Effective Electromagnetic Lagrangian at Finite Temperature and Density in the Electroweak Model

Details Effective Electromagnetic Lagrangian at Finite Temperature and Density in the Electroweak Model Effective Electromagnetic Lagrangian at Finite Temperature and Density in the Electroweak Model

2010-06-25

arxiv.org/abs/1006.5067v1

Central Eur.J.Phys.9:1022-1035,2011

Physics

High Energy Physics

High Energy Physics - Phenomenology

14 pages, Revtex4

Scientific paper

10.2478/s11534-010-0140-7

Using the exact propagators in a constant magnetic field, the effective electromagnetic Lagrangian at finite temperature and density is calculated to all orders in the field strength B within the framework of the complete electroweak model, in the weak coupling limit. The partition function and free energy are obtained explicitly and the finite temperature effective coupling is derived in closed form. Some implications of this result, potentially interesting to astrophysics and cosmology, are discussed.

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