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arXiv · hep-ph/9710538

High Temperature Dimensional Reduction and Parity Violation

K. Kajantie·M. Laine·K. Rummukainen·M. Shaposhnikov
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Abstract

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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K. Kajantie, M. Laine, K. Rummukainen, M. Shaposhnikov. 1997-12-19. High Temperature Dimensional Reduction and Parity Violation. https://doi.org/10.1016/s0370-2693(97)01584-0

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