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Journal of High Energy Physics

, 2016:54

First Online: 11 October 2016Received: 31 August 2016Accepted: 19 September 2016 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 1.

KeywordsNLO Computations Supersymmetry Phenomenology ArXiv ePrint: 1607.07574

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Autor: M. Beneke - J. Piclum - C. Schwinn - C. Wever

Fuente: https://link.springer.com/







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