Search for hadronic decays of W and Z bosons in photon events in p p ¯ collisions at s = 1.96 TeV
Search for hadronic decays of W and Z bosons in photon events in p p ¯ collisions at s = 1.96 TeV
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搜索 s = 1.96 TeV 处 p p 碰撞中光子事件中 W 和 Z 玻色子的强子衰变
DOI：
10.1103/physrevd.80.052011
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发表时间：
2009
影响因子：
5
通讯作者：
Aaltonen T
中科院分区：
文献类型：
--
作者：
Aaltonen T
我们报道了利用CDF II探测器收集的数据，在包含两个喷流和一个质心能量的光子的事件中的搜索过程。提出了一种神经网络事件选择方法来优化大QCD产生背景的拒绝，结果表明，与传统的基于截断的事件选择方法相比，该方法在信噪比和信号灵敏度方面都有显著的改善。给出了生产截面随时间衰减的上限.
We report on a search for the processwithin events containing two jets and a photon at the center-of-mass energy, usingof data collected by the CDF II detector. A neural network event selection has been developed to optimize the rejection of the large QCD production background; it is shown that this method gives a significant improvement in both signal-to-noise ratio and signal sensitivity, as compared with an event selection based on conventional cuts. An upper limit is presented for theproduction cross section with theanddecaying hadronically.