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Effect of random magnetic field on active-sterile neutrino conversion in the supernova core

Sarira Sahu·Vishnu M. Bannur
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Abstract

The active-sterile neutrino conversion is studied for neutrino propagating in the axial potential generated by magnetised electron plasma in the supernova medium. We consider the effect of random magnetic field $B_{rms}$ on the average neutrino conversion probability. We obtained the constraint on $Δm^2$ and $\sin^2 2θ$ for different strength of the random magnetic fields, by considering the positive definiteness of the average neutrino conversion probability inside the supernova core. Our calculation shows that, $B_{rms}\le 0.63\times 10^{14}$ Gauss is preferable so that small values of $Δm^2$ can not be excluded.

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Sarira Sahu, Vishnu M. Bannur. 1998-06-20. Effect of random magnetic field on active-sterile neutrino conversion in the supernova core. https://doi.org/10.1103/physrevd.61.023003

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