Kumar, M. C. ; Mathews, Prakash ; Ravindran, V. ; Tripathi, Anurag (2009) Diphoton signals in theories with large extra dimensions to NLO QCD at hadron colliders Nuclear Physics B, 672 (1). pp. 45-50. ISSN 0550-3213
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Official URL: http://www.sciencedirect.com/science/article/pii/S...
Related URL: http://dx.doi.org/10.1016/j.physletb.2009.01.002
Abstract
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 on the photons. The NLO QCD corrections not only stabilise the perturbative predictions but also enhance the production cross section significantly.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Elsevier Science. |
| ID Code: | 84928 |
| Deposited On: | 28 Feb 2012 04:15 |
| Last Modified: | 28 Feb 2012 04:15 |
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