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arXiv 1008.2133hep-ex
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在sqrt(s)=1.96 TeV的ppbar碰撞中寻找6.3 fb-1大失能双光子事例

Search for diphoton events with large missing transverse energy in 6.3 fb-1 of ppbar collisions at sqrt(s)=1.96 TeV

D0 Collaboration, V. Abazov

摘要:

我们报告了一个搜索的双光子事件与大失踪的横向能量产生的ppbar碰撞在sqrt(s)=1.96 TeV。这些数据是用费米实验室Tevatron对撞机的D 0探测器收集的,对应于6.3 fb-1的积分亮度。观测到的缺失的横向能量分布很好地描述了标准模型预测,和95%C. L.在标准模型之外的理论的两种实现上得到限制。在规范介导的超对称性破缺的情况下,破缺标度λ在λ < 124 TeV时被排除。在包含引力衰变的普适额外维模型中,当Rc-1 < 477 GeV时,紧化半径Rc被排除.

英文摘要:

We report a search for diphoton events with large missing transverse energy produced in ppbar collisions at sqrt(s)=1.96 TeV. The data were collected with the D0 detector at the Fermilab Tevatron Collider, and correspond to 6.3 fb-1 of integrated luminosity. The observed missing transverse energy distribution is well described by the standard model prediction, and 95% C.L. limits are derived on two realizations of theories beyond the standard model. In a gauge mediated supersymmetry breaking scenario, the breaking scale Lambda is excluded for Lambda < 124 TeV. In a universal extra dimension model including gravitational decays, the compactification radius R_c is excluded for R_c-1 < 477 GeV.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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