Temperature Dependence of Standard Model CP Violation

Brauner T, Taanila O, Tranberg A, Vuorinen A (2012)
Phys.Rev.Lett 108(4): 41601.

Zeitschriftenaufsatz | Veröffentlicht | Englisch
 
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Autor*in
Brauner, TomásUniBi; Taanila, Olli; Tranberg, Anders; Vuorinen, AleksiUniBi
Abstract / Bemerkung
We analyze the temperature dependence of CP violation effects in the StandardModel by determining the effective action of its bosonic fields, obtained afterintegrating out the fermions from the theory and performing a covariantgradient expansion. We find non-vanishing CP violating terms starting at thesixth order of the expansion, both in the C odd/P even and C even/P oddsectors, with coefficients that depend on quark masses, CKM matrix elements,temperature and the magnitude of the Higgs field. The CP violating effects areobserved to decrease rapidly with temperature, which has important implicationsfor the generation of matter-antimatter asymmetry in the early Universe. Ourresults suggest that the cold electroweak baryogenesis scenario may be viablewithin the Standard Model, provided the electroweak transition temperature isat most of order 1GeV.
Erscheinungsjahr
2012
Zeitschriftentitel
Phys.Rev.Lett
Band
108
Ausgabe
4
Art.-Nr.
41601
ISSN
0031-9007
eISSN
1079-7114
Page URI
https://pub.uni-bielefeld.de/record/2428092

Zitieren

Brauner T, Taanila O, Tranberg A, Vuorinen A. Temperature Dependence of Standard Model CP Violation. Phys.Rev.Lett. 2012;108(4): 41601.
Brauner, T., Taanila, O., Tranberg, A., & Vuorinen, A. (2012). Temperature Dependence of Standard Model CP Violation. Phys.Rev.Lett, 108(4), 41601. https://doi.org/10.1103/PhysRevLett.108.041601
Brauner, T., Taanila, O., Tranberg, A., and Vuorinen, A. (2012). Temperature Dependence of Standard Model CP Violation. Phys.Rev.Lett 108:41601.
Brauner, T., et al., 2012. Temperature Dependence of Standard Model CP Violation. Phys.Rev.Lett, 108(4): 41601.
T. Brauner, et al., “Temperature Dependence of Standard Model CP Violation”, Phys.Rev.Lett, vol. 108, 2012, : 41601.
Brauner, T., Taanila, O., Tranberg, A., Vuorinen, A.: Temperature Dependence of Standard Model CP Violation. Phys.Rev.Lett. 108, : 41601 (2012).
Brauner, Tomás, Taanila, Olli, Tranberg, Anders, and Vuorinen, Aleksi. “Temperature Dependence of Standard Model CP Violation”. Phys.Rev.Lett 108.4 (2012): 41601.

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PMID: 22400822
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arXiv: 1110.6818

Inspire: 943766

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