Search for supersymmetry in events containing a same-flavour opposite-sign dilepton pair, jets, and large missing transverse momentum in root s=8TeV pp collisions with the ATLAS detector
文献类型:期刊论文
作者 | ATLAS Collaboration |
刊名 | EUROPEAN PHYSICAL JOURNAL C |
出版日期 | 2015 |
卷号 | 75期号:7页码:318 |
英文摘要 | Two searches for supersymmetric particles in final states containing a same-flavour opposite-sign lepton pair, jets and large missing transverse momentum are presented. The proton-proton collision data used in these searches were collected at a centre-of-mass energy root s = 8TeV by the ATLAS detector at the Large Hadron Collider and corresponds to an integrated luminosity of 20.3 fb(-1). Two leptonic production mechanisms are considered: decays of squarks and gluinos with Z bosons in the final state, resulting in a peak in the dilepton invariant mass distribution around the Z-boson mass; and decays of neutralinos (e.g.. (chi) over tilde (0)(2) -> l(+)l(-) (chi) over tilde (0)(1)), resulting in a kinematic endpoint in the dilepton invariant mass distribution. For the former, an excess of events above the expected Standard Model background is observed, with a significance of three standard deviations. In the latter case, the data are well-described by the expected Standard Model background. The results from each channel are interpreted in the context of several supersymmetric models involving the production of squarks and gluinos. |
学科主题 | Physics |
类目[WOS] | Physics, Particles & Fields |
收录类别 | SCI |
WOS记录号 | WOS:000357686000001 |
公开日期 | 2016-05-03 |
源URL | [http://ir.ihep.ac.cn/handle/311005/228593] |
专题 | 高能物理研究所_实验物理中心 |
推荐引用方式 GB/T 7714 | ATLAS Collaboration. Search for supersymmetry in events containing a same-flavour opposite-sign dilepton pair, jets, and large missing transverse momentum in root s=8TeV pp collisions with the ATLAS detector[J]. EUROPEAN PHYSICAL JOURNAL C,2015,75(7):318. |
APA | ATLAS Collaboration.(2015).Search for supersymmetry in events containing a same-flavour opposite-sign dilepton pair, jets, and large missing transverse momentum in root s=8TeV pp collisions with the ATLAS detector.EUROPEAN PHYSICAL JOURNAL C,75(7),318. |
MLA | ATLAS Collaboration."Search for supersymmetry in events containing a same-flavour opposite-sign dilepton pair, jets, and large missing transverse momentum in root s=8TeV pp collisions with the ATLAS detector".EUROPEAN PHYSICAL JOURNAL C 75.7(2015):318. |
入库方式: OAI收割
来源:高能物理研究所
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