Magnetic Properties of Neutrinos in High Temperature
نویسندگان
چکیده
We calculate the finite temperature self-energy for neutrinos in the presence of a constant magnetic field in a medium in the unbroken SU(2) ⊗ U(1) model. We obtain the exact dispersion relation for such neutrinos and find that the thermal effective mass is modified by the magnetic field. We also find a simple analytic expression for the dispersion relation and obtain the index of refraction for large neutrino momentum. ∗[email protected] †[email protected] ‡permanent address §[email protected] 1
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