Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
1997-05-05
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.
Aguero David Oliva
Hechavarría Amézaga A.
Martinez Andrea Preite
Pérez Rojas H.
Romo Rodriguez S.
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