A new perspective on the electroweak phase transition in the Standard Model Effective Field Theory

Abstract

A first-order Electroweak Phase Transition (EWPT) could explain the observed baryon-antibaryon asymmetry and its dynamics could yield a detectable gravitational wave signature, while the underlying physics would be within the reach of colliders. The Standard Model, however, predicts a crossover transition. We therefore study the EWPT in the Standard Model Effective Field Theory (SMEFT) including dimension-six operators. A first-order EWPT has previously been shown to be possible in the SMEFT. Phenomenology studies have focused on scenarios with a tree-level barrier between minima, which requires a negative Higgs quartic coupling and a new physics scale low enough to raise questions about the validity of the EFT approach. In this work we stress that a first-order EWPT is also possible when the barrier between minima is generated radiatively, the quartic coupling is positive, the scale of new physics is higher, and there is good agreement with experimental bounds. Our calculation is done in a consistent, gauge-invariant way, and we carefully analyze the scaling of parameters necessary to generate a barrier in the potential. We perform a global fit in the relevant parameter space and explicitly find the points with a first-order transition that agree with experimental data. We also briefly discuss the prospects for probing the allowed parameter space using di-Higgs production in colliders.

arXiv comment18 pages, 5 figures (version accepted for publication, minor changes)

References in corpus (41)

• Dimension-Six Terms in the Standard Model Lagrangian
• Science with the space-based interferometer eLISA. II: Gravitational waves from cosmological phase transitions
• Electroweak baryogenesis
• Is There a Hot Electroweak Phase Transition at $m_H\gsim m_W$?
• Detecting gravitational waves from cosmological phase transitions with LISA: an update
• The Effective Potential and First-Order Phase Transitions: Beyond Leading Order
• First-Order Electroweak Phase Transition in the Standard Model with a Low Cutoff
• On the Maximal Strength of a First-Order Electroweak Phase Transition and its Gravitational Wave Signal
• Baryon Washout, Electroweak Phase Transition, and Perturbation Theory
• Updated Global SMEFT Fit to Higgs, Diboson and Electroweak Data
• Dynamics of Non-renormalizable Electroweak Symmetry Breaking
• Wilson: a Python package for the running and matching of Wilson coefficients above and below the electroweak scale
• Theoretical uncertainties for cosmological first-order phase transitions
• Gravitational waves from a first order electroweak phase transition: a brief review
• Strong First Order Electroweak Phase Transition in the CP-Conserving 2HDM Revisited
• A Global Likelihood for Precision Constraints and Flavour Anomalies
• The Baryon asymmetry in the Standard Model with a low cut-off
• Production of Gravitational Waves in the nMSSM
• Feynman Rules for the Standard Model Effective Field Theory in $R_{\xi }$-gauges
• Putting SMEFT Fits to Work
• Higgs boson potential at colliders: status and perspectives
• Taming Infrared Divergences in the Effective Potential
• Taming the Goldstone contributions to the effective potential
• Signals of the electroweak phase transition at colliders and gravitational wave observatories
• The Electroweak Phase Transition: A Collider Target
• Consistent Use of Effective Potentials
• Singlet-assisted electroweak phase transition at two loops
• The gravitational waves from the first-order phase transition with a dimension-six operator
• On the perturbative expansion at high temperature and implications for cosmological phase transitions
• Electroweak Baryogenesis and the Standard Model Effective Field Theory
• Electroweak phase transition in the $\Sigma$SM - I: Dimensional reduction
• Robust approach to thermal resummation: Standard Model meets a singlet
• Gauge Dependence of the High-Temperature 2-Loop Effective Potential for the Higgs Field
• Electroweak Baryogenesis from Temperature-Varying Couplings
• Real scalar phase transitions: a nonperturbative analysis
• Exploring Extended Scalar Sectors with Di-Higgs Signals: A Higgs EFT Perspective
• Cosmological phase transitions: is effective field theory just a toy?
• A Critical Look at the Electroweak Phase Transition
• Combined analysis of double Higgs production via gluon fusion at the HL-LHC in the effective field theory approach
• Resummation of Goldstone Infrared Divergences: A Proof to All Orders
• First Order Electroweak Phase Transition from Weakly Coupled sub-GeV Physics and Possible Connection to Fermion Flavor

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