4.4 Article

Geometrical CP violation in multi-Higgs models

Journal

JOURNAL OF HIGH ENERGY PHYSICS
Volume -, Issue 8, Pages -

Publisher

SPRINGER
DOI: 10.1007/JHEP08(2012)055

Keywords

Higgs Physics; Beyond Standard Model; CP violation; Discrete and Finite Symmetries

Funding

  1. DFG [PA 803/6-1]
  2. FCT [PTDC/FIS/098188/2008]

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We introduce several methods to obtain calculable phases with geometrical values that are independent of arbitrary parameters in the scalar potential. These phases depend on the number of scalars and on the order of the discrete non-Abelian group considered. Using these methods we present new geometrical CP violation candidates with vacuum expectation values that must violate CP (the transformation that would make them CP conserving is not a symmetry of the potential). We also extend to non-renormalisable potentials the proof that more than two scalars are needed to obtain these geometrical CP violation candidates.

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