Light Scalars at FASER

doi:10.1007/JHEP08(2023)001

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	Light Scalars at FASER
	Kling, Felix 1; Li, Shuailong 2; Song, Huayang 3; Su, Shufang 2; Su, Wei
刊名	JOURNAL OF HIGH ENERGY PHYSICS
	2023
期号	8 页码:1
关键词	ELECTROWEAK SYMMETRY-BREAKING HIGGS-BOSON CP CONSERVATION DOUBLET MODELS DARK-MATTER DECAY CONSTRAINTS PARTICLE ANATOMY SEARCH
ISSN号	1029-8479
DOI	10.1007/JHEP08(2023)001
英文摘要	FASER, the ForwArd Search ExpeRiment, is a currently operating experiment at the Large Hadron Collider (LHC) that can detect light long-lived particles produced in the forward region of the LHC interacting point. In this paper, we study the prospect of detecting light CP-even and CP-odd scalars at FASER and FASER 2. Considering a model-independent framework describing the most general interactions between a CP-even or CP-odd scalar and SM particles using the notation of coupling modifiers in the effective Lagrangian, we develop the general formalism for the scalar production and decay. We then analyze the FASER and FASER 2 reaches of light scalars in the large tan & beta; region of the Type-I two Higgs double model as a case study, in which light scalars with relatively long lifetime could be accommodated. In the two benchmark scenarios we considered, the light (pseudo)scalar decay length varies in (10(-8), 10(5)) meters. Both FASER and FASER 2 can probe a large part of the parameter space in the large tan & beta; region up to 10(7), extending beyond the constraints of the other existing experiments.
学科主题	Physics
语种	英语
内容类型	期刊论文
源URL	[http://ir.itp.ac.cn/handle/311006/28014]
专题	理论物理研究所_理论物理所1978-2010年知识产出
作者单位	1.Sun Yat sen Univ, Sch Sci, Shenzhen Campus, 66, Gongchang Rd, Shenzhen 518107, Guangdong, Peoples R China 2.Deutsch Elektronen Synchrotron DESY, Notkestr 85, D-22607 Hamburg, Germany 3.Univ Arizona, Dept Phys, Tucson, AZ 85721 USA 4.Chinese Acad Sci, Inst Theoret Phys, CAS Key Lab Theoret Phys, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Kling, Felix,Li, Shuailong,Song, Huayang,et al. Light Scalars at FASER[J]. JOURNAL OF HIGH ENERGY PHYSICS,2023(8):1.
APA	Kling, Felix,Li, Shuailong,Song, Huayang,Su, Shufang,&Su, Wei.(2023).Light Scalars at FASER.JOURNAL OF HIGH ENERGY PHYSICS(8),1.
MLA	Kling, Felix,et al."Light Scalars at FASER".JOURNAL OF HIGH ENERGY PHYSICS .8(2023):1.