NNLL resummation for squark-antisquark pair production at the LHC

被引：56

作者：

Beenakker, Wim ^{[1
]}

Brensing, Silja ^{[2
]}

Kraemer, Michael ^{[3
]}

Kulesza, Anna ^{[3
]}

Laenen, Eric ^{[4
,5
,6
]}

Niessen, Irene ^{[1
]}

机构：

[1] Radboud Univ Nijmegen, Fac Sci, IMAPP, NL-6500 GL Nijmegen, Netherlands

[2] Theory Grp, DESY, D-22603 Hamburg, Germany

[3] Rhein Westfal TH Aachen, Inst Theoret Particle Phys & Cosmol, D-52056 Aachen, Germany

[4] Univ Amsterdam, ITFA, NL-1018 XE Amsterdam, Netherlands

[5] Univ Utrecht, ITF, NL-3584 CE Utrecht, Netherlands

[6] Nikhef Theory Grp, NL-1098 XG Amsterdam, Netherlands

来源：

JOURNAL OF HIGH ENERGY PHYSICS | 2012年 / 01期

关键词：

Supersymmetry Phenomenology; THRESHOLD RESUMMATION; QCD; SUPERSYMMETRY; SEARCH; SCATTERING; PHYSICS;

D O I：

10.1007/JHEP01(2012)076

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：

We consider the resummation of soft gluon emission for squark-antisquark pair-production at the LHC at next-to-next-to-leading-logarithmic (NNLL) accuracy in the framework of the minimal supersymmetric standard model. We present the analytical ingredients needed for the calculation and provide numerical predictions for the LHC at centre-of-mass energies of 7 and 14 TeV. We find a significant reduction in the scale uncertainty and a considerable increase in the prediction of the total cross section. Compared to the next-to-leading order prediction, the corrections increase the cross section by up to 30% for 1.5 TeV squarks at a centre-of-mass energy of 7 TeV.

引用

页数：23

共 50 条

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