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arXiv 1107.3084hep-ex
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sqrt(s)= 7 TeV pp碰撞中三喷流共振的研究

Search for Three-Jet Resonances in pp Collisions at sqrt(s) = 7 TeV

The CMS Collaboration

摘要:

CMS协作组在LHC上对质心能量为7 TeV的pp碰撞中三喷流强子共振的产生进行了与模型无关的研究,使用的数据样本对应于35个倒数皮巴的积分亮度。分析了具有高喷流多重数和大喷流横向动量标量和的事件。预期的标准模型背景事件的数量被发现是在良好的协议与观察到的事件。在描述破坏R宇称的超对称胶子对的产生的模型上设定了极限,并且首次在95%的置信水平上排除了质量在200 ~ 280 GeV/c^2之间的胶子对。

英文摘要:

A model-independent search for three-jet hadronic resonance production in pp collisions at a center-of-mass energy of 7 TeV has been conducted by the CMS Collaboration at the LHC, using a data sample corresponding to an integrated luminosity of 35 inverse picobarns. Events with high jet multiplicity and a large scalar sum of jet transverse momenta are analyzed. The number of expected standard model background events is found to be in good agreement with the observed events. Limits are set on a model describing the production of R-parity-violating supersymmetric gluino pairs, and gluino masses in the range of 200 to 280 GeV/c^2 are excluded at a 95% confidence level for the first time.

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