The impact of excited neutrinos on $ν\barν\to γγ$ process

Details The impact of excited neutrinos on $ν\barν\to γγ$ process The impact of excited neutrinos on $ν\barν\to γγ$ process

2012-03-27

arxiv.org/abs/1203.5881v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

12 pages, 3 figures

Scientific paper

We examine the effect of excited neutrinos on the annihilation of relic neutrinos with ultra high energy cosmic neutrinos for the $\nu \bar{\nu}\to \gamma\gamma$ process. The contribution of the excited neutrinos to the neutrino-photon decoupling temperature are calculated. We see that photon-neutrino decoupling temperature can be significantly reduced below the QCD phase transition with the impact of excited neutrinos.

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