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Search for excited electrons and muons in root s=8 TeV proton-proton collisions with the ATLAS detector
ATLAS collaboration
2013
发表期刊NEW JOURNAL OF PHYSICS
卷号15
通讯作者Aad, G (reprint author), Univ Freiburg, Fak Math & Phys, Hugstetter Str 55, D-79106 Freiburg, Germany.
摘要The ATLAS detector at the Large Hadron Collider is used to search for excited electrons and excited muons in the channel pp -> ll* -> ll gamma, assuming that excited leptons are produced via contact interactions. The analysis is based on 13 fb(-1) of pp collisions at a centre-of-mass energy of 8 TeV. No evidence for excited leptons is found, and a limit is set at the 95% credibility level on the cross section times branching ratio as a function of the excited-lepton mass m(l*). For m(l*) >= 0.8 TeV, the respective upper limits on sigma B(l(*) -> l gamma) are 0.75 and 0.90 fb for the e* and mu* searches. Limits on sigma B are converted into lower bounds on the compositeness scale 3. In the special case where Lambda = m(l*), excited-electron and excited-muon masses below 2.2 TeV are excluded.
关键词LEPTON PRODUCTION EP COLLISIONS HERA QUARK
学科领域Physics
DOI10.1088/1367-2630/15/9/093011
收录类别SCI
语种英语
WOS类目Physics, Multidisciplinary
WOS记录号WOS:000324073000001
引用统计
被引频次:10[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/311005/213595
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 excited electrons and muons in root s=8 TeV proton-proton collisions with the ATLAS detector[J]. NEW JOURNAL OF PHYSICS,2013,15.
APA ATLAS collaboration.(2013).Search for excited electrons and muons in root s=8 TeV proton-proton collisions with the ATLAS detector.NEW JOURNAL OF PHYSICS,15.
MLA ATLAS collaboration."Search for excited electrons and muons in root s=8 TeV proton-proton collisions with the ATLAS detector".NEW JOURNAL OF PHYSICS 15(2013).
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