Karlsruhe 2024 – wissenschaftliches Programm
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T: Fachverband Teilchenphysik
T 52: Search for new particles 4 (leptoquarks, LHC)
T 52.1: Vortrag
Mittwoch, 6. März 2024, 16:00–16:15, Geb. 20.30: 1.067
Leptoquark production in a single τ charm/bottom and ETmiss final state at the ATLAS detector — •Patrick Bauer, Philip Bechtle, and Klaus Desch — Physikalisches Institut Bonn
The searches for leptoquarks (LQ), as predicted in some Grand-Unified-Theories, have been explored by collider experiments for quite a some time.
Recent results from CMS, showing a 3.4 sigma excess, consistent with contributions from non-resonant LQ processes, renewed the focus on this topic once again. Furthermore some anomalies, observed in decays of the B-hadrons into D(*) and charged Leptons, still persist and could also be explained by LQ processes.
These observations once more emphasize the importance of exploitation of all possible LQ production modes. For for LQ masses well above 1 TeV the single- and non-resonant production modes can become a key ingredient for ongoing and future searches. With the single production into final states with τ lepton(s), bottom or charm jet with large missing transverse momentum, one can directly probe the
couplings expected to be involved in the B → D(*) τ ν anomaly. For the inclusion of a non-resonant processes it is crucial to study the interference behaviour of LQ signal with the SM.
This talk will provide an overview over the ongoing search for singly produced
LQ in the τ and charm quark with high ETmiss in the final state. Furthermore ATLAS results for LQ single production in b τ τ final state will be shown.
Keywords: leptoquark; tau; charm; bottom; ATLAS