Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2007-06-27
Mod.Phys.Lett.A23:2771-2786,2008
Physics
High Energy Physics
High Energy Physics - Phenomenology
13 Pages, Latex file. Minor corrections included. To be published in Modern Physics Letters A
Scientific paper
10.1142/S0217732308028442
In this work we calculate the neutrino self-energy in presence of a magnetized medium. The magnetized medium consists of electrons, positrons, neutrinos and a uniform classical magnetic field. The calculation is done assuming the background magnetic field is weak compared to the $W$-Boson mass squared, as a consequence of which only linear order corrections in the field are included in the $W$ boson propagator. The electron propagator consists all order corrections in the background field. Although the neutrino self-energy in a magnetized medium in various limiting cases has been calculated previously in this article we produce the most general expression of the self-energy in absence of the Landau quantization of the charged gauge fields. We calculate the effect of the Landau quantization of the charged leptons on the neutrino self-energy in the general case. Our calculation is specifically suited for situations where the background plasma may be CP symmetric.
Bhattacharya Kaushik
Garcia Alberto Bravo
Sahu Sarira
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