Journal
PHYSICS LETTERS B
Volume 672, Issue 1, Pages 45-50Publisher
ELSEVIER
DOI: 10.1016/j.physletb.2009.01.002
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Funding
- CSIR, New Delhi
- Department of Atomic Energy, Govt. of India
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We present a full next-to-leading order (NLO) QCD corrections to diphoton production at the hadron colliders in both standard model and ADD model. The invariant mass and rapidity distributions of the diphotons are obtained using a semi-analytical two cut-off phase space slicing method which allows for a successful numerical implementation of various kinematical cuts used in the experiments. The fragmentation photons are systematically removed using smooth-cone-isolation Cuts Oil the photons. The NLO QCD corrections not only stabilise the perturbative predictions but also enhance the production cross section significantly. (C) 2009 Elsevier B.V. All rights reserved.
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