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Search for stable hadronising squarks and gluinos with the ATLAS experiment at the LHC
ATLAS Collaboration
2011
发表期刊PHYSICS LETTERS B
卷号701期号:1页码:1-19
通讯作者Arik, E (reprint author), Bogazici Univ, Dept Phys, Istanbul, Turkey.
摘要Hitherto unobserved long-lived massive particles with electric and/or colour charge are predicted by a range of theories which extend the Standard Model. In this Letter a search is performed at the ATLAS experiment for slow-moving charged particles produced in proton-proton collisions at 7 TeV centre-of-mass energy at the LHC, using a data-set corresponding to an integrated luminosity of 34 pb(-1). No deviations from Standard Model expectations are found. This result is interpreted in a framework of supersymmetry models in which coloured sparticles can hadronise into long-lived bound hadronic states, termed R-hadrons, and 95% CL limits are set on the production cross-sections of squarks and gluinos. The influence of R-hadron interactions in matter was studied using a number of different models, and lower mass limits for stable sbottoms and stops are found to be 294 and 309 GeV respectively. The lower mass limit for a stable gluino lies in the range from 562 to 586 GeV depending on the model assumed. Each of these constraints is the most stringent to date. (C) 2011 CERN. Published by Elsevier B.V. All rights reserved.
关键词E(+)E(-) COLLISIONS PARTICLES DETECTOR COLLIDERS
学科领域Physics
DOI10.1016/j.physletb.2011.05.010
收录类别SCI
语种英语
WOS类目Physics, Multidisciplinary
WOS记录号WOS:000292719700001
引用统计
被引频次:54[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/213077
专题实验物理中心
作者单位中国科学院高能物理研究所
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ATLAS Collaboration. Search for stable hadronising squarks and gluinos with the ATLAS experiment at the LHC[J]. PHYSICS LETTERS B,2011,701(1):1-19.
APA ATLAS Collaboration.(2011).Search for stable hadronising squarks and gluinos with the ATLAS experiment at the LHC.PHYSICS LETTERS B,701(1),1-19.
MLA ATLAS Collaboration."Search for stable hadronising squarks and gluinos with the ATLAS experiment at the LHC".PHYSICS LETTERS B 701.1(2011):1-19.
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