IHEP OpenIR  > 粒子天体物理中心
Search for narrow resonances in dilepton mass spectra in pp collisions at root s=7 TeV CMS Collaboration
CMS Collaboration
2012
发表期刊PHYSICS LETTERS B
卷号714期号:2--5页码:158-179
通讯作者Sphicas, R (reprint author), CERN, European Org Nucl Res, CH-1211 Geneva, Switzerland.
摘要A search for narrow, high-mass resonances decaying to electron or muon pairs has been performed using pp collision data collected at root s = 7 TeV by the CMS experiment in 2011. The data sample corresponds to an integrated luminosity of approximately 5 fb(-1). The event yields observed in the signal regions are consistent with predictions of the standard model backgrounds, and upper limits on the cross section times branching fraction for a resonance decaying to dileptons are extracted from a shape analysis of the dilepton invariant mass distribution. The resulting mass limits at 95% confidence level are 2330 GeV for the Z' in the Sequential Standard Model, 2000 GeV for the superstring-inspired Z'(psi) resonance, 890 (540) GeV for the Stueckelberg extension Z'(St) the mass parameter epsilon = 0.06 (0.04), and 2140 (1810) GeV for Kaluza-Klein gravitons with the coupling parameter k/(M) over bar (Pl) of 0.10 (0.05). These limits are the most stringent to date. (C) 2012 Elsevier B.V. All rights reserved.
关键词FERMION-PAIR PRODUCTION YAN K-FACTOR STANDARD MODEL E(+)E(-) COLLISIONS LEP CONSTRAINTS COLLIDERS PHYSICS HADRON
学科领域Physics
DOI10.1016/j.physletb.2012.06.051
收录类别SCI
语种英语
WOS类目Physics, Multidisciplinary
WOS记录号WOS:000307680100004
引用统计
被引频次:78[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/311005/213315
专题粒子天体物理中心
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. Search for narrow resonances in dilepton mass spectra in pp collisions at root s=7 TeV CMS Collaboration[J]. PHYSICS LETTERS B,2012,714(2--5):158-179.
APA CMS Collaboration.(2012).Search for narrow resonances in dilepton mass spectra in pp collisions at root s=7 TeV CMS Collaboration.PHYSICS LETTERS B,714(2--5),158-179.
MLA CMS Collaboration."Search for narrow resonances in dilepton mass spectra in pp collisions at root s=7 TeV CMS Collaboration".PHYSICS LETTERS B 714.2--5(2012):158-179.
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
1284.pdf(764KB)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
[CMS Collaboration]的文章
百度学术
百度学术中相似的文章
[CMS Collaboration]的文章
必应学术
必应学术中相似的文章
[CMS 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。