High Temperature Dimensional Reduction and Parity Violation

Details High Temperature Dimensional Reduction and Parity Violation High Temperature Dimensional Reduction and Parity Violation

1997-10-30

arxiv.org/abs/hep-ph/9710538v2

Phys.Lett. B423 (1998) 137-144

Physics

High Energy Physics

High Energy Physics - Phenomenology

12 pages, 1 figure. Small clarifications added. To appear in Phys.Lett.B

Scientific paper

10.1016/S0370-2693(97)01584-0

The effective super-renormalizable 3-dimensional Lagrangian, describing the high temperature limit of chiral gauge theories, has more symmetry than the original 4d Lagrangian: parity violation is absent. Parity violation appears in the 3d theory only through higher-dimensional operators. We compute the coefficients of dominant P-odd operators in the Standard Electroweak theory and discuss their implications. We also clarify the parametric accuracy obtained with dimensional reduction.

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