Search for heavy particles decaying into top-quark pairs using lepton-plus-jets events in proton-proton collisions at root s=13 TeV with the ATLAS detector

doi:10.1140/epjc/s10052-018-5995-6

	Search for heavy particles decaying into top-quark pairs using lepton-plus-jets events in proton-proton collisions at root s=13 TeV with the ATLAS detector
	ATLAS Collaboration
刊名	EUROPEAN PHYSICAL JOURNAL C
	2018
卷号	78 期号:7 页码:565
ISSN号	1434-6044
DOI	10.1140/epjc/s10052-018-5995-6
文献子类	Article
英文摘要	A search for new heavy particles that decay into top-quark pairs is performed using data collected from proton-proton collisions at a centre-of-mass energy of 13 TeV by the ATLAS detector at the Large Hadron Collider. The integrated luminosity of the data sample is 36.1 fb(-1). Events consistent with top-quark pair production are selected by requiring a single isolated charged lepton, missing transverse momentum and jet activity compatible with a hadronic top-quark decay. Jets identified as likely to contain b-hadrons are required to reduce the background from other Standard Model processes. The invariant mass spectrum of the candidate top-quark pairs is examined for local excesses above the background expectation. No significant deviations from the Standard Model predictions are found. Exclusion limits are set on the production cross-section times branching ratio for hypothetical Z' bosons, Kaluza-Kein gluons and Kaluza-Klein gravitons that decay into top-quark pairs.
电子版国际标准刊号	1434-6052
WOS关键词	PARTON DISTRIBUTIONS ; HADRON-COLLISIONS ; CROSS-SECTION ; PHYSICS ; LHC ; RESUMMATION ; COLLIDERS ; ALGORITHM
WOS研究方向	Physics
语种	英语
WOS记录号	WOS:000438114500005
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/286116]
专题	高能物理研究所_实验物理中心
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	ATLAS Collaboration. Search for heavy particles decaying into top-quark pairs using lepton-plus-jets events in proton-proton collisions at root s=13 TeV with the ATLAS detector[J]. EUROPEAN PHYSICAL JOURNAL C,2018,78(7):565.
APA	ATLAS Collaboration.(2018).Search for heavy particles decaying into top-quark pairs using lepton-plus-jets events in proton-proton collisions at root s=13 TeV with the ATLAS detector.EUROPEAN PHYSICAL JOURNAL C,78(7),565.
MLA	ATLAS Collaboration."Search for heavy particles decaying into top-quark pairs using lepton-plus-jets events in proton-proton collisions at root s=13 TeV with the ATLAS detector".EUROPEAN PHYSICAL JOURNAL C 78.7(2018):565.