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arXiv 0903.4800hep-ex
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在Tau末态中寻找标准模型希格斯玻色子

Search for the standard model Higgs boson in tau final states

D0 Collaboration, V. Abazov

摘要:

我们提出了一个搜索的标准模型希格斯玻色子玻色子使用强子衰变τ轻子,在1个反femtobarn的数据收集与D0探测器在费米实验室Tevatron ppbar对撞机。我们选择两个最终状态:τ加上丢失的横向能量和b喷流,和τ + τ-加喷流。这些末态对相关的W/Z玻色子加希格斯玻色子、矢量玻色子融合和胶子-胶子融合产生过程的组合很敏感。在95%CL处希格斯产生截面上观察到的组合极限比对于质量为115 GeV的希格斯玻色子玻色子,标准模型的期望值是29。

英文摘要:

We present a search for the standard model Higgs boson using hadronically decaying tau leptons, in 1 inverse femtobarn of data collected with the D0 detector at the Fermilab Tevatron ppbar collider. We select two final states: tau plus missing transverse energy and b jets, and tau+ tau- plus jets. These final states are sensitive to a combination of associated W/Z boson plus Higgs boson, vector boson fusion and gluon-gluon fusion production processes. The observed ratio of the combined limit on the Higgs production cross section at the 95% C.L. to the standard model expectation is 29 for a Higgs boson mass of 115 GeV.

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