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arXiv 1607.06975hep-ex
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sqrt(s)= 8 TeV质子-质子碰撞中W玻色子和两个前向喷注的电弱产生测量

Measurement of electroweak production of a W boson and two forward jets in proton-proton collisions at sqrt(s) = 8 TeV

CMS Collaboration

摘要:

本文测量了质心能量为8 TeV的质子-质子碰撞中与两个喷注相关联的W玻色子的电弱产生的截面。该数据集是用CMS检测器收集的,对应于19.3毫微微电子能的积分亮度。测量了W玻色子衰变为电子或μ子的基准截面,以及pT(j1)> 60 GeV,pT(j2)> 50 GeV,|η(j)|< 4.7,且m(jj)> 1000 GeV为0.42 +/- 0.04(stat)+/- 0.09(syst)+/- 0.01(lumi)pb。该结果与使用与PYTHIA 6.4接口的MADGRAPH5_aMC@NLO 2.1获得的标准模型前导阶预测值0.50 +/-0.02(比例)+/- 0.02(PDF)pb一致。这是该工艺的第一次截面测量。

英文摘要:

A measurement is presented of the cross section for the electroweak production of a W boson in association with two jets in proton-proton collisions at a center-of-mass energy of 8 TeV. The data set was collected with the CMS detector and corresponds to an integrated luminosity of 19.3 inverse femtobarns. The measured fiducial cross section for W bosons decaying to electrons or muons and for pT(j1) > 60 GeV, pT(j2) > 50 GeV, |eta(j)| < 4.7, and m(jj) > 1000 GeV is 0.42 +/- 0.04 (stat) +/- 0.09 (syst) +/- 0.01 (lumi) pb. This result is consistent with the standard model leading-order prediction of 0.50 +/- 0.02 (scale) +/- 0.02 (PDF) pb obtained with MADGRAPH5_aMC@NLO 2.1 interfaced to PYTHIA 6.4. This is the first cross section measurement for this process.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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