CP violation, Higgs couplings, and supersymmetry

Journal Article · Fri Jan 01 00:00:00 EST 1999 · Physical Review, D

DOI:https://doi.org/10.1103/PhysRevD.59.016004· OSTI ID:289038

Babu, K S; Kolda, C; March-Russell, J; Wilczek, F ^[1]

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1. School of Natural Sciences, Institute for Advanced Study, Princeton, New Jersey 08540 (United States)

Supersymmetric extensions of the standard model generically contain additional sources of CP violation. We discuss how at one loop a potentially large CP violating coupling of the lightest Higgs boson h{sup 0} to leptons is induced in the minimal supersymmetric standard model (MSSM). The CP violating couplings of h{sup 0} in extensions of the MSSM, such as the next-to-minimal supersymmetric standard model (NMSSM) are also considered. We indicate how this CP violation might be observed; in particular a polarization-dependent production asymmetry, in the context of a muon collider, provides a means to access this coupling cleanly. In the MSSM, existing limits on the electric dipole moment of the electron, coupled with standard universality assumptions, severely constrains any such signal. Nevertheless, extensions of the MSSM, such as the NMSSM, allow CP-violating signals as large as 100{percent}. {copyright} {ital 1998} {ital The American Physical Society}

• OSTI ID: 289038
• Journal Information: Physical Review, D, Journal Name: Physical Review, D Journal Issue: 1 Vol. 59; ISSN 0556-2821; ISSN PRVDAQ
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
CP INVARIANCE
HIGGS BOSONS
STANDARD MODEL
SUPERSYMMETRY