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Resonant CP-Violating Scalar--Pseudoscalar Transitions at mu+ mu- Colliders

Apostolos Pilaftsis
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Abstract

A mu+ mu- collider is an appealing machine to probe resonant CP-violating transitions of a CP-even Higgs particle into the Z boson or into another CP-odd Higgs scalar. These phenomena are studied within a manifestly gauge-invariant approach implemented by the pinch technique. The CP invariance of an extended Higgs sector motivated by supersymmetric E_6 models is assumed to be broken radiatively by the presence of heavy Majorana fermions. CP violation originating from Higgs-Z mixing is found to be very modest, whereas CP-number violating transitions involving Higgs scalars only can be resonantly enhanced up to order of unity.

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Apostolos Pilaftsis. 1996-12-04. Resonant CP-Violating Scalar--Pseudoscalar Transitions at mu+ mu- Colliders. https://doi.org/10.1103/physrevlett.77.4996

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