On Electroweak Phase Transition and Di-photon Excess with a 750 GeV Scalar Resonance

Abstract

For successful electroweak baryogenesis to take place through the sphaleron process the universe needs to undergo a strong first order cosmological phase transition. While it does not occur in the Standard Model it becomes possible in the presence of extra scalars in BSM. One of these scalars can well be responsible for the recently observed diphoton excess in the CMS and ATLAS experiments in LHC. We study the Electroweak phase transition in a myriad of scalar models in this context.

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Cited by in corpus (17)

• 750 GeV Diphoton Resonance from Singlets in an Exceptional Supersymmetric Standard Model
• An extension of two-Higgs-doublet model and the excesses of 750 GeV diphoton, muon g-2 and $h\to \mu \tau$
• Digamma, what next?
• Interpreting the 750 GeV digamma excess: a review
• Left-right asymmetry and 750 GeV diphoton excess
• Diphoton Excess and Running Couplings
• Diphoton excess at 750 GeV and LHC constraints in models with vector-like particles
• Models of LHC Diphoton Excesses Valid up to the Planck scale
• Note on Spin-2 Particle Interpretation of the 750~GeV Diphoton Excess
• Systematic Study of Diphoton Resonance at 750 GeV from Sgoldstino
• 750 GeV Di-photon Excess and Strongly First-Order Electroweak Phase Transition
• LHC signatures of neutral pseudo-Goldstone boson in the E6CHM
• Topological Structure of the Vacuum, Cosmological Constant and Dark Energy
• Learning from the New Higgs-like Scalar before It Vanishes
• Diphoton decay for a 750 GeV scalar boson in a $SU(6)\otimes U(1{)}_X$ model
• Minimal Dilaton Model and the Diphoton Excess
• Exploring high-mass diphoton resonance without new colored states