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首页> 外文会议>International Conference on Particles and Nuclei >Searches for WZ and ZZ diboson production in final states with jets and charged leptons or missing transverse energy at CDF
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Searches for WZ and ZZ diboson production in final states with jets and charged leptons or missing transverse energy at CDF

机译：在最终状态中搜索WZ和ZZ Diboson生产的喷气机和带电的Leptons或CDF缺失的横向能量

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摘要

We present the results from two studies aimed at an experimental measurement of the WZ/ZZ diboson production in the leptons + jets final state using data recorded with the CDF II detector at the Fermilab Tevatron collider. Because diboson production is topologically similar to associated Higgs production with a W or Z boson, searches for diboson production in partially hadronic decay channels offer a chance to develop and refine new analysis techniques that may aid in the discovery of the Higgs boson. We show the results of a search for WZ and ZZ production in events where there are at least two jets and a large transverse momentum imbalance. To improve our sensitivity, we employ a new artificial-neural-network (ANN) based b tagger to identify jets likely originating from heavy-flavor quarks. We also show recent progress on a search for diboson production in the charged leptons and jets final state, where we select events by identifying those containing two charged leptons with a reconstructed invariant mass near the mass of the Z boson, at least two jets, and low transverse missing energy. Here we employ a new ANN based quark/gluon discriminant to reduce the contribution from our dominant background, Z + jets production.
机译：我们介绍了两项研究的结果，该研究旨在使用在Fermilab Tevatron撞机的CDF II探测器中记录的数据记录的数据进行WZ / ZZ Diboson生产的实验测量。由于Diboson生产在拓扑上类似于与W或Z玻色子的相关的HIGGS生产，因此部分地下衰减通道中的Diboson生产搜索提供了有机会开发和改进可能有助于发现HIGGS玻色子的新分析技术。我们展示了在至少有两个喷射器和大横向动量不平衡的事件中寻找WZ和ZZ生产的结果。为了提高我们的敏感性，我们采用了一种基于新的人工网络（ANN）的B标签，以识别可能源自重磅夸克的喷气机。我们还显示了最近在收费的Leptons和喷气机最终状态下搜索Diboson生产的进展，在那里我们通过识别包含两个带有两个带电的Leptons的那些具有重建的不变质量，Z玻色子，至少两个喷射器，以及低横向缺失能量。在这里，我们采用了一个新的Ann基夸克/胶合族歧视，以减少我们主要背景，Z +喷气机生产的贡献。

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