Neutrinos in Strong Magnetic Fields

Details Neutrinos in Strong Magnetic Fields Neutrinos in Strong Magnetic Fields

1997-05-05

arxiv.org/abs/hep-ph/9705232v3

Physics

High Energy Physics

High Energy Physics - Phenomenology

11 pages, two figures, RevTeX file, some expressions (including typos) corrected, basic results unaffected

Scientific paper

We compute the dispersion curves for neutrinos propagating in an extremely dense electroweak plasma, in the presence of very strong magnetic fields of order $B \le M_W^2/e$. The neutrino self-energy is calculated in the one-loop approximation. We consider only contributions of the first Landau level to the propagator of the W-bosons, and distinguish between motion parallel or perpendicular to the external magnetic field. We find that the neutrino dispersion curve for parallel propagation to the field suggests a superfluid behavior. An interesting analogy with fractional QHE is pointed out. We obtain a neutrino effective mass which increases with the magnetic field.

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