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Scale and electroweak first-order phase transitions
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DOI：10.1093/ptep/ptv114.png)
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We consider phase transitions in the standard model (SM) without the Higgs mass term, which is coupled through a Higgs portal term to an SM singlet, classically scale-invariant gauge sector with SM singlet scalar fields. At lower energies the gauge-invariant scalar bilinear in the hidden sector forms a condensate, dynamically creating a robust energy scale, which is transmitted through the Higgs portal term to the SM sector. A scale phase transition is a transition between phases with zero and nonzero condensates. An interplay between the electroweak (EW) and scale phase transitions is therefore expected. We find that in a certain parameter space both the EW and scale phase transitions can be a strong first-order phase transition. The result is obtained by means of an effective theory for the condensation of the scalar bilinear in the mean field approximation.
Keyword:
ULTRA-WEAK SECTOR
SYMMETRY-BREAKING
FINITE-TEMPERATURE
DYNAMICAL MODEL
DARK-MATTER
HIGGS
ANALOGY
ORIGIN
BOSON
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8.3
论文数:
2.6K
被引数:
6.4K
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Natural electroweak symmetry breaking from scale invariant Higgs mechanism尺度不变希格斯机制的自然电弱对称性破缺.png)
PHYSICS LETTERS B
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PHYSICS LETTERS BIF4.5
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