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München 2009 – scientific programme

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T: Fachverband Teilchenphysik

T 17: Beyond The Standard Model (Theorie) 1

T 17.3: Talk

Wednesday, March 11, 2009, 17:20–17:35, M114

Resummation for SUSY particle production at the LHCWim Beenakker1, •Silja Brensing2, Michael Krämer2, Anna Kulesza2, Eric Laenen3,4,5, and Irene Niessen11Theoretical Physics, University of Nijmegen, Nijmegen, The Netherlands — 2Institut für Theoretische Physik, RWTH Aachen University, Aachen, Germany — 3Theory Group, Nikhef, Amsterdam, The Netherlands — 4IFTA, University of Amsterdam, Amsterdam, The Netherlands — 5ITF, University of Utrecht, Utrecht, The Netherlands

The production of SUSY particles (sparticles) at the LHC is dominated by processes involving coloured sparticles in the final state. Since these processes are of uttermost importance for SUSY searches at the LHC, precise theoretical predictions are needed. Higher-order QCD corrections are dominated by large logarithmic terms due to the emission of soft gluons from initial and final state particles. A systematic treatment of these logarithms to all orders in perturbation theory is provided by resummation methods. We extend the predictive power of the theoretical results by performing resummation for coloured sparticle production processes. Analytical expressions for resummed cross sections and numerical results for the LHC are presented.

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