The Sphaleron Rate through the Electroweak Cross-over

Abstract

Using lattice simulations, we measure the sphaleron rate in the Standard Model as a function of temperature through the electroweak cross-over, for the Higgs masses m_H=115 and m_H=160 GeV. We pay special attention to the shutting off of the baryon rate as the temperature is lowered. This quantity enters computations of Baryogenesis via Leptogenesis, where non-zero lepton number is converted into non-zero baryon number by equilibrium sphaleron transitions. Combining existing numerical methods applicable in the symmetric and broken electroweak phases, we find the temperature dependence of the sphaleron rate at very high temperature, through the electroweak cross-over transition, and deep into the broken phase.

25 pages, 11 figures

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Cited by in corpus (50)

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• The Sphaleron Rate in the Minimal Standard Model
• Dark Matter, Baryogenesis and Neutrino Oscillations from Right Handed Neutrinos
• The Standard Model cross-over on the lattice
• Quantum Transport and Electroweak Baryogenesis
• Standard Model thermodynamics across the electroweak crossover
• The art of simulating the early Universe -- Part I
• Naturalness, Vacuum Stability and Leptogenesis in the Minimal Seesaw Model
• Off-equilibrium sphaleron transitions in the Glasma
• Baryogenesis through Neutrino Oscillations: A Unified Perspective
• Improved sphaleron decoupling condition and the Higgs coupling constants in the real singlet-extended SM
• Lattice study of an electroweak phase transition at m_h ~ 126 GeV
• Effective field theory approach to thermal bubble nucleation
• Probing leptogenesis with GeV-scale sterile neutrinos at LHCb and BELLE II
• Effective Field Theory and Electroweak Baryogenesis in the Singlet-Extended Standard Model
• Leptogenesis and Primordial Magnetic Fields
• Leptogenesis Via Neutrino Production During Higgs Condensate Relaxation
• Spectator Effects during Leptogenesis in the Strong Washout Regime
• Asymmetric Dark Matter May Not Be Light
• Chiral charge dynamics in Abelian gauge theories at finite temperature
• Similar Dark Matter and Baryon abundances with TeV-scale Leptogenesis
• Baryonecrosis: Displaced Vertices from $R$-Parity Violation
• Freeze-out of baryon number in low-scale leptogenesis
• Electroweak phase transition in the economical 3-3-1 model
• Electroweak phase transition in the reduced minimal 3-3-1 model
• Electroweak sphalerons in the reduced minimal 3-3-1 model
• Ensemble fermions for electroweak dynamics and the fermion preheating temperature
• Disfavouring Electroweak Baryogenesis and a hidden Higgs in a CP-violating Two-Higgs-Doublet Model
• Sphaleron in the first-order electroweak phase transition with the dimension-six Higgs operator
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• Electroweak Sphaleron in a Magnetic field
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• Baryogenesis and gravitational waves in the Zee-Babu Model
• Non-perturbative determination of the sphaleron rate for first-order phase transitions
• Multi-period structure of electro-weak phase transition in the 3-3-1-1 model
• Leptogenesis and eV scale sterile neutrino
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• Early Universe in the SU(3)_L X U(1)_X electroweak models
• Using $\Delta N_{\mathrm{eff}}$ to constrain preferred axion model dark matter
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• Light-cone Wilson loop in classical lattice gauge theory
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• Strong CP problem, axions, and cosmological implications of CP violation
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• Strong First Order Phase Transition and $B$ Violation in the Compact 341 Model
• How many new particles do we need after the Higgs boson?
• Geometric Baryogenesis with Chiral-Time Equivalence
• Leptogenesis in an anomaly-free $\mathrm{U}(1)$ extension with higher-dimensional operators
• Lattice study of the critical bubble in $\mathrm{SU}(8)$ deconfinement transition