Göttingen 2012 – wissenschaftliches Programm

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T: Fachverband Teilchenphysik

T 15: Beyond the Standard Model (Theorie) 1

T 15.3: Vortrag

Montag, 27. Februar 2012, 17:15–17:30, VG 3.102

Same-Sign Top Quark Production within the Flavour Violating MSSM — •Yasmin Anstruther, Michael Rauch, and Dieter Zeppenfeld — Institute for Theoretical Physics, KIT, Karlsruhe

In the MSSM, soft-susy breaking terms allow for the possibility of so-called non-minimal flavour violation (NMFV), which results in additional flavour mixing beyond the CKM matrix. This induces new contributions to squark pair production via t-channel gluino exchange and same-sign squark decays into top quarks become possible. The signal contains two b-jets and two same-sign leptons as well as missing transverse energy. We perform a Monte Carlo analysis of this signal and its corresponding backgrounds at the LHC, taking experimental constraints on the mixing parameters, e.g. from B-Physics, into account.