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Exploring the CP-violating NMSSM: EDM Constraints and Phenomenology

Exploring the CP-violating NMSSM: EDM Constraints and Phenomenology
Exploring the CP-violating NMSSM: EDM Constraints and Phenomenology
The Next-to-Minimal Supersymmetric extension of the Standard Model (NMSSM) features extra new sources for CP violation. In contrast to the MSSM CP violation can already occur at tree level in the Higgs sector. We investigate the range of possible allowed CP-violating phases by taking into account the constraints arising from the measurements of the Electric Dipole Moments (EDMs) and the latest LHC Higgs data. Our analysis shows that large CP-violating phases, that are NMSSM-specific, are not in conflict with the EDMs. They are dominantly constrained by the Higgs data in this case. We use our results to investigate the prospects of measuring CP violation through the combined measurement of Higgs rates, on the one hand, and in observables based on CP-violating Higgs couplings to tau leptons on the other hand.
hep-ph
0550-3213
526-555
King, S.F.
f8c616b7-0336-4046-a943-700af83a1538
Muhlleitner, M.
3f9d20e7-b07c-484d-8a8d-a00a7b522bd4
Nevzorov, R.
29e55377-613c-4b07-b29a-49fedd1f7544
Walz, K.
b59c4b14-ee0b-41ce-a606-2313cec0603f
King, S.F.
f8c616b7-0336-4046-a943-700af83a1538
Muhlleitner, M.
3f9d20e7-b07c-484d-8a8d-a00a7b522bd4
Nevzorov, R.
29e55377-613c-4b07-b29a-49fedd1f7544
Walz, K.
b59c4b14-ee0b-41ce-a606-2313cec0603f

King, S.F., Muhlleitner, M., Nevzorov, R. and Walz, K. (2015) Exploring the CP-violating NMSSM: EDM Constraints and Phenomenology. Nuclear Physics B, 901, 526-555. (doi:10.1016/j.nuclphysb.2015.11.003).

Record type: Article

Abstract

The Next-to-Minimal Supersymmetric extension of the Standard Model (NMSSM) features extra new sources for CP violation. In contrast to the MSSM CP violation can already occur at tree level in the Higgs sector. We investigate the range of possible allowed CP-violating phases by taking into account the constraints arising from the measurements of the Electric Dipole Moments (EDMs) and the latest LHC Higgs data. Our analysis shows that large CP-violating phases, that are NMSSM-specific, are not in conflict with the EDMs. They are dominantly constrained by the Higgs data in this case. We use our results to investigate the prospects of measuring CP violation through the combined measurement of Higgs rates, on the one hand, and in observables based on CP-violating Higgs couplings to tau leptons on the other hand.

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Accepted/In Press date: 3 November 2015
e-pub ahead of print date: 10 November 2015
Published date: December 2015
Additional Information: 32 pages
Keywords: hep-ph
Organisations: Theory Group

Identifiers

Local EPrints ID: 410377
URI: http://eprints.soton.ac.uk/id/eprint/410377
ISSN: 0550-3213
PURE UUID: 7cb2fd8e-b92a-496c-9c30-d56c84c99e94

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Date deposited: 07 Jun 2017 16:31
Last modified: 09 Dec 2019 18:50

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Contributors

Author: S.F. King
Author: M. Muhlleitner
Author: R. Nevzorov
Author: K. Walz

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