IHEP OpenIR  > 实验物理中心
Search for long-lived stopped R-hadrons decaying out of time with pp collisions using the ATLAS detector
ATLAS collaboration
2013
发表期刊PHYSICAL REVIEW D
卷号88期号:11
通讯作者Aad, G (reprint author), Univ Freiburg, Fak Math & Phys, Hugstetter Str 55, D-79106 Freiburg, Germany.
摘要An updated search is performed for gluino, top squark, or bottom squark R-hadrons that have come to rest within the ATLAS calorimeter, and decay at some later time to hadronic jets and a neutralino, using 5.0 and 22.9 fb(-1) of pp collisions at 7 and 8 TeV, respectively. Candidate decay events are triggered in selected empty bunch crossings of the LHC in order to remove pp collision backgrounds. Selections based on jet shape and muon system activity are applied to discriminate signal events from cosmic ray and beam-halo muon backgrounds. In the absence of an excess of events, improved limits are set on gluino, stop, and sbottom masses for different decays, lifetimes, and neutralino masses. With a neutralino of mass 100 GeV, the analysis excludes gluinos with mass below 832 GeV (with an expected lower limit of 731 GeV), for a gluino lifetime between 10 mu s and 1000 s in the generic R-hadron model with equal branching ratios for decays to q (q) over bar(chi) over tilde (0) and g (chi) over tilde (0). Under the same assumptions for the neutralino mass and squark lifetime, top squarks and bottom squarks in the Regge R-hadron model are excluded with masses below 379 and 344 GeV, respectively.
关键词DYNAMICAL SUPERSYMMETRY BREAKING SUPERGAUGE TRANSFORMATIONS PARTICLES MODEL SIMULATION EXTENSION COLLIDERS CURRENTS SQUARK WEAK
学科领域Astronomy & Astrophysics; Physics
DOI10.1103/PhysRevD.88.112003
收录类别SCI
语种英语
WOS类目Astronomy & Astrophysics ; Physics, Particles & Fields
WOS记录号WOS:000328601900002
引用统计
被引频次:36[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/311005/213640
专题实验物理中心
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 long-lived stopped R-hadrons decaying out of time with pp collisions using the ATLAS detector[J]. PHYSICAL REVIEW D,2013,88(11).
APA ATLAS collaboration.(2013).Search for long-lived stopped R-hadrons decaying out of time with pp collisions using the ATLAS detector.PHYSICAL REVIEW D,88(11).
MLA ATLAS collaboration."Search for long-lived stopped R-hadrons decaying out of time with pp collisions using the ATLAS detector".PHYSICAL REVIEW D 88.11(2013).
条目包含的文件
文件名称/大小 文献类型 版本类型 开放类型 使用许可
389.pdf(2366KB)期刊论文作者接受稿限制开放CC BY-NC-SA请求全文
个性服务
推荐该条目
保存到收藏夹
查看访问统计
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[ATLAS collaboration]的文章
百度学术
百度学术中相似的文章
[ATLAS collaboration]的文章
必应学术
必应学术中相似的文章
[ATLAS collaboration]的文章
相关权益政策
暂无数据
收藏/分享
所有评论 (0)
暂无评论
 

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。