Higgs sector of the minimal left-right symmetric model
نویسندگان
چکیده
We perform an exhaustive analysis of the most general Higgs sector of the minimal left-right symmetric model ~MLRM!. We find that the CP properties of the vacuum state are connected to the Higgs spectrum: if CP is broken spontaneously, the MLRM does not approach the standard model in the limit of a decoupling left-right symmetry breaking scale. Depending on the size of the CP phases, scenarios with extra nondecoupling flavor-violating doublet Higgs bosons or very light SU~2! triplet Higgs bosons emerge, both of which are ruled out by phenomenology. For zero CP phases the nonstandard Higgs bosons decouple only if a very unnatural fine-tuning condition is satisfied. We also discuss generalizations to the nonminimal Higgs sector.
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