Measurement of the inclusive W and Z production cross sections in pp collisions at root s = 7 TeV with the CMS experiment
文献类型：期刊论文
| 作者 | CMS Collaboration |
| 刊名 | JOURNAL OF HIGH ENERGY PHYSICS
 |
| 出版日期 | 2011 |
| 期号 | 10页码:- |
| 关键词 | YAN K-FACTOR PARTON DISTRIBUTIONS ENERGIES PAIR LHC QCD |
| 通讯作者 | Chatrchyan, S (reprint author), Yerevan Phys Inst, Yerevan 375036, Armenia. |
| 英文摘要 | A measurement of inclusive W and Z production cross sections in pp collisions at root s = 7 TeV is presented. The electron and muon decay channels are analyzed in a data sample collected with the CMS detector at the LHC and corresponding to an integrated luminosity of 36 pb(-1). The measured inclusive cross sections are sigma(pp -> WX) x B(W -> lv) = 10.31 +/- 0.02 (stat.) +/- 0.09 (syst.) +/- 0.10 (th.) +/- 0.41 (lumi.) nb and sigma(pp -> ZX) x B(Z -> l(broken vertical bar) l(-)) = 0.974 +/- 0.007 (stat.) +/- 0.007 (syst.) +/- 0.018 (th.) +/- 0.039 (lumi.) nb, limited to the dilepton invariant mass range 60 to 120 GeV. The luminosity-independent cross section ratios are (sigma(pp -> WX) x B(W -> lv)) / (sigma(pp -> ZX) x B(Z -> l(+)l(-))) = 10.54 +/- 0.07 (stat.) +/- 0.08 (syst.) +/- 0.16 (th.) and (sigma(pp -> W+ X) x B(W+ -> l(+) v)) / (sigma(pp -> W- X) x B(W- -> l(-) (v) over bar)) = 1.421 +/- 0.006 (stat.) +/- 0.014 (syst.) +/- 0.029 (th.). The measured values agree with next-to-next-to-leading order QCD cross section calculations based on recent parton distribution functions. |
| 学科主题 | Physics |
| 类目[WOS] | Physics, Particles & Fields |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000296917300056 |
| 公开日期 | 2016-02-25 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/213132]  |
| 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. Measurement of the inclusive W and Z production cross sections in pp collisions at root s = 7 TeV with the CMS experiment[J]. JOURNAL OF HIGH ENERGY PHYSICS,2011(10):-. |
| APA | CMS Collaboration.(2011).Measurement of the inclusive W and Z production cross sections in pp collisions at root s = 7 TeV with the CMS experiment.JOURNAL OF HIGH ENERGY PHYSICS(10),-. |
| MLA | CMS Collaboration."Measurement of the inclusive W and Z production cross sections in pp collisions at root s = 7 TeV with the CMS experiment".JOURNAL OF HIGH ENERGY PHYSICS .10(2011):-. |
入库方式： OAI收割
来源：高能物理研究所
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