IHEP OpenIR  > 粒子天体物理中心
Measurement of associated production of vector bosons and top quark-antiquark pairs in pp collisions at root s=7 TeV
CMS Collaboration
2013
发表期刊PHYSICAL REVIEW LETTERS
卷号110期号:17
通讯作者Chatrchyan, S (reprint author), Yerevan Phys Inst, Yerevan 375036, Armenia.
摘要The first measurement of vector-boson production associated with a top quark-antiquark pair in proton-proton collisions at root s = 7 TeV is presented. The results are based on a data set corresponding to an integrated luminosity of 5.0 fb(-1), recorded by the CMS detector at the LHC in 2011. The measurement is performed in two independent channels through a trilepton analysis of t (t) over barZ events and a same-sign dilepton analysis of t (t) over barV (V = W or Z) events. In the trilepton channel a direct measurement of the t (t) over barZ cross section sigma(t (t) over barZ) = 0.28(-0.11)(+0.14) (stat)(-0.03)(+0.06) (syst) pb is obtained. In the dilepton channel a measurement of the t (t) over barV cross section yields sigma(t (t) over barV) = 0.43(-0.15)(+0.17) (stat)(-0.07)(+0.09) (syst) pb. These measurements have a significance, respectively, of 3.3 and 3.0 standard deviations from the background hypotheses and are compatible, within uncertainties, with the corresponding next-to-leading order predictions of 0.137(-0.016)(+0.012) and 0.306(-0.053)(+0.031) pb. DOI: 10.1103/PhysRevLett.110.172002
关键词DETECTOR LHC
学科领域Physics
DOI10.1103/PhysRevLett.110.172002
收录类别SCI
语种英语
WOS类目Physics, Multidisciplinary
WOS记录号WOS:000318188100004
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/311005/213516
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 associated production of vector bosons and top quark-antiquark pairs in pp collisions at root s=7 TeV[J]. PHYSICAL REVIEW LETTERS,2013,110(17).
APA CMS Collaboration.(2013).Measurement of associated production of vector bosons and top quark-antiquark pairs in pp collisions at root s=7 TeV.PHYSICAL REVIEW LETTERS,110(17).
MLA CMS Collaboration."Measurement of associated production of vector bosons and top quark-antiquark pairs in pp collisions at root s=7 TeV".PHYSICAL REVIEW LETTERS 110.17(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
1480.pdf(320KB)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。