Asymmetric dark matter bound state

doi:10.1103/PhysRevD.95.043540

CORC > 高能物理研究所 > 中国科学院高能物理研究所 > 粒子天体物理中心

	Asymmetric dark matter bound state
	Li, TJ; Ko, P; Kang, ZF; Bi, XJ; Li, JM; Bi XJ(毕效军)
刊名	PHYSICAL REVIEW D
	2017
卷号	95 期号:4 页码:43540
ISSN号	2470-0010
DOI	10.1103/PhysRevD.95.043540
文献子类	Article
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.
电子版国际标准刊号	2470-0029
WOS研究方向	Astronomy & Astrophysics ; Physics
语种	英语
WOS记录号	WOS:000396025800006
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/284271]
专题	高能物理研究所_粒子天体物理中心中国科学院高能物理研究所_中国散裂中子源
作者单位	中国科学院高能物理研究所
推荐引用方式 GB/T 7714	Li, TJ,Ko, P,Kang, ZF,et al. Asymmetric dark matter bound state[J]. PHYSICAL REVIEW D,2017,95(4):43540.
APA	Li, TJ,Ko, P,Kang, ZF,Bi, XJ,Li, JM,&毕效军.(2017).Asymmetric dark matter bound state.PHYSICAL REVIEW D,95(4),43540.
MLA	Li, TJ,et al."Asymmetric dark matter bound state".PHYSICAL REVIEW D 95.4(2017):43540.