Threshold Resummation for Squark-Antisquark and Gluino-Pair Production at the LHC
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- 20 March 2009
- journal article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 102 (11) , 111802
- https://doi.org/10.1103/physrevlett.102.111802
Abstract
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.Keywords
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