期刊
JOURNAL OF HIGH ENERGY PHYSICS
卷 -, 期 7, 页码 -出版社
SPRINGER
DOI: 10.1088/1126-6708/2009/07/015
关键词
Nonperturbative Effects; CP violation; Standard Model
资金
- DGI
- FEDER [FIS2008-01143]
- Junta de Andalucia [FQM225, FQM481, P06-FQM-01735]
- CASIMIR
- EU [RII3-CT-2004-506078]
Following a suggestion by Smit, the CP odd terms of the effective action of the Standard Model, obtained by integration of quarks and leptons, are computed to sixth order within a strict covariant derivative expansion approach. No other approximations are made. The final result so derived includes all Standard Model gauge fields and Higgs. Remarkably, at the order considered in this work, all parity violating contributions turn out to be zero. Non vanishing CP violating terms are obtained in the C-odd P-even sector. These are several orders of magnitude larger than perturbative estimates. Various unexpected regularities in the final result are noted.
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