Computing the temperature dependence of effective CP violation in the standard model
arXiv:1208.5609 · doi:10.1007/JHEP11(2012)076
Abstract
CP violation in the standard model originates from the Cabibbo-Kobayashi-Maskawa mixing matrix. Upon integrating all fermions out of the theory, its effects are captured by a series of effective nonrenormalizable operators for the bosonic gauge and Higgs fields. We compute the CP-violating part of the effective action to the leading nontrivial, sixth order in the covariant gradient expansion as a function of temperature. In the limit of zero temperature, our result addresses the discrepancy between two independent calculations existing in the literature [1,2]. We find that CP violation in the standard model is strongly suppressed at high temperature, but that at T<1GeV it may be relevant for certain scenarios of baryogenesis. We also identify a selected class of operators at the next, eighth order and discuss the convergence of the covariant gradient expansion.
34 pages, 5 eps figures, jheppub style; v2: minor corrections, published version
References in corpus (34)
- Big Bang Nucleosynthesis (in "The Review of Particle Properties" 2004)
- Progress in Electroweak Baryogenesis
- Standard Model CP-violation and Baryon asymmetry
- Standard Model CP-violation and Baryon asymmetry Part II: Finite Temperature
- Baryon Asymmetry of the Universe in the Minimal Standard Model
- Baryon Asymmetry of the Universe in the Standard Model
- Non-equilibrium electroweak baryogenesis from preheating after inflation
- Standard Model CP-violation and Baryon asymmetry Part I: Zero Temperature
- Baryogenesis Below The Electroweak Scale
- Baryon asymmetry from electroweak tachyonic preheating
- Hybrid Inflation and Baryogenesis at the TeV Scale
- Natural Cold Baryogenesis from Strongly Interacting Electroweak Symmetry Breaking
- Real-Time Dynamics with Fermions on a Lattice
- W and Higgs particle distributions during electroweak tachyonic preheating
- Covariant technique of derivative expansion of one-loop effective action
- Simulations of Cold Electroweak Baryogenesis: Finite time quenches
- The thermal heat kernel expansion and the one-loop effective action of QCD at finite temperature
- Electroweak-scale inflation, inflaton-Higgs mixing and the scalar spectral index
- Sizable CP Violation in the Bosonized Standard Model
- Cold electroweak baryogenesis with Standard Model CP violation
- Simulations of Cold Electroweak Baryogenesis: Dependence on Higgs mass and strength of CP-violation
- Real-time Fermions for Baryogenesis Simulations
- Temperature Dependence of Standard Model CP Violation
- Dynamical simulations of electroweak baryogenesis with fermions
- Derivative expansion for the effective action of chiral gauge fermions. The abnormal parity component
- Effective CP violation in the Standard Model
- CP violation in the effective action of the Standard Model
- Derivative expansion for the effective action of chiral gauge fermions. The normal parity component
- Cold Electroweak Baryogenesis in the Two Higgs-Doublet Model
- Fast Electroweak Symmetry Breaking and Cold Electroweak Baryogenesis
- Derivative expansion of the heat kernel at finite temperature
- Leading order one-loop CP and P violating effective action in the Standard Model
- Standard Model CP-violation and Cold Electroweak Baryogenesis
- Possibility of Electroweak Phase Transition at Low Temperature
Cited by in corpus (16)
- Nonperturbative Analysis of the Electroweak Phase Transition in the Two Higgs Doublet Model
- Baryogenesis from Strong CP Violation and the QCD Axion
- Postinflationary Higgs relaxation and the origin of matter-antimatter asymmetry
- Lattice study of an electroweak phase transition at m_h ~ 126 GeV
- Robust approach to thermal resummation: Standard Model meets a singlet
- Dimensional reduction of the Standard Model coupled to a new singlet scalar field
- The role of leptons in electroweak baryogenesis
- Three-dimensional effective theories for the two Higgs doublet model at high temperature
- Flavor Cosmology: Dynamical Yukawas in the Froggatt-Nielsen Mechanism
- Leptogenesis Via Neutrino Production During Higgs Condensate Relaxation
- Leptogenesis via Higgs Condensate Relaxation
- Ensemble fermions for electroweak dynamics and the fermion preheating temperature
- Baryogenesis and helical magnetogenesis from the electroweak transition of the minimal Standard Model
- Lectures on nonperturbative QCD ( Nonperturbative Topological Phenomena in QCD and Related Theories)
- Simulations of Cold Electroweak Baryogenesis: Quench from portal coupling to new singlet field
- Leptonic CP violating effective action for Dirac and Majorana neutrinos