The paper proposes inverse electroweak baryogenesis where baryon asymmetry arises from equilibrium sphaleron processes in the presence of a conserved global charge during an inverse phase transition that alters electroweak symmetry breaking strength.
High Scale Electroweak Phase Transition: Baryogenesis & Symmetry Non-Restoration
3 Pith papers cite this work. Polarity classification is still indexing.
abstract
We explore the possibility that the electroweak phase transition happens at a scale much higher than the electroweak scale today. In this context, high scale CP-violating sources for electroweak baryogenesis are not constrained by low-energy experiments. We propose a scenario of high-scale electroweak baryogenesis linked to flavour physics. This scenario allows for a period of enhanced Yukawa couplings during the evolution of the universe, which source time-dependent CP violation. The electroweak symmetry is never restored after the high-scale phase transition due to negative contributions to the Higgs thermal mass squared from a large number of additional electroweak-scale neutral scalars coupling to the Higgs. As a result, the washout of the baryon asymmetry is avoided.
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Defines peak-integrated sensitivity curves (PISCs) that fold in the expected spectral shape of gravitational waves from cosmological phase transitions and supplies semianalytical fits plus public data for major detectors.
Updated LISA detection prospects for gravitational waves from phase transitions are derived from state-of-the-art sound-wave simulations, with a new web tool PTPlot provided for parameter scans.
citing papers explorer
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Inverse Electroweak Baryogenesis
The paper proposes inverse electroweak baryogenesis where baryon asymmetry arises from equilibrium sphaleron processes in the presence of a conserved global charge during an inverse phase transition that alters electroweak symmetry breaking strength.
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New Sensitivity Curves for Gravitational-Wave Signals from Cosmological Phase Transitions
Defines peak-integrated sensitivity curves (PISCs) that fold in the expected spectral shape of gravitational waves from cosmological phase transitions and supplies semianalytical fits plus public data for major detectors.
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Detecting gravitational waves from cosmological phase transitions with LISA: an update
Updated LISA detection prospects for gravitational waves from phase transitions are derived from state-of-the-art sound-wave simulations, with a new web tool PTPlot provided for parameter scans.