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T: Fachverband Teilchenphysik

T 17: Beyond the Standard Model (Theorie) I

T 17.4: Vortrag

Montag, 15. März 2010, 17:30–17:45, HG XIV

Production of squarks and gluinos at the LHC: The electroweak contributions — •Jan Germer¹, Wolfgang Hollik¹, Edoardo Mirabella², and Maike Trenkel-Lenz³ — ¹Max-Planck-Institut für Physik, 80805 München, Deutschland — ²Institut de Physique Théorique, CEA/Saclay, 91191 Gif-sur-Yvette-Cedex, France — ³University of Wisconsin, Madison, WI, 53706, USA

If supersymmetry (SUSY) is realized at the TeV scale color–charged SUSY particles will be produced at high rate at the LHC, since the dominant production mechanisms are QCD mediated. While the LO and NLO contributions to the cross sections are well known, also electroweak (EW) contributions have to be taken into account for a reliable prediction. We first give an short overview over the class of processes and then focus on the tree-level and NLO EW contributions to squark and gluino production at the LHC. Even though EW contributions are typically small in the inclusive cross section, they can become important for specific subprocesses and in kinematic distributions. Numerical results for the different production processes will be presented.