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arXiv 0705.3472hep-ph
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在LHC上寻找$q\bar{q} \to γγ$中的激发夸克

Search for Excited Quarks in $q\bar{q} \to γγ$ at the LHC

Satyaki Bhattacharya, Sushil S. Chauhan, Brajesh C. Choudhary, Debajyoti Choudhury

摘要:

如果夸克是复合粒子,那么激发态有望在大型强子对撞机现象中发挥作用。集中在虚拟效应,并使用CMS检测标准的很大一部分,我们在这里提出了一个现实的检查在LHC双光子生产的影响。对于不同的光度,我们提出了在$Λ-M_{q*}$参数空间中可实现的99%置信限(CL),其中$Λ$是复合尺度,M_{q^*}是状态的质量。对于质量为0.5 TeV的q^*,$Λ\leq 1.55 (2.95)$可以在99% CL和30(200)${\rm fb}^{-1}$积分亮度下被排除。

英文摘要:

If quarks are composite particles, then excited states are expected to play a rôle in the Large Hadron Collider phenomena. Concentrating on virtual effects, and using a large part of the CMS detection criteria, we present here a realistic examination of their effect in diphoton production at the LHC. For various luminosities, we present the 99 % confidence limit (CL) achievable in $Λ-M_{q*}$ parameter space where $Λ$ is the compositeness scale and M_{q^*} the mass of the state. For a q^* of mass 0.5 TeV, $Λ\leq 1.55 (2.95)$ can be excluded at 99% CL with 30 (200)${\rm fb}^{-1}$ integrated luminosity.

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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