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T: Fachverband Teilchenphysik

T 53: Jenseits des Standardmodells (Theorie) 1

T 53.5: Vortrag

Dienstag, 25. März 2014, 17:45–18:00, P6

Revisiting slepton pair production at the Large Hadron Collider — •Marcel Rothering¹, David R. Lamprea¹, Michael Klasen¹, and Benjamin Fuks² — ¹WWU Münster, Münster, Germany — ²CERN, Geneva, Switzerland

Motivated by the shift in experimental attention towards electroweak supersymmetric particle production at the CERN LHC, we update in this paper our precision predictions at next-to-leading order of perturbative QCD matched to resummation at the next-to-leading logarithmic accuracy for direct slepton pair production in proton-proton collisions. Simplified models, now commonly adopted by the experimental collaborations for selectrons and smuons as well as mixing staus, are used as benchmarks for total cross sections at achieved and future center-of-mass energies. They are presented together with the corresponding scale and parton density uncertainties in graphical and tabular form for future reference. Using modern Monte Carlo techniques, we also reanalyze recent ATLAS and CMS slepton searches in light of our precision cross sections and for various assumptions on the decomposition of the sleptons and their neutralino decay products.