Search for decays of stopped exotic long-lived particles produced in proton-proton collisions at root s=13 TeV

doi:10.1007/JHEP05(2018)127

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	Search for decays of stopped exotic long-lived particles produced in proton-proton collisions at root s=13 TeV
	CMS Collaboration
刊名	JOURNAL OF HIGH ENERGY PHYSICS
	2018
期号	5 页码:127
关键词	Beyond Standard Model Hadron-Hadron scattering (experiments)
ISSN号	1029-8479
DOI	10.1007/JHEP05(2018)127
文献子类	Article
英文摘要	A search is presented for the decays of heavy exotic long-lived particles (LLPs) that are produced in proton-proton collisions at a center-of-mass energy of 13TeV at the CERN LHC and come to rest in the CMS detector. Their decays would be visible during periods of time well separated from proton-proton collisions. Two decay scenarios of stopped LLPs are explored: a hadronic decay detected in the calorimeter and a decay into muons detected in the muon system. The calorimeter (muon) search covers a period of sensitivity totaling 721 (744) hours in 38.6 (39.0) fb(-1) of data collected by the CMS detector in 2015 and 2016. The results are interpreted in several scenarios that predict LLPs. Production cross section limits are set as a function of the mean proper lifetime and the mass of the LLPs, for lifetimes between 100 ns and 10 days. These are the most stringent limits to date on the mass of hadronically decaying stopped LLPs, and this is the fi rst search at the LHC for stopped LLPs that decay to muons.
WOS关键词	PP COLLISIONS ; CHARGED-PARTICLES ; ATLAS DETECTOR ; HEAVY
WOS研究方向	Physics
语种	英语
WOS记录号	WOS:000458432400001
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/286781]
专题	高能物理研究所_粒子天体物理中心
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	CMS Collaboration. Search for decays of stopped exotic long-lived particles produced in proton-proton collisions at root s=13 TeV[J]. JOURNAL OF HIGH ENERGY PHYSICS,2018(5):127.
APA	CMS Collaboration.(2018).Search for decays of stopped exotic long-lived particles produced in proton-proton collisions at root s=13 TeV.JOURNAL OF HIGH ENERGY PHYSICS(5),127.
MLA	CMS Collaboration."Search for decays of stopped exotic long-lived particles produced in proton-proton collisions at root s=13 TeV".JOURNAL OF HIGH ENERGY PHYSICS .5(2018):127.