The Effective Matter Potential for Highly Relativistic Neutrinos
High Energy Physics - Phenomenology
2009-11-11 v2
Abstract
We investigate matter effects on highly relativistic neutrinos. The self-energy of neutrinos is determined in an electron or neutrino background taking into account resonance and finite width effects of the gauge bosons. We find minor changes compared to the formerly used formula for the propagator function and large deviations of the effective width from the decay width of the gauge bosons considering higher moments of the electron or neutrino distribution function.
Keywords
Cite
@article{arxiv.hep-ph/0511010,
title = {The Effective Matter Potential for Highly Relativistic Neutrinos},
author = {Thomas Konstandin and Tommy Ohlsson},
journal= {arXiv preprint arXiv:hep-ph/0511010},
year = {2009}
}
Comments
10 pages, 4 figures, latex. Final version published in Phys. Lett. B