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Light minimal supersymmetric standard model Higgs boson scenario and its test at hadron colliders

Light minimal supersymmetric standard model Higgs boson scenario and its test at hadron colliders
Light minimal supersymmetric standard model Higgs boson scenario and its test at hadron colliders
We show that in the Minimal Supersymmetric Standard Model, the possibility for the lightest CP-even Higgs boson to be lighter than Z boson (as low as about 60 GeV) is, contrary to the usual belief, not yet excluded by LEP2 data or any other existing experimental data. The characteristic of the light Higgs boson scenario (LHS) is that the ZZh coupling and the decay branching ratio Br(h/A → bb‾) are simultaneously suppressed as a result of generic supersymmetric loop corrections. Consequently, the W± H± h coupling has to be large due to the sum rule of Higgs couplings to weak gauge bosons. In addition to discussing the potential of the Tevatron and B-factories to test the LHS, we show that the associate neutral and charged Higgs boson production process, pp → H± h (A), can completely probe LHS at the CERN Large Hadron Collider.
1-5
Belyaev, Alexander
6bdb9638-5ff9-4b65-a8f2-34bae3ac34b3
Cao, Qing-Hong
7946b38f-66bc-4ebe-8aeb-d45644f15192
Nomura, Daisuke
592a8d19-36c8-4ca8-9e77-373605307a2a
Tobe, Kazuhiro
b6c99788-dfb0-4667-9fb8-1c2687146740
Yuan, C.P.
5e36e1b0-c883-4bc6-9bd5-7ea18cea228d
Belyaev, Alexander
6bdb9638-5ff9-4b65-a8f2-34bae3ac34b3
Cao, Qing-Hong
7946b38f-66bc-4ebe-8aeb-d45644f15192
Nomura, Daisuke
592a8d19-36c8-4ca8-9e77-373605307a2a
Tobe, Kazuhiro
b6c99788-dfb0-4667-9fb8-1c2687146740
Yuan, C.P.
5e36e1b0-c883-4bc6-9bd5-7ea18cea228d

Belyaev, Alexander, Cao, Qing-Hong, Nomura, Daisuke, Tobe, Kazuhiro and Yuan, C.P. (2006) Light minimal supersymmetric standard model Higgs boson scenario and its test at hadron colliders. Pre-print, 1-5. (Submitted)

Record type: Article

Abstract

We show that in the Minimal Supersymmetric Standard Model, the possibility for the lightest CP-even Higgs boson to be lighter than Z boson (as low as about 60 GeV) is, contrary to the usual belief, not yet excluded by LEP2 data or any other existing experimental data. The characteristic of the light Higgs boson scenario (LHS) is that the ZZh coupling and the decay branching ratio Br(h/A → bb‾) are simultaneously suppressed as a result of generic supersymmetric loop corrections. Consequently, the W± H± h coupling has to be large due to the sum rule of Higgs couplings to weak gauge bosons. In addition to discussing the potential of the Tevatron and B-factories to test the LHS, we show that the associate neutral and charged Higgs boson production process, pp → H± h (A), can completely probe LHS at the CERN Large Hadron Collider.

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More information

Submitted date: 7 September 2006
Additional Information: arXiv:hep-ph/0609079v1
Organisations: High Energy Physics

Identifiers

Local EPrints ID: 46715
URI: http://eprints.soton.ac.uk/id/eprint/46715
PURE UUID: 0ab4d5d5-5494-4381-843b-7d6ec25536ac
ORCID for Alexander Belyaev: ORCID iD orcid.org/0000-0002-1733-4408

Catalogue record

Date deposited: 17 Jul 2007
Last modified: 08 Aug 2020 01:37

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Contributors

Author: Qing-Hong Cao
Author: Daisuke Nomura
Author: Kazuhiro Tobe
Author: C.P. Yuan

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