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arXiv 1306.1126hep-ex
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在sqrt(s)= 7 TeV时pp碰撞中W+W-截面的测量和反常WW γ和WWZ耦合的限制

Measurement of the W+W- cross section in pp collisions at sqrt(s) = 7 TeV and limits on anomalous WW gamma and WWZ couplings

CMS Collaboration

摘要:

本文报道了在sqrt(s)= 7 TeV的pp碰撞中的W+W ~-产生的测量结果.这些数据是用大型强子对撞机的CMS探测器收集的,对应的积分亮度为4.92 +/- 0.11逆毫微微巴恩斯。W+W-候选者由两个带相反电荷的轻子,电子或μ子组成,伴随着大的横向能量缺失。W+W-生产截面测量值为52.4 +/- 2.0(统计)+/- 4.5(系统)+/- 1.2(lum.)PB.该测量结果与标准模型预测的次领先级47.0 +/- 2.0 pb一致。严格的限制WW伽玛和WWZ异常三重规范玻色子耦合。

英文摘要:

A measurement of W+W- production in pp collisions at sqrt(s) = 7 TeV is presented. The data were collected with the CMS detector at the LHC, and correspond to an integrated luminosity of 4.92 +/- 0.11 inverse femtobarns. The W+W- candidates consist of two oppositely charged leptons, electrons or muons, accompanied by large missing transverse energy. The W+W- production cross section is measured to be 52.4 +/- 2.0 (stat.) +/- 4.5 (syst.) +/- 1.2 (lum.) pb. This measurement is consistent with the standard model prediction of 47.0 +/- 2.0 pb at next-to-leading order. Stringent limits on the WW gamma and WWZ anomalous triple gauge-boson couplings are set.

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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