath{mu}$- and $ensuremath{tau}$-neutrino-to-photon number ratio, increasing the neutrino mass needed to close the Universe and, for a narrow range of ${m}_{stackrel{ifmmode tilde{}else ~{}fi{}}{G}}$, allowing the Tremaine-Gunn limit to be evaded. For $55 mathrm{TeV}<{m}_{stackrel{ifmmode tilde{}else ~{}fi{}}{G}}<80 mathrm{TeV}$, this differential heating also lowers the primordial helium abundance below the value predicted in the standard model." @default.
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- W2018369618 title "Gravitino-induced baryogenesis, primordial nucleosynthesis, and the Tremaine-Gunn limit" @default.
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- W2018369618 doi "https://doi.org/10.1103/physrevd.44.3760" @default.
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