Probing top-philic sgluons with LHC Run I data

25 Aug 2015, 16:50
20m
Mountain ()

Mountain

Supersymmetry Phenomenology and Experiment SUSY Expt. and Phenomenology

Speaker

James Michael Keaveney (Vrije Universiteit Brussel (VUB) - Interuniversitary Institute for high energies (IIHE) (BE))

Description

Many theories beyond the Standard Model predict the existence of colored scalar states, known as sgluons. Sgluons are expected to be copiously pair-produced at the LHC via strong interactions. In scenarios where they are top-philic, such as SUSY with Dirac gauginos, sgluons can be sought in multitop events at the LHC. We revisit two LHC Run I analyses that utilise events with either the same-sign dileptonic or single leptonic decay of a four-top-quark system. Employing both parameterisations of the detector response and a novel Matrix-Element method, reinterpretation of these two analyses are performed in the context of sgluon production. Adopting a simplified model approach, this reinterpretation allows us to extract bounds on the sgluon mass, and for the first time in the field, its couplings.

Primary author

James Michael Keaveney (Vrije Universiteit Brussel (VUB) - Interuniversitary Institute for high energies (IIHE) (BE))

Co-authors

Benjamin Fuks (Institut Pluridisciplinaire Hubert Curien (FR)) Didar Dobur (Ghent University (BE)) Freya Blekman (IIHE, Vrije Universiteit Brussel (BE)) Kentarou Mawatari (Vrije Univ. Brussel) Lana Margaret Gwen Beck (University of Bristol (GB))

Presentation Materials