Unparticle physics at hadron collider via dilepton production

被引：43
|
作者：
Mathews, Prakash [1 ]
Ravindran, V. [2 ]
机构：
[1] Saha Inst Nucl Phys, Kolkata 700064, W Bengal, India
[2] Harish Chandra Res Inst, Reg Ctr Accelerator, Allahabad, Uttar Pradesh, India
来源：
PHYSICS LETTERS B | 2007年 / 657卷 / 4-5期
关键词：
D O I：
10.1016/j.physletb.2007.10.018
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
The scale invariant unparticle physics recently proposed by Georgi could manifest at low energies as non-integral number d(u) of invisible particles. Unparticles if existing, could couple to the Standard Model fields and consequently affect the collider phenomenology. We consider the DY process to explore effects of the peculiar propagator of the scalar and tensor unparticle operators. To probe these effects at hadron collider one needs to go beyond LO in QCD and hence the quantitative impact of QCD corrections for unparticle physics at LHC is investigated. We present the K-factors at LHC. Inclusion of QCD corrections to NLO stabilises the cross section with respect to scale variations. (c) 2007 Elsevier B.V. All rights reserved.
引用
收藏
页码：198 / 206
页数：9
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