Threshold Resummation for Squark-Antisquark and Gluino-Pair Production at the LHC

被引：303

作者：

Kulesza, A. ^{[1
]}

Motyka, L. ^{[2
,3
]}

机构：

[1] DESY, D-22607 Hamburg, Germany

[2] Univ Hamburg, Inst Theoret Phys 2, D-22761 Hamburg, Germany

[3] Jagiellonian Univ, Inst Phys, PL-30059 Krakow, Poland

来源：

PHYSICAL REVIEW LETTERS | 2009年 / 102卷 / 11期

关键词：

MISSING TRANSVERSE ENERGY; QCD; SEARCH; EVENTS; JETS;

D O I：

10.1103/PhysRevLett.102.111802

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We study the effect of soft gluon emission in the hadroproduction of squark-antisquark and gluino-gluino pairs at the next-to-leading logarithmic (NLL) accuracy within the framework of the minimal supersymmetric model. The one-loop soft anomalous dimension matrices controlling the color evolution of the underlying hard-scattering processes are calculated. We present the resummed total cross sections and show numerical results for proton-proton collisions at 14 TeV. For the gluino-pair production, the theoretical uncertainty due to scale variation is reduced to the few-percent level.

引用

页数：4

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