ITP OpenIR  > SCI期刊论文
Cao, JJ; Heng, ZX; Liu, T; Yang, JM; Yang, JM (reprint author), Acad Sinica, Inst Theoret Phys, Key Lab Frontiers Theoret Phys, Beijing 100190, Peoples R China.
Di-photon Higgs signal at the LHC: A comparative study in different supersymmetric models
Source PublicationPHYSICS LETTERS B
Language英语
KeywordStandard Model Mssm Boson Neutralino Search Decay Nmssm Lep
AbstractAs the most important discovery channel for a light Higgs boson at the LHC the di-photon signal gg --> h --> gamma gamma is sensitive to underlying physics. In this work we investigate such a signal in a comparative way by considering three different supersymmetric models, namely the minimal supersymmetric standard model (MSSM), the next-to-minimal supersymmetric standard model (NMSSM) and the nearly minimal supersymmetric standard model (nMSSM). Under the current collider and cosmological constraints we scan over the parameter space and obtain the following observation in the allowed parameter space: (i) In the nMSSM the signal rate is always suppressed; (ii) In the MSSM the signal rate is suppressed in most cases, but in a tiny corner of the parameter space it can be enhanced (maximally by a factor of 2); (iii) In the NMSSM the signal rate can be enhanced or suppressed depending on the parameter space, and the enhancement factor can be as large as 7. (C) 2011 Elsevier B.V. All rights reserved.
2011
ISSN0370-2693
Volume703Issue:4Pages:462-468
Subject AreaPhysics
Indexed BySCI
Funding OrganizationJSPS [S-11028]; HASTIT [2009HASTIT004]; National Natural Science Foundation of China (NNSFC) [10821504, 10725526, 10775039, 11075045]; Chinese Academy of Sciences [KJCX2.YW.W10] ; JSPS [S-11028]; HASTIT [2009HASTIT004]; National Natural Science Foundation of China (NNSFC) [10821504, 10725526, 10775039, 11075045]; Chinese Academy of Sciences [KJCX2.YW.W10] ; JSPS [S-11028]; HASTIT [2009HASTIT004]; National Natural Science Foundation of China (NNSFC) [10821504, 10725526, 10775039, 11075045]; Chinese Academy of Sciences [KJCX2.YW.W10] ; JSPS [S-11028]; HASTIT [2009HASTIT004]; National Natural Science Foundation of China (NNSFC) [10821504, 10725526, 10775039, 11075045]; Chinese Academy of Sciences [KJCX2.YW.W10]
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Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/14267
CollectionSCI期刊论文
Corresponding AuthorYang, JM (reprint author), Acad Sinica, Inst Theoret Phys, Key Lab Frontiers Theoret Phys, Beijing 100190, Peoples R China.
Recommended Citation
GB/T 7714
Cao, JJ,Heng, ZX,Liu, T,et al. Di-photon Higgs signal at the LHC: A comparative study in different supersymmetric models[J]. PHYSICS LETTERS B,2011,703(4):462-468.
APA Cao, JJ,Heng, ZX,Liu, T,Yang, JM,&Yang, JM .(2011).Di-photon Higgs signal at the LHC: A comparative study in different supersymmetric models.PHYSICS LETTERS B,703(4),462-468.
MLA Cao, JJ,et al."Di-photon Higgs signal at the LHC: A comparative study in different supersymmetric models".PHYSICS LETTERS B 703.4(2011):462-468.
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