CP Violation, Higgs Couplings, and Supersymmetry
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, h^0, to leptons is induced in the minimal supersymmetric standard model (MSSM). The CP violating couplin...
| Main Authors: | , , , |
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| Format: | Journal article |
| Language: | English |
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1998
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| _version_ | 1797105755012202496 |
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| author | Babu, K Kolda, C March-Russell, J Wilczek, F |
| author_facet | Babu, K Kolda, C March-Russell, J Wilczek, F |
| author_sort | Babu, K |
| collection | OXFORD |
| description | 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, h^0, to leptons is induced in the minimal supersymmetric standard model (MSSM). The CP violating couplings of h^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 (EDM) of the electron, coupled with standard universality assumptions, severly constrains any such signal. Nevertheless, extensions of the MSSM, such as the NMSSM, allow CP-violating signals as large as 100%. |
| first_indexed | 2024-03-07T06:51:53Z |
| format | Journal article |
| id | oxford-uuid:fcd554bd-9885-43c8-abca-745e684a35e1 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T06:51:53Z |
| publishDate | 1998 |
| record_format | dspace |
| spelling | oxford-uuid:fcd554bd-9885-43c8-abca-745e684a35e12022-03-27T13:24:00ZCP Violation, Higgs Couplings, and SupersymmetryJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:fcd554bd-9885-43c8-abca-745e684a35e1EnglishSymplectic Elements at Oxford1998Babu, KKolda, CMarch-Russell, JWilczek, FSupersymmetric 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, h^0, to leptons is induced in the minimal supersymmetric standard model (MSSM). The CP violating couplings of h^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 (EDM) of the electron, coupled with standard universality assumptions, severly constrains any such signal. Nevertheless, extensions of the MSSM, such as the NMSSM, allow CP-violating signals as large as 100%. |
| spellingShingle | Babu, K Kolda, C March-Russell, J Wilczek, F CP Violation, Higgs Couplings, and Supersymmetry |
| title | CP Violation, Higgs Couplings, and Supersymmetry |
| title_full | CP Violation, Higgs Couplings, and Supersymmetry |
| title_fullStr | CP Violation, Higgs Couplings, and Supersymmetry |
| title_full_unstemmed | CP Violation, Higgs Couplings, and Supersymmetry |
| title_short | CP Violation, Higgs Couplings, and Supersymmetry |
| title_sort | cp violation higgs couplings and supersymmetry |
| work_keys_str_mv | AT babuk cpviolationhiggscouplingsandsupersymmetry AT koldac cpviolationhiggscouplingsandsupersymmetry AT marchrussellj cpviolationhiggscouplingsandsupersymmetry AT wilczekf cpviolationhiggscouplingsandsupersymmetry |