Light states in real multi-Higgs models with spontaneous CP violation
D.Q. Correa*, M. Nebot and C. Miro
*: corresponding author
Full text: pdf
Published on: April 10, 2025
Abstract
In models with extended scalar sectors consisting of multiple Higgs doublets that trigger sponta-
neous electroweak symmetry breaking, it might be expected that the abundance of dimensionful
quadratic couplings in the scalar potential could allow for a regime where, apart from the would-be
Goldstone bosons and a neutral Higgs-like state, all new scalars have masses much larger than
the electroweak scale. In the case of models where CP invariance holds at the lagrangian level
but is broken by the vacuum, we show that such a reasonable expectation does not hold. When
perturbativity requirements are placed on the dimensionless quartic couplings, the spectrum of
the new scalars includes one charged and two additional neutral states whose masses cannot be
much larger than the electroweak scale.
DOI: https://doi.org/10.22323/1.481.0040
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