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Chen, N; Kang, ZF; Li, JM; Chen, N (reprint author), Univ Sci & Technol China, Dept Modern Phys, Hefei 230026, Anhui, Peoples R China.; Kang, ZF (reprint author), Chinese Acad Sci, Inst Theoret Phys, KITPC, Beijing 100190, Peoples R China.; Li, JM (reprint author), Korea Inst Adv Study, Sch Phys, Seoul 130722, South Korea.; Li, JM (reprint author), Univ Adelaide, Dept Phys, ARC Ctr Excellence Particle Phys Terascale, Adelaide, SA 5005, Australia.
Missing particle associated with two bottom quarks at the LHC: Mono-b versus 2b with razor variables
Source PublicationPHYSICAL REVIEW D
Language英语
AbstractThe extended Higgs sector, such as by a second Higgs doublet of type II, provides portals to the dark sector which contain missing particles at the LHC, e.g., dark matter particles. In this paper, working in the simplified model and taking into consideration the wide decay-width effect of the mediator, we analyze the characteristic signatures of mono-b + MET and 2b + MET at the LHC. The latter signature was believed to be ineffective, while we found that, with the aid of razor shape analysis, it should be as important as the mono-b signature. In the region of relatively low mediator mass (below a few hundred GeV), by requiring a signal-to-background ratio greater than a few percent, the 2b-tagged razor analysis has comparable sensitivity to the mono-b search; it is even better for a mediator lighter than similar to 200 GeV.
2017
Volume95Issue:1Pages:15003
Subject AreaAstronomy & Astrophysics ; Physics
DOIhttp://dx.doi.org/10.1103/PhysRevD.95.015003
Funding OrganizationNational Science Foundation of China [11575176] ; National Science Foundation of China [11575176] ; National Science Foundation of China [11575176] ; National Science Foundation of China [11575176] ; Fundamental Research Funds for the Central Universities [WK2030040069] ; Fundamental Research Funds for the Central Universities [WK2030040069] ; Fundamental Research Funds for the Central Universities [WK2030040069] ; Fundamental Research Funds for the Central Universities [WK2030040069]
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Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/22156
CollectionSCI期刊论文
Corresponding AuthorChen, N; Kang, ZF; Chen, N (reprint author), Univ Sci & Technol China, Dept Modern Phys, Hefei 230026, Anhui, Peoples R China.; Kang, ZF (reprint author), Chinese Acad Sci, Inst Theoret Phys, KITPC, Beijing 100190, Peoples R China.; Li, JM (reprint author), Korea Inst Adv Study, Sch Phys, Seoul 130722, South Korea.; Li, JM (reprint author), Univ Adelaide, Dept Phys, ARC Ctr Excellence Particle Phys Terascale, Adelaide, SA 5005, Australia.
Recommended Citation
GB/T 7714
Chen, N,Kang, ZF,Li, JM,et al. Missing particle associated with two bottom quarks at the LHC: Mono-b versus 2b with razor variables[J]. PHYSICAL REVIEW D,2017,95(1):15003.
APA Chen, N.,Kang, ZF.,Li, JM.,Chen, N .,Kang, ZF .,...&Li, JM .(2017).Missing particle associated with two bottom quarks at the LHC: Mono-b versus 2b with razor variables.PHYSICAL REVIEW D,95(1),15003.
MLA Chen, N,et al."Missing particle associated with two bottom quarks at the LHC: Mono-b versus 2b with razor variables".PHYSICAL REVIEW D 95.1(2017):15003.
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