Lepton MHD and magnetic field generation in SM

Details Lepton MHD and magnetic field generation in SM Lepton MHD and magnetic field generation in SM

2004-03-09

arxiv.org/abs/hep-ph/0403096v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

17 pages, no figures, LATEX. Talk given by author at the International Conference on Astrophysics and High Energy Physics AHEP

Scientific paper

We derive a total set of MHD equations in SM describing evolution of a dense plasma with neutrinos. First this is done for a hot pair plasma consisting of electrons and positrons, neutrinos and antineutrinos of all flavors in an isotropic medium like the early universe plasma at the lepton stage. Then we find how axial vector currents violating parity in SM contribute to MHD for a slightly polarized (anisotropic) plasma where a new mechanism for the amplification of mean magnetic fields arises due to the collective neutrino-plasma interactions instead of assumed asymmetry of fluid velocity vortices leading to the same effect of $\alpha^2$-dynamo.

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