Squark flavour violation and naturalness at the LHC

Abstract

While rare meson decays place stringent constraints on much of the flavour violating parameter space of supersymmetric models, the mixing between right-handed top and charm squarks is so far unconstrained by the available data. Such mixing has in fact a very appealing phenomenology: it significantly weakens the current experimental bounds from direct squark searches and leads to a modest reduction of fine-tuning. The scenario can be tested already with the present 8 TeV data set by looking for the flavour violating final state t anti-t + missing E_T, thanks to the large squark pair production cross section.

5 pages, 7 figures. Proceedings for LHCP 2013: First Large Hadron Collider Physics Conference in Barcelona, May 13-18, 2013

References in corpus (15)

• Observation of a new particle in the search for the Standard Model Higgs boson with the ATLAS detector at the LHC
• Observation of a new boson at a mass of 125 GeV with the CMS experiment at the LHC
• Efficient Identification of Boosted Semileptonic Top Quarks at the LHC
• Search for new physics in the multijet and missing transverse momentum final state in proton-proton collisions at sqrt(s) = 7 TeV
• Top Jets at the LHC
• Hierarchical Soft Terms and Flavor Physics
• Flavoured Naturalness
• Polarized Tops from Stop Decays at the LHC
• Search for supersymmetry in final states with missing transverse energy and 0, 1, 2, or at least 3 b-quark jets in 7 TeV pp collisions using the variable alphaT
• Experimental Constraints on Scharm-Stop Flavor Mixing and Implications in Top-quark FCNC Processes
• Flavour violating squark and gluino decays
• Squark Flavor Violation at the LHC
• Impact of squark generation mixing on the search for squarks decaying into fermions at LHC
• Spin Determination via Third Generation Cascade Decays
• Covariant Description of Flavor Conversion in the LHC Era