10–17 Jul 2019
Ghent
Europe/Brussels timezone

Search for compressed top squarks with one lepton final state in √s=13 TeV pp collisions with the ATLAS detector

15 Jul 2019, 18:30
1h 30m
ICC - Arteveldeforum (Ghent)

ICC - Arteveldeforum

Ghent

Poster Searches for New Physics Wine & Cheese Poster Session

Speaker

Zulit Paola Arrubarrena Tame (Ludwig Maximilians Universitat (DE))

Description

Natural supersymmetry suggests a light top squark (t1), possibly within the discovery reach of Run 2 of the LHC. This poster presents the latest result of an analysis targeting a compressed region of the stop phase space where the mass difference between the stop and the lightest neutralino (χ̃01) is smaller than the top-quark mass, using pp collision data collected over the full Run-2 of the LHC. A machine learning technique was employed in the analysis to improve the discrimination of signals from backgrounds dominated by the tt̄ process.

Primary author

Aurelio Juste Rozas (ICREA and IFAE (ES))

Presentation materials