THE EFFECT OF ELECTROMAGNETIC PROPERTIES OF NEUTRINOS ON THE PHOTON-NEUTRINO DECOUPLING TEMPERATURE

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Inan S. C. , Koksal M.

INTERNATIONAL JOURNAL OF MODERN PHYSICS A, vol.27, no.32, 2012 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 27 Issue: 32
  • Publication Date: 2012
  • Doi Number: 10.1142/s0217751x12501874
  • Title of Journal : INTERNATIONAL JOURNAL OF MODERN PHYSICS A

Abstract

We examine the impact of electromagnetic properties of neutrinos on the annihilation of relic neutrinos with ultrahigh energy cosmic neutrinos for the nu(nu) over bar -> gamma gamma process. For this process, photon-neutrino decoupling temperature is calculated via effective Lagrangian model beyond the standard model. We find that photon-neutrino decoupling temperature can be importantly reduced below the QCD phase transition with the model independent analysis defining electromagnetic properties of neutrinos.