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arXiv · 1607.07574

NNLL soft and Coulomb resummation for squark and gluino production at the LHC

Martin Beneke·Jan Piclum·Christian Schwinn·Christopher Wever
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Abstract

We present predictions for the total cross sections for pair production of squarks and gluinos at the LHC including a combined NNLL resummation of soft and Coulomb gluon effects. We derive all terms in the NNLO cross section that are enhanced near the production threshold, which include contributions from spin-dependent potentials and so-called annihilation corrections. The NNLL corrections at $\sqrt{s}=13$ TeV range from up to $20\%$ for squark-squark production to $90\%$ for gluino pair production relative to the NLO results and reduce the theoretical uncertainties of the perturbative calculation to the $10\%$ level. Grid files with our numerical results are publicly available.

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Martin Beneke, Jan Piclum, Christian Schwinn, Christopher Wever. 2016-07-26. NNLL soft and Coulomb resummation for squark and gluino production at the LHC. https://doi.org/10.1007/jhep10(2016)054

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