Missing particle associated with two bottom quarks at the LHC: Mono-b versus 2b with razor variables

doi:http://dx.doi.org/10.1103/PhysRevD.95.015003

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	Missing particle associated with two bottom quarks at the LHC: Mono-b versus 2b with razor variables
	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.
刊名	PHYSICAL REVIEW D
	2017
卷号	95 期号:1 页码:15003
DOI	http://dx.doi.org/10.1103/PhysRevD.95.015003
英文摘要	The 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.
学科主题	Astronomy & Astrophysics ; Physics
语种	英语
内容类型	期刊论文
源URL	[http://ir.itp.ac.cn/handle/311006/22156]
专题	理论物理研究所_理论物理所1978-2010年知识产出
通讯作者	Chen, 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.
推荐引用方式 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.