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Temperature Dependence of Standard Model CP Violation
- 1.0375624 - ÚJF 2012 RIV US eng J - Journal Article
Brauner, Tomáš - Taanila, O. - Tranberg, A. - Vuorinen, A.
Temperature Dependence of Standard Model CP Violation.
Physical Review Letters. Roč. 108, č. 4 (2012), 041601/1-041601/5. ISSN 0031-9007. E-ISSN 1079-7114
Institutional research plan: CEZ:AV0Z10480505
Keywords : CHIRAL GAUGE FERMIONS * BARYON ASYMMETRY * DERIVATIVE EXPANSION
Subject RIV: BE - Theoretical Physics
Impact factor: 7.943, year: 2012
We analyze the temperature dependence of CP violation effects in the standard model by determining the effective action of its bosonic fields, obtained after integrating out the fermions from the theory and performing a covariant gradient expansion. We find nonvanishing CP violating terms starting at the sixth order of the expansion, albeit only in the C-odd-P-even sector, with coefficients that depend on quark masses, Cabibbo-Kobayashi-Maskawa matrix elements, temperature and the magnitude of the Higgs field.
Permanent Link: http://hdl.handle.net/11104/0208227
Number of the records: 1