M. Blanke: Flavour violating stop phenomenology at the LHC

by Monika Blanke (CERN)

Thursday 20 Jun 2013, 14:00 → 15:00 Europe/Berlin

HS3 (Physikdepartment)

While the presence of top partners below the TeV scale is predicted by naturalness, the search at ATLAS and CMS for these states has so far been unsuccessful. Focussing on supersymmetry, we show that a large mixing between the right-handed charm and top squarks (i) is allowed by low-energy flavour constraints; (ii) reduces the experimental bound on the stop mass; (iii) has a mild, but beneficial, effect on fine-tuning; (iv) leads to interesting signatures at the LHC not presently investigated by experiments. We estimate the impact of flavour mixing on the stop mass bound and discuss the new collider signatures.