Direct photon pair production at the LHC to O(αS) in TeV scale gravity models

被引：54

作者：

Kumar, M. C. ^{[2
,3
]}

Mathews, Prakash ^{[3
]}

Ravindran, V. ^{[1
]}

Tripathi, Anurag ^{[1
]}

机构：

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

[2] Saha Inst Nucl Phys, Kolkata 700064, India

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

来源：

NUCLEAR PHYSICS B | 2009年 / 818卷 / 1-2期

关键词：

LARGE EXTRA DIMENSIONS; TO-LEADING ORDER; QCD CORRECTIONS; NLO-QCD; HIERARCHY; PHENOMENOLOGY;

D O I：

10.1016/j.nuclphysb.2009.03.022

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

The first results on next-to-leading order QCD corrections to production of direct photon pairs in hadronic collisions in the extra dimension models - ADD and RS are presented. Various kinematical distributions are obtained to order alpha(S) in QCD by taking into account all the parton level subprocesses. Our Monte Carlo based code incorporates all the experimental cuts suitable for physics studies at the LHC. We estimate the impact of the QCD corrections on various observables and find that they are significant. We also show the reduction in factorization scale uncertainty when O(alpha(S)) effects are included. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：28 / 51

页数：24

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