Diphoton signals in theories with large extra dimensions to NLO QCD at hadron colliders

被引：50

作者：

Kumar, M. C. ^{[1
,2
]}

Mathews, Prakash ^{[1
]}

Ravindran, V. ^{[3
]}

Tripathi, Anurag ^{[3
]}

机构：

[1] Saha Inst Nucl Phys, Kolkata 700064, W Bengal, India

[2] Univ Hyderabad, Sch Phys, Hyderabad 500046, Andhra Pradesh, India

[3] Harish Chandra Res Inst, Reg Ctr Accelerator Based Particle Phys, Allahabad, Uttar Pradesh, India

来源：

PHYSICS LETTERS B | 2009年 / 672卷 / 01期

关键词：

TO-LEADING ORDER; MODELS;

D O I：

10.1016/j.physletb.2009.01.002

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

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.

引用

页码：45 / 50

页数：6

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