Göttingen 2025 – wissenschaftliches Programm

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T: Fachverband Teilchenphysik

T 66: Searches/BSM IV (BSM with Tops, LQs)

T 66.3: Vortrag

Donnerstag, 3. April 2025, 16:45–17:00, ZHG010

Search for Leptoquark pair production in bτ bτ final states with the ATLAS experiment — •Johannes Klas, Tatjana Lenz, and Jochen Dingfelder — Physikalisches Institut, Universität Bonn, Nussallee 12, 53115 Bonn

Leptoquarks are hypothetical particles that carry lepton and baryon quantum numbers and can thus decay into a quark and a lepton, which is forbidden in the Standard Model (SM). They are predicted in various theories beyond the SM, like theories of quark-lepton unification or Grand Unified Theories. Leptoquarks may offer an explanation of some of the open questions in the SM like the anomalous magnetic moment of the muon or the anomalies observed in the decay of B-Mesons into D-Mesons. The search for pair production of leptoquarks in the bτ b τ final state using Run 2 ATLAS pp collision data will be presented in this talk. New methods to reconstruct leptoquark events are explored and the limits on the cross section are compared to the previous ATLAS Run 2 results.

Keywords: Leptoquarks; ATLAS; BSM