Measurement of (W± )W± vector-boson scattering and limits on anomalous quartic gauge couplings with the ATLAS detector
Measurement of (W± )W± vector-boson scattering and limits on anomalous quartic gauge couplings with the ATLAS detector
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DOI：
10.1103/physrevd.96.012007
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发表时间：
2017-07-28
影响因子：
5
通讯作者：
Zwalinski, L.
中科院分区：
文献类型：
--
作者：
Aaboud, M.;Aad, G.;Zwalinski, L.
本文利用大型强子对撞机ATLAS探测器记录的根s = 8 TeV的20.3 fb（-1）质子-质子碰撞数据，给出了(WW +/-)- w -+/- jj产量测量的扩展结果和异常四次规耦合的限制。分析了具有相同电荷的两个轻子（e或mu）和至少两个喷流的事件。生产截面在两个基准区域确定，对电弱和强生产机制具有不同的敏感性。引入了一个额外的基准区域，对异常四次规耦合参数α 4和α 5特别敏感，与以前的ATLAS测量相比，可以对这些参数进行更严格的限制。
This paper presents the extended results of measurements of (WW +/-)-W-+/- jj production and limits on anomalous quartic gauge couplings using 20.3 fb(-1) of proton-proton collision data at root s = 8 TeV recorded by the ATLAS detector at the Large Hadron Collider. Events with two leptons (e or mu) with the same electric charge and at least two jets are analyzed. Production cross sections are determined in two fiducial regions, with different sensitivities to the electroweak and strong production mechanisms. An additional fiducial region, particularly sensitive to anomalous quartic gauge coupling parameters alpha 4 and alpha 5, is introduced, which allows more stringent limits on these parameters compared to the previous ATLAS measurement.