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arXiv 1201.4868hep-ex
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ATLAS的双玻色子结果

Di-boson results at ATLAS

Pierre-François Giraud

摘要:

利用ATLAS探测器重建了质心能量为$\sqrt{s}$ 7 TeV的质子-质子碰撞中产生的规范玻色子对的轻子末态.基于2011年和2010年LHC数据的积分亮度光度$L=1.0 fb^{-1}$(代表WW、WZ和ZZ)和$35 pb^{-1}$(代表Wγ和Zγ)样本,测量了双玻色子总产生截面.它们被发现,连同选定的双玻色子系统的运动学分布是兼容的期望从标准模型。双玻色子的产生也给出了一个可能的异常三规范玻色子耦合的处理,为95%的置信限。

英文摘要:

Pairs of gauge boson produced in proton-proton collisions at a center-of-mass energy $\sqrt{s}$ of 7 TeV are reconstructed with the ATLAS detector in their leptonic final states. Based on samples of integrated luminosity $L=1.0 fb^{-1}$ (for WW, WZ and ZZ) and $35 pb^{-1}$ (for Wγand Zγ) of 2011 and 2010 LHC data, the total di-boson production cross sections are measured. They are found, together with the kinematic distributions of the selected di-boson systems to be compatible with the expectation from the Standard Model. The di-boson production also gives a handle on possible anomalous triple gauge boson couplings, for which 95% confidence limits are set.

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