Measurement of the single-top-quark t-channel cross section in pp collisions at root s=7 TeV
CMS Collaboration
刊名JOURNAL OF HIGH ENERGY PHYSICS
2012
期号12
关键词ATLAS DETECTOR
学科分类Physics
DOI10.1007/JHEP12(2012)035
通讯作者Chatrchyan, S (reprint author), Yerevan Phys Inst, Yerevan 375036, Armenia.
英文摘要A measurement of the single-top-quark t-channel production cross section in pp collisions at root s = 7TeV with the CMS detector at the LHC is presented. Two different and complementary approaches have been followed. The first approach exploits the distributions of the pseudorapidity of the recoil jet and reconstructed top-quark mass using background estimates determined from control samples in data. The second approach is based on multivariate analysis techniques that probe the compatibility of the candidate events with the signal. Data have been collected for the muon and electron final states, corresponding to integrated luminosities of 1.17 and 1.56 fb(-1), respectively. The single-top-quark production cross section in the t-channel is measured to be 67.2 +/- 6.1 pb, in agreement with the approximate next-to-next-to-leading-order standard model prediction. Using the standard model electroweak couplings, the CKM matrix element vertical bar V-tb vertical bar is measured to be 1.020 +/- 0.046 (meas.) +/- 0.017 (theor.).
类目[WOS]Physics, Particles & Fields
收录类别SCI
语种英语
WOS记录号WOS:000313123800035
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被引频次:21[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/311005/213423
专题中国科学院高能物理研究所_粒子天体物理中心_期刊论文
作者单位中国科学院高能物理研究所
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CMS Collaboration. Measurement of the single-top-quark t-channel cross section in pp collisions at root s=7 TeV[J]. JOURNAL OF HIGH ENERGY PHYSICS,2012(12).
APA CMS Collaboration.(2012).Measurement of the single-top-quark t-channel cross section in pp collisions at root s=7 TeV.JOURNAL OF HIGH ENERGY PHYSICS(12).
MLA CMS Collaboration."Measurement of the single-top-quark t-channel cross section in pp collisions at root s=7 TeV".JOURNAL OF HIGH ENERGY PHYSICS .12(2012).
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