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Benchmark scenarios for the NMSSM

Benchmark scenarios for the NMSSM
Benchmark scenarios for the NMSSM
We discuss constrained and semi-constrained versions of the next-to-minimal supersymmetric extension of the Standard Model (NMSSM) in which a singlet Higgs superfield is added to the two doublet superfields that are present in the minimal extension (MSSM). This leads to a richer Higgs and neutralino spectrum and allows for many interesting phenomena that are not present in the MSSM. In particular, light Higgs particles are still allowed by current constraints and could appear as decay products of the heavier Higgs states, rendering their search rather difficult at the LHC. We propose benchmark scenarios which address the new phenomenological features, consistent with present constraints from colliders and with the dark matter relic density, and with (semi–)universal soft terms at the GUT scale. We present the corresponding spectra for the Higgs particles, their couplings to gauge bosons and fermions and their most important decay branching ratios. A brief survey of the search strategies for these states at the LHC is given.
supersymmetry phenomenology, supersymmetric standard model
1-28
Djouadi, A.
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Drees, M.
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Ellwanger, U.
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Godbole, R.
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Hugonie, C.
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King, S.F
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Lehti, S.
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Moretti, S.
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Nikitenko, A.
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Rottlander, I.
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Schumacherh, M.
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Teixeira, A.M
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Djouadi, A.
1ad0fb00-5f70-47a5-a1f5-dd2a8079d363
Drees, M.
994bc8cb-1b61-4c4d-8d09-36c4f06d74b2
Ellwanger, U.
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Godbole, R.
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Hugonie, C.
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King, S.F
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Lehti, S.
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Moretti, S.
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Nikitenko, A.
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Rottlander, I.
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Schumacherh, M.
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Teixeira, A.M
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Djouadi, A., Drees, M., Ellwanger, U., Godbole, R., Hugonie, C., King, S.F, Lehti, S., Moretti, S., Nikitenko, A., Rottlander, I., Schumacherh, M. and Teixeira, A.M (2008) Benchmark scenarios for the NMSSM. Journal of High Energy Physics, 2008 (7), 1-28. (doi:10.1088/1126-6708/2008/07/002).

Record type: Article

Abstract

We discuss constrained and semi-constrained versions of the next-to-minimal supersymmetric extension of the Standard Model (NMSSM) in which a singlet Higgs superfield is added to the two doublet superfields that are present in the minimal extension (MSSM). This leads to a richer Higgs and neutralino spectrum and allows for many interesting phenomena that are not present in the MSSM. In particular, light Higgs particles are still allowed by current constraints and could appear as decay products of the heavier Higgs states, rendering their search rather difficult at the LHC. We propose benchmark scenarios which address the new phenomenological features, consistent with present constraints from colliders and with the dark matter relic density, and with (semi–)universal soft terms at the GUT scale. We present the corresponding spectra for the Higgs particles, their couplings to gauge bosons and fermions and their most important decay branching ratios. A brief survey of the search strategies for these states at the LHC is given.

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Published date: 1 July 2008
Keywords: supersymmetry phenomenology, supersymmetric standard model
Organisations: Physics & Astronomy

Identifiers

Local EPrints ID: 57176
URI: http://eprints.soton.ac.uk/id/eprint/57176
PURE UUID: 75900ac9-2868-4cf8-992b-4fe668f2ded9

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Date deposited: 14 Aug 2008
Last modified: 16 Dec 2019 19:16

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Contributors

Author: A. Djouadi
Author: M. Drees
Author: U. Ellwanger
Author: R. Godbole
Author: C. Hugonie
Author: S.F King
Author: S. Lehti
Author: S. Moretti
Author: A. Nikitenko
Author: I. Rottlander
Author: M. Schumacherh
Author: A.M Teixeira

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