Abstract
In this paper, we present the next-to-leading order QCD corrections for di-lepton, di-electroweak boson (ZZ, W+W-) production in both the SM and the ADD model, matched to the HERWIG parton-shower using the aMC@NLO framework. A selection of results at the 8 TeV LHC, which exhibits deviation from the SM as a result of the large extra-dimension scenario are presented.
Highlights
One important recent development has been the implementation of the di-photon production to next-toleading order (NLO) including Parton Shower (PS) in the AMC@NLO environment for the ADD model [17]
We have implemented the rest of the pair production processes ( + −, Z Z and W W ) that could contribute to the ADD model, to NLO+PS accuracy in the AMC@NLO environment
The effect of a large extra dimension is dominant in the high invariant mass region and we focus on the region Me+e− > 600 GeV to study the other distribution viz. PT, rapidity, angular distribution of the e+e− pair and look at some of the distributions of the individual lep
Summary
One important recent development has been the implementation of the di-photon production to NLO including Parton Shower (PS) in the AMC@NLO environment for the ADD model [17]. This allows for the generation of fully exclusive events that are NLO accurate for observables inclusive in QCD radiation. The s√ummation over KK√modes leads to the integral I ( / s), defined in [18], s is the center of mass energy, and is the UV cutoff of the KK modes, which is identified with the fundamental scale MS in 4 + d dimensions [18,19]. The rest of the paper is as follows: we briefly describe the framework for matching the NLO results with Parton Shower Monte Carlo in Sect. We have not chosen to do this, because the inclusion of the sum over the KK modes is non-trivial in this way
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