IHEP OpenIR  > 粒子天体物理中心
Measurement of W gamma and Z gamma production in pp collisions at root s=7 TeV
CMS Collaboration
2011
发表期刊PHYSICS LETTERS B
卷号701期号:5页码:535-555
通讯作者Tenchini, R (reprint author), Ist Nazl Fis Nucl, Sez Pisa, Pisa, Italy.
摘要A measurement of W gamma and Z gamma production in proton-proton collisions at root s = 7 TeV is presented. Results are based on a data sample recorded by the CMS experiment at the LHC, corresponding to an integrated luminosity of 36 pb(-1). The electron and muon decay channels of the W and Z are used. The total cross sections are measured for photon transverse energy E-T(gamma) > 10 GeV and spatial separation from charged leptons in the plane of pseudorapidity and azimuthal angle Delta R(l.gamma) > 0.7, and with an additional dilepton invariant mass requirement of M-ll > 50 GeV for the Z gamma process. The following cross section times branching fraction values are found: sigma(pp -> W gamma + X) x B(W -> lv) = 56.3 +/- 5.0(stat.) +/- 5.0(syst.) +/- 2.3(lumi.) pb and sigma(pp -> Z gamma + X) x B(Z -> ll) = 9.4 +/- 1.0(stat.) +/- 0.6(syst.) +/- 0.4(lumi.) pb. These measurements are in agreement with standard model predictions. The first limits on anomalous WW gamma, ZZ gamma, and Z gamma gamma trilinear gauge couplings at root s = 7 TeV are set. (C) 2011 CERN. Published by Elsevier B.V. All rights reserved.
关键词GAUGE-BOSON COUPLINGS HADRON COLLIDERS AMPLITUDES ZEROS E(+)E(-) SECTOR LIMITS LEP
学科领域Physics
DOI10.1016/j.physletb.2011.06.034
收录类别SCI
语种英语
WOS类目Physics, Multidisciplinary
WOS记录号WOS:000293438100005
引用统计
被引频次:33[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/311005/213092
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. Measurement of W gamma and Z gamma production in pp collisions at root s=7 TeV[J]. PHYSICS LETTERS B,2011,701(5):535-555.
APA CMS Collaboration.(2011).Measurement of W gamma and Z gamma production in pp collisions at root s=7 TeV.PHYSICS LETTERS B,701(5),535-555.
MLA CMS Collaboration."Measurement of W gamma and Z gamma production in pp collisions at root s=7 TeV".PHYSICS LETTERS B 701.5(2011):535-555.
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
1313.pdf(685KB)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。