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arXiv · 0705.3472

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

Satyaki Bhattacharya·Sushil S. Chauhan·Brajesh C. Choudhary·Debajyoti Choudhury
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Abstract

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.

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Satyaki Bhattacharya, Sushil S. Chauhan, Brajesh C. Choudhary, Debajyoti Choudhury. 2007-07-28. Search for Excited Quarks in $q\bar{q} \to γγ$ at the LHC. https://doi.org/10.1103/physrevd.76.115017

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