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NNLL resummation for stop pair-production at the LHC
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نویسنده
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Beenakker Wim ,Borschensky Christoph ,Heger Raphael ,Krämer Michael ,Kulesza Anna ,Laenen Eric
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منبع
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journal of high energy physics - 2016 - دوره : 2016 - شماره : 5 - صفحه:1 -24
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چکیده
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The production of supersymmetric stop-antistop pairs at the large hadron collider (lhc) is studied including corrections from soft-gluon resummation up to next-to-next-to-leading logarithmic (nnll) accuracy in the mellin-space approach. additionally, corrections to the hard-matching coefficient at one-loop and coulomb contributions at two-loop order are considered. the nnll corrections enhance the cross section for all stop masses at centre-of-mass energies of 8 and 13 tev compared to the previously calculated predictions at next-to-leading logarithmic (nll) accuracy. furthermore, a slight increase in the dependence on the additional stop-mixing parameters is observed.
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کلیدواژه
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Supersymmetry Phenomenology
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آدرس
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Radboud University Nijmegen, The Netherlands. University of Amsterdam, The Netherlands, Institute for Theoretical Physics, Germany, Institute for Theoretical Physics, Germany, RWTH Aachen University, Germany, Institute for Theoretical Physics, Germany, University of Amsterdam, The Netherlands. Utrecht University, The Netherlands. Nikhef Theory Group, The Netherlands
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Authors
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