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NNLL resummation for squark-antisquark pair production at the LHC
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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.
Forward citations
Cited by 2 Pith papers
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Search for long-lived particles using displaced vertices of oppositely charged leptons in 140 fb$^{-1}$ of pp collisions at $\sqrt{s} = 13$ TeV with the ATLAS detector
No displaced dilepton vertices are observed in 140 fb^-1 of ATLAS Run-2 data, yielding leading 95% CL upper limits on LLP production for Z', gluino, and electroweakino benchmark models.
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Search for supersymmetry in proton-proton collisions at 13 TeV in final states with jets and missing transverse momentum
A 137 fb^-1 CMS search in the jets-plus-missing-momentum final state finds no supersymmetry excess and sets new 95% CL lower limits of up to 2310 GeV on the gluino mass and 1630 GeV on the squark mass.
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