Search for electroweak production of supersymmetric particles in final states with two or three leptons at $$\sqrt{s}=13\hbox {TeV}$$s=13TeVwith the ATLAS detector

doi:10.1140/epjc/s10052-018-6423-7

	Search for electroweak production of supersymmetric particles in final states with two or three leptons at $$\sqrt{s}=13\hbox {TeV}$$s=13TeVwith the ATLAS detector
	ATLAS Collaboration
刊名	EUROPEAN PHYSICAL JOURNAL C
	2018
卷号	78 期号:12 页码:995
ISSN号	1434-6044
DOI	10.1140/epjc/s10052-018-6423-7
文献子类	Article
英文摘要	A search for the electroweak production of charginos, neutralinos and sleptons decaying into final states involving two or three electrons or muons is presented. The analysis is based on 36.1 fb(-1) of root s = 13 TeV protonproton collisions recorded by the ATLAS detector at the Large Hadron Collider. Several scenarios based on simplified models are considered. These include the associated production of the next-to-lightest neutralino and the lightest chargino, followed by their decays into final states with leptons and the lightest neutralino via either sleptons or Standard Model gauge bosons; direct production of chargino pairs, which in turn decay into leptons and the lightest neutralino via intermediate sleptons; and slepton pair production, where each slepton decays directly into the lightest neutralino and a lepton. No significant deviations from the Standard Model expectation are observed and stringent limits at 95% confidence level are placed on the masses of relevant supersymmetric particles in each of these scenarios. For a massless lightest neutralino, masses up to 580 GeV are excluded for the associated production of the next-to-lightest neutralino and the lightest chargino, assuming gauge-boson mediated decays, whereas for slepton-pair production masses up to 500 GeV are excluded assuming three generations of mass-degenerate sleptons.
电子版国际标准刊号	1434-6052
WOS关键词	PP COLLISIONS ; PARTON DISTRIBUTIONS ; GLUINO PRODUCTION ; MEASURING MASSES ; CROSS-SECTION ; PLUS PLUS ; Z BOSON ; ENERGY ; SQUARK ; EXTENSION
WOS研究方向	Physics
语种	英语
WOS记录号	WOS:000452335500003
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/286964]
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 electroweak production of supersymmetric particles in final states with two or three leptons at $$\sqrt{s}=13\hbox {TeV}$$s=13TeVwith the ATLAS detector[J]. EUROPEAN PHYSICAL JOURNAL C,2018,78(12):995.
APA	ATLAS Collaboration.(2018).Search for electroweak production of supersymmetric particles in final states with two or three leptons at $$\sqrt{s}=13\hbox {TeV}$$s=13TeVwith the ATLAS detector.EUROPEAN PHYSICAL JOURNAL C,78(12),995.
MLA	ATLAS Collaboration."Search for electroweak production of supersymmetric particles in final states with two or three leptons at $$\sqrt{s}=13\hbox {TeV}$$s=13TeVwith the ATLAS detector".EUROPEAN PHYSICAL JOURNAL C 78.12(2018):995.