Würzburg 2018 – wissenschaftliches Programm
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T: Fachverband Teilchenphysik
T 26: Suche nach Supersymmetrie I
T 26.5: Vortrag
Dienstag, 20. März 2018, 17:30–17:45, Philo-HS3
Interpretation of Long-Lived Gluino and Neutralino Signals in the ATLAS 0L (2-6 jets + MET) SUSY Search — •Veronika Magerl, Fabio Cardillo, Simone Curcio, Peter Tornambe, and Zuzana Rurikova — Universität Freiburg
Many extensions of the Standard Model (SM) include heavy coloured particles, such as the gluinos g of supersymmetric (SUSY) theories, which could be accessible at the Large Hadron Collider (LHC). Depending on the underlying theoretical SUSY model, the gluinos are assumed to show different characteristics and decay modes.
Within the R-parity conserving (RPC) MSSM, gluinos may decay promptly into final states with multiple jets and missing transverse energy (MET) carried away by the undetected lightest supersymmetric particle (LSP). In Split SUSY models the g can be a long-lived massive particle which hadronises into R-hadrons before decaying into quarks and the LSP producing signatures very similar to the promptly decaying g. Furthermore, refraining from RPC by increasing the R-parity violating (RPV) couplings, the g decays promptly but the LSP, typically the lightest neutralino χ10 decays with finite lifetime, causing again similar multiple jet and MET signatures. Hence, the reinterpretation of long-lived g and χ10 signals within the 0L (2-6 jets + MET) SUSY analysis, originally designed for the interpretation of prompt decaying g in the RPC MSSM is of particular interest.
This talk presents the latest results of these interpretations based on the √s=13 TeV dataset corresponding to an integrated luminosity of 36.1 fb−1.