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Di-photon production in extra dimensional models to NLO in QCD at the LHC
(Saha Institute of Nuclear Physics)
Auletta A1 (LNF)
Di-photon production serves as an important probe in the
search of extra dimensions at the collider experiments.
At hadron colliders QCD plays an important and hence the
higher order corrections are important in making reliable
predictions of the cross sections. In this context,
we present the Next-to-leading order QCD corrections to the
di-photon production process at the LHC in ADD and RS models.
We have used semi-analytical two cut-off phase space slicing
method for the implementation of various kinematic cuts on
the final state photons and the jet. The final state collinear
singularities are suppressed using the smooth cone isolation
algorithm. We found that the NLO QCD corrections have enhanced
the cross sections and minimized the scale uncertainties associated