Temperature Dependence of Standard Model CP Violation

0375624 - ÚJF 2012 RIV US eng J - Článek v odborném periodiku
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
Výzkumný záměr: CEZ:AV0Z10480505
Klíčová slova: CHIRAL GAUGE FERMIONS * BARYON ASYMMETRY * DERIVATIVE EXPANSION
Kód oboru RIV: BE - Teoretická fyzika
Impakt faktor: 7.943, rok: 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.
Trvalý link: http://hdl.handle.net/11104/0208227