标题:Search for diphoton events with large missing transverse momentum in 1 fb-1 of 7 TeV proton-proton collision data with the ATLAS detector
作者:Aad G.; Abbott B.; Abdallah J.; Abdelalim A.A.; Abdesselam A.; Abdinov O.; Abi B.; Abolins M.;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 and 更多
通讯作者地址:[Aad, G] Fakultät für Mathematik und Physik, Albert-Ludwigs-UniversitätGermany
来源:Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
出版年:2012
卷:710
期:43195
页码:519-537
DOI:10.1016/j.physletb.2012.02.054
摘要:A search for diphoton events with large missing transverse momentum has been performed using 1.07 fb-1 of proton-proton collision data at s=7 TeV recorded with the ATLAS detector. No excess of events was observed above the Standard Model prediction and 95% Confidence Level (CL) upper limits are set on the production cross section for new physics. The limits depend on each model parameter space and vary as follows: Λ<(22-129) fb in the context of a generalised model of gauge-mediated supersymmetry breaking (GGM) with a bino-like lightest neutralino, σ<(27-91) fb in the context of a minimal model of gauge-mediated supersymmetry breaking (SPS8), and σ<(15-27) fb in the context of a specific model with one universal extra dimension (UED). A 95% CL lower limit of 805 GeV, for bino masses above 50 GeV, is set on the GGM gluino mass. Lower limits of 145 TeV and 1.23 TeV are set on the SPS8 breaking scale Λ and on the UED compactification scale 1/R, respectively. These limits provide the most stringent tests of these models to date. © 2012 CERN.
收录类别:SCOPUS;SCOPUS
Scopus被引频次:24
资源类型:期刊论文
原文链接:https://www.scopus.com/inward/record.uri?eid=2-s2.0-84938558460&doi=10.1016%2fj.physletb.2012.02.054&partnerID=40&md5=075509c2003106ec5f2c98be2a1fc18c
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