标题:Search for an excess of events with an identical flavour lepton pair and significant missing transverse momentum in √s = TeV proton-proton collisions with the ATLAS detector
作者:The ATLAS Collaboration; Aad G.; Abbott B.; Abdallah J.; Abdelalim A.A.; Abdesselam A.; Abdinov O.; Abi B.;等 更多
作者机构:[ Aad, G] Fakultät für Mathematik und Physik, Albert-Ludwigs-Universität, Freiburg i.Br., Germany;[ Abbott, B] Homer L. Dodge Department of Physics an 更多
通讯作者地址:The ATLAS Collaboration, CERNSwitzerland
来源:European Physical Journal C
出版年:2011
卷:71
期:7
页码:1-18
DOI:10.1140/epjc/s10052-011-1647-9
摘要:Results are presented of a search for particles decaying into final states with significant missing transverse momentum and exactly two identical flavour leptons (e, μ) of opposite charge in √s = TeV collisions at the Large Hadron Collider. This channel is particularly sensitive to supersymmetric particle cascade decays producing flavour correlated lepton pairs. Flavour uncorrelated backgrounds are subtracted using a sample of opposite flavour lepton pair events. Observation of an excess beyond Standard Model expectations following this subtraction procedure would offer one of the best routes to measuring the masses of supersymmetric particles. In a data sample corresponding to an integrated luminosity of 35 pb-1 no such excess is observed. Model-independent limits are set on the contribution to these final states from supersymmetry and are used to exclude regions of a phenomenological supersymmetric parameter space. © 2011 CERN for the benefit of the ATLAS collaboration.
收录类别:SCOPUS
Scopus被引频次:5
资源类型:期刊论文
原文链接:https://www.scopus.com/inward/record.uri?eid=2-s2.0-79960155596&doi=10.1140%2fepjc%2fs10052-011-1647-9&partnerID=40&md5=8ec519be4e7a4edc67f424ccf2b25732
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