Electroweak phase transition triggered by fermion sector

Abstract

To realize first-order electroweak phase transition, it is necessary to generate a barrier in the thermal Higgs potential, which is usually triggered by scalar degree of freedom. We instead investigate phase transition patterns in pure fermion extensions of the standard model, and find that additional fermions with mass hierarchy and mixing could develop such barrier and realize strongly first-order phase transition in such models. In the Higgs potential with polynomial parametrization, the barrier can be generated in the following two patterns: (I) positive quadratic term, negative cubic term and positive quartic term or (II) positive quadratic term, negative quartic term and positive higher dimensional term, such as dimensional 6 operator.

26 pages, 9 figures

References in corpus (15)

• Observation of a new particle in the search for the Standard Model Higgs boson with the ATLAS detector at the LHC
• Observation of a new boson at a mass of 125 GeV with the CMS experiment at the LHC
• Gravitational Wave Production by Collisions: More Bubbles
• Gravitational Waves from Phase Transitions at the Electroweak Scale and Beyond
• Theoretical uncertainties for cosmological first-order phase transitions
• Techniques for the calculation of electroweak radiative corrections at the one-loop level and results for W-physics at LEP200
• Integrating out heavy particles with functional methods: a simplified framework
• Extending the Universal One-Loop Effective Action: Heavy-Light Coefficients
• Robust approach to thermal resummation: Standard Model meets a singlet
• Gauge-independent $\overline{MS}$ renormalization in the 2HDM
• Two-Loop Renormalization in the Standard Model Part I: Prolegomena
• How to use the Standard Model effective field theory
• Cosmological phase transitions: is effective field theory just a toy?
• The minimal fermionic model of electroweak baryogenesis
• Electroweak phase transition in a model with gauged lepton number

Cited by in corpus (2)

• Probing intermediate scale Froggatt-Nielsen models at future gravitational wave observatories
• Gravitational waves from patterns of electroweak symmetry breaking: an effective perspective