Dispersion relations from the Hard Thermal Loop effective action in a magnetic field

Details Dispersion relations from the Hard Thermal Loop effective action in a magnetic field Dispersion relations from the Hard Thermal Loop effective action in a magnetic field

1995-10-17

arxiv.org/abs/hep-ph/9510314v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

Latex+epsf with uuencoded ps-figures

Scientific paper

Dispersion relations for fermions at high temperature and in a background magnetic field are calculated in two different ways. First from a straightforward one-loop calculation where, in the weak field limit, we find an expression closely related to the standard dispersion relations in the absence of the magnetic field. Secondly, we derive the dispersion relations directly from the Hard Thermal Loop effective action, which allows for an exact solution (i.e. to all orders in the external field), up to the last numerical integrals.

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