Low mass Higgs signals at the LHC in the next-to-minimal supersymmetric standard model
Low mass Higgs signals at the LHC in the next-to-minimal supersymmetric standard model
In the NMSSM, because of introducing a complex singlet superfield, the lightest CP-odd Higgs boson, a 1, can be a singlet-like state with a tiny doublet component in large regions of parameter space. In this paper, we examine the discovery potential of a 1 produced in association with a bottom–antibottom pair at the LHC through ? + ? ? and ?? decay modes. It is shown that an a 1 with mass ?M Z can be extracted from the SM backgrounds by using the ? + ? ? decay channel, a possibility precluded to the MSSM. In contrast, the ?? decay mode is overwhelmed by backgrounds despite the fact that the branching ratio of this mode can reach unity when a 1 is a pure singlet.
1618-[12pp]
Almarashi, M.M.
a852b6a2-742b-4796-a0fe-bf5a73106568
Moretti, S.
b57cf0f0-4bc3-4e02-96e3-071255366614
April 2011
Almarashi, M.M.
a852b6a2-742b-4796-a0fe-bf5a73106568
Moretti, S.
b57cf0f0-4bc3-4e02-96e3-071255366614
Almarashi, M.M. and Moretti, S.
(2011)
Low mass Higgs signals at the LHC in the next-to-minimal supersymmetric standard model.
The European Physical Journal C, 71, .
(doi:10.1140/epjc/s10052-011-1618-1).
Abstract
In the NMSSM, because of introducing a complex singlet superfield, the lightest CP-odd Higgs boson, a 1, can be a singlet-like state with a tiny doublet component in large regions of parameter space. In this paper, we examine the discovery potential of a 1 produced in association with a bottom–antibottom pair at the LHC through ? + ? ? and ?? decay modes. It is shown that an a 1 with mass ?M Z can be extracted from the SM backgrounds by using the ? + ? ? decay channel, a possibility precluded to the MSSM. In contrast, the ?? decay mode is overwhelmed by backgrounds despite the fact that the branching ratio of this mode can reach unity when a 1 is a pure singlet.
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Published date: April 2011
Organisations:
Physics & Astronomy
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Local EPrints ID: 356710
URI: http://eprints.soton.ac.uk/id/eprint/356710
ISSN: 1434-6044
PURE UUID: 9d15ea09-908f-4edd-bfb5-1981136fc84c
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Date deposited: 15 Oct 2013 10:40
Last modified: 15 Mar 2024 03:17
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Author:
M.M. Almarashi
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