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arXiv 0906.4819hep-ex
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sqrt{s}=1.96TeV双喷流角分布的测量及夸克复合性和额外空间维的研究

Measurement of dijet angular distributions at sqrt{s}=1.96TeV and searches for quark compositeness and extra spatial dimensions

D0 Collaboration, V. M. Abazov

摘要:

在费米实验室Tevatron对撞机上首次测量了sqrt{s}=1.96TeV的ppbar碰撞中的双喷流角分布。测量是基于一个数据集对应的积分亮度高达0.7fb-1收集的D 0检测器。在0.25TeV到1.1TeV以上的双喷流质量范围内测量了双喷流角分布。这些数据与微扰QCD的预测吻合得很好,并用于约束新的物理模型,包括夸克复合,大额外维度和TeV-1尺度额外维度。对于所有型号,我们都设置了迄今为止最严格的直接限制。

英文摘要:

We present the first measurement of dijet angular distributions in ppbar collisions at sqrt{s}=1.96TeV at the Fermilab Tevatron Collider. The measurement is based on a dataset corresponding to an integrated luminosity of up to 0.7fb-1 collected with the D0 detector. Dijet angular distributions have been measured over a range of dijet masses, from 0.25TeV to above 1.1TeV. The data are in good agreement with the predictions of perturbative QCD and are used to constrain new physics models including quark compositeness, large extra dimensions, and TeV-1 scale extra dimensions. For all models we set the most stringent direct limits to date.

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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