SMuK 2023 – wissenschaftliches Programm

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T: Fachverband Teilchenphysik

T 27: Searches II

T 27.2: Vortrag

Dienstag, 21. März 2023, 17:15–17:30, HSZ/0403

The LHC as Lepton--Proton Collider: Searches for Resonant Production of Leptoquarks — •Daniel Buchin, Michael Holzbock, and Hubert Kroha — Max-Planck-Institut für Physik (Werner-Heisenberg-Institut), München

Searches for leptoquarks constitute an essential part of the physics programme at the ATLAS detector. These hypothetical particles couple to a lepton and a quark and are predicted by many extensions of the Standard Model such as Grand Unified Theories. The existing leptoquark searches at the LHC currently only consider production modes via quark and/or gluon interactions. The small but non-zero lepton content of the proton, however, allows also for the so far unexplored resonant leptoquark production.

This production mode gives rise to lepton-plus-jet signatures. Thus, leptoquarks would emerge as peaks over the smoothly falling Standard Model background in the invariant mass spectrum of the lepton-plus-jet system. The talk will introduce the search strategy and present the current status of the analysis, focusing on final states with fermions of the first and second generation.