Exploring QCD uncertainties when setting limits on compressed supersymmetric spectra

被引:41
|
作者
Dreiner, Herbert [1 ,2 ]
Kraemer, Michael [3 ]
Tattersall, Jamie [1 ,2 ]
机构
[1] Univ Bonn, Inst Phys, D-53115 Bonn, Germany
[2] Univ Bonn, Bethe Ctr Theoret Phys, D-53115 Bonn, Germany
[3] Rhein Westfal TH Aachen, Inst Theoret Particle Phys & Cosmol, D-52056 Aachen, Germany
关键词
CONFIDENCE-INTERVALS; GLUINO PRODUCTION; SQUARK;
D O I
10.1103/PhysRevD.87.035006
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
If supersymmetry (SUSY) has a compressed spectrum the current limits from the LHC can be drastically reduced. We take possible "worst case" scenarios where combinations of the top squark, squark and gluino masses are degenerate with the mass of the lightest SUSY particle. To accurately derive limits in the model, care must be taken when describing QCD radiation and we examine this in detail. Lower mass bounds are then produced by considering all the 7 TeV hadronic SUSY and monojet searches. The evolution of the limits as the mass splitting is varied is also presented. DOI: 10.1103/PhysRevD.87.035006
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页数:16
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