A search for excited leptons in pp collisions at root s=7 TeV
文献类型：期刊论文
| 作者 | CMS Collaboration |
| 刊名 | PHYSICS LETTERS B
 |
| 出版日期 | 2011 |
| 卷号 | 704期号:3页码:143-162 |
| 关键词 | E(+)E(-) COLLISIONS HADRON COLLIDERS EP COLLISIONS FERMIONS QUARK HERA |
| 通讯作者 | Tenchini, R (reprint author), Ist Nazl Fis Nucl, Sez Pisa, Pisa, Italy. |
| 英文摘要 | A search for excited leptons is carried out with the CMS detector at the LHC, using 36 pb(-1) of pp collision data recorded at root s = 7 TeV. The search is performed for associated production of a lepton and an oppositely charged excited lepton pp -> ll*, followed by the decay l* -> l gamma, resulting in the eey final state, where l = e, mu. No excess of events above the standard model expectation is observed. Interpreting the findings in the context of l* production through four-fermion contact interactions and subsequent decay via electroweak processes, first upper limits are reported for l* production at this collision energy. The exclusion region in the compositeness scale A and excited lepton mass M-l* parameter space is extended beyond previously established limits. For Lambda = M-l*, excited lepton masses are excluded below 1070 GeV/c(2) for e* and 1090 GeV/c(2) for mu* at the 95% confidence level. (C) 2011 CERN. Published by Elsevier B.V. All rights reserved. |
| 学科主题 | Physics |
| 类目[WOS] | Physics, Multidisciplinary |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000296305800007 |
| 公开日期 | 2016-02-25 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/213125]  |
| 专题 | 高能物理研究所_粒子天体物理中心 |
| 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 | CMS Collaboration. A search for excited leptons in pp collisions at root s=7 TeV[J]. PHYSICS LETTERS B,2011,704(3):143-162. |
| APA | CMS Collaboration.(2011).A search for excited leptons in pp collisions at root s=7 TeV.PHYSICS LETTERS B,704(3),143-162. |
| MLA | CMS Collaboration."A search for excited leptons in pp collisions at root s=7 TeV".PHYSICS LETTERS B 704.3(2011):143-162. |
入库方式： OAI收割
来源：高能物理研究所
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