Aachen 2019 – scientific programme

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T: Fachverband Teilchenphysik

T 5: Suche nach Neuen Teilchen I

T 5.10: Talk

Monday, March 25, 2019, 18:20–18:35, H07

Search for singly produced Lepto-Quarks decaying into a Quark and charged Leptons of the first and second generation with ATLAS — •Holger Herr and Stefan Tapprogge — Johannes-Gutenberg Universität Mainz

The most significant deviations from the Standard Model observed in recent years are flavour anomalies. Introducing new particles which carry lepton and baryon number - the so called Lepto-Quarks - to the Standard Model can explain the deviations measured in a convenient way. Since 2015 the LHC collides protons at a center of mass energy of 13 TeV at the interaction point of the ATLAS experiment. This inelastic scattering data at the highest energies ever reached in an earth based collider experiment gives great opportunity to search for these new particles at the high energy frontier. The single production channel allows to probe a higher mass range at cost of introducing some model dependency. For simplicity reasons only the decay into a quark and charged leptons of the first and second generations are considered for now. In this talk results of the search using the full Run 2 dataset recorded in proton-proton collisions by ATLAS will be presented. This includes the definition of control and validation regions to ensure good background modelling in our simulation.