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Han, XF; Wang, L; Yang, JM; Zhu, JY; Han, XF (reprint author), Yantai Univ, Dept Phys, Yantai 264005, Peoples R China.
Little Higgs theory confronted with the LHC Higgs data
Source PublicationPHYSICAL REVIEW D
Language英语
KeywordStandard Model Boson Particle Physics Decays Signal Flavor Nmssm Mssm Mass
AbstractWe confront the little Higgs theory with the LHC Higgs search data (up to 17 fb(-1) of the combined 7 and 8 TeV run). Considering some typical models, namely, the littlest Higgs model, the littlest Higgs model with T parity (LHT-A and LHT-B), and the simplest little Higgs model, we scan over the parameter space in the region allowed by current experiments. We find that in these models the inclusive and exclusive (via gluon-gluon fusion) diphoton and ZZ* signal rates of the Higgs boson are always suppressed and approach the standard model predictions for a large-scale f. Thus, the ZZ* signal rate is within the 1 sigma range of the experimental data while the inclusive diphoton signal rate is always outside the 2 sigma range. Especially, in the LHT-A the diphoton signal rate is outside the 3 sigma range of the experimental data for f < 800 GeV. We also perform a global chi(2) fit to the available LHC and Tevatron Higgs data, and find that these models provide no better global fit to the whole data set (only for some special channels a better fit can be obtained, especially in the LHT-B). DOI: 10.1103/PhysRevD.87.055004
2013
ISSN1550-7998
Volume87Issue:5Pages:55004
Subject AreaPhysics
Indexed BySCI
Funding OrganizationNational Natural Science Foundation of China (NNSFC) [11105116, 11005089, 11275245, 10821504, 11135003, 11175151] ; National Natural Science Foundation of China (NNSFC) [11105116, 11005089, 11275245, 10821504, 11135003, 11175151] ; National Natural Science Foundation of China (NNSFC) [11105116, 11005089, 11275245, 10821504, 11135003, 11175151] ; National Natural Science Foundation of China (NNSFC) [11105116, 11005089, 11275245, 10821504, 11135003, 11175151]
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Cited Times:36[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/15403
Collection理论物理所科研产出_SCI论文
Corresponding AuthorHan, XF (reprint author), Yantai Univ, Dept Phys, Yantai 264005, Peoples R China.
Recommended Citation
GB/T 7714
Han, XF,Wang, L,Yang, JM,et al. Little Higgs theory confronted with the LHC Higgs data[J]. PHYSICAL REVIEW D,2013,87(5):55004.
APA Han, XF,Wang, L,Yang, JM,Zhu, JY,&Han, XF .(2013).Little Higgs theory confronted with the LHC Higgs data.PHYSICAL REVIEW D,87(5),55004.
MLA Han, XF,et al."Little Higgs theory confronted with the LHC Higgs data".PHYSICAL REVIEW D 87.5(2013):55004.
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