Neutrino Self-Energy and Index of Refraction in Strong Magnetic Field: A New Approach |
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Authors: | E Elizalde EJ Ferrer V de la Incera |
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Institution: | a Institute for Space Studies of Catalonia, CSIC, Edif. Nexus, Gran Capita 2-4, Barcelona, 08034, Spainb Department of Structure and Constituents of Matter, University of Barcelona, Diagonal 647, Barcelona, 08028, Spainc Department of Physics, State University of New York at Fredonia, Houghton Hall 118, Fredonia, New York, 14063 |
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Abstract: | The Ritus Ep eigenfunction method is extended to the case of spin-1 charged particles in a constant electromagnetic field and used to calculate the one-loop neutrino self-energy in the presence of a strong magnetic field. From the obtained self-energy, the neutrino dispersion relation and index of refraction in the magnetized vacuum are determined within the field range m2e?eB?M2W. The propagation of neutrinos in the magnetized vacuum is anisotropic due to the dependence of the index of refraction on the angle between the directions of the neutrino momentum and the external field. Possible cosmological implications of the results are discussed. |
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