Asymmetric dark matter bound state

doi:http://dx.doi.org/10.1103/PhysRevD.95.043540

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	Asymmetric dark matter bound state
	Bi, XJ; Kang, ZF; Ko, P; Li, JM; Li, TJ; Bi, XJ (reprint author), Chinese Acad Sci, Inst High Energy Phys, Key Lab Particle Astrophys, Beijing 100049, 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.; Li, TJ (reprint author), Chinese Acad Sci, Inst Theoret Phys, Beijing 100190, Peoples R China.
刊名	PHYSICAL REVIEW D
	2017
卷号	95 期号:4 页码:43540
DOI	http://dx.doi.org/10.1103/PhysRevD.95.043540
英文摘要	We propose an interesting framework for asymmetric scalar dark matter (ADM), which has novel collider phenomenology in terms of an unstable ADM bound state (ADMonium) produced via Higgs portals. ADMonium is a natural consequence of the basic features of ADM: the (complex scalar) ADM is charged under a dark local U(1)(d) symmetry which is broken at a low scale and provides a light gauge boson X. The dark gauge coupling is strong and then ADM can annihilate away into X-pair effectively. Therefore, the ADM can form a bound state due to its large self-interaction via X mediation. To explore the collider signature of ADMonium, we propose that ADM has a two-Higgs doublet portal. The ADMonium can have a sizable mixing with the heavier Higgs boson, which admits a large cross section of ADMonium production associated with b (b) over bar. The resulting signature at the LHC depends on the decays of X. In this paper we consider a case of particular interest: pp -> b (b) over bar + ADMonium followed by ADMonium -> 2X -> 2e(+)e(-) where the electrons are identified as (un)converted photons. It may provide a competitive explanation to heavy di-photon resonance searches at the LHC.
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/311006/22119]
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	Kang, ZF; Ko, P; Bi, XJ (reprint author), Chinese Acad Sci, Inst High Energy Phys, Key Lab Particle Astrophys, Beijing 100049, 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.; Li, TJ (reprint author), Chinese Acad Sci, Inst Theoret Phys, Beijing 100190, Peoples R China.
推荐引用方式 GB/T 7714	Bi, XJ,Kang, ZF,Ko, P,et al. Asymmetric dark matter bound state[J]. PHYSICAL REVIEW D,2017,95(4):43540.
APA	Bi, XJ.,Kang, ZF.,Ko, P.,Li, JM.,Li, TJ.,...&Li, TJ .(2017).Asymmetric dark matter bound state.PHYSICAL REVIEW D,95(4),43540.
MLA	Bi, XJ,et al."Asymmetric dark matter bound state".PHYSICAL REVIEW D 95.4(2017):43540.