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 Geometrical CP violation from non-renormalisable scalar potentials


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We consider in detail the non-renormalisable scalar potential of three Higgs doublets transforming as an irreducible triplet of Delta(27) or Delta(54). We start from a renormalisable potential that spontaneously leads to a vacuum with CP-violating phases independent of arbitrary parameters - geometrical CP violation. Then we analyse to arbitrarily high order non-renormalisable terms that are consistent with the symmetry and we demonstrate that inclusion of non-renormalisable terms in the potential can preserve the geometrical CP-violating vacuum.



Autor: Ivo de Medeiros Varzielas; David Emmanuel-Costa; Philipp Leser

Fuente: https://archive.org/



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