Göttingen 2025 – wissenschaftliches Programm
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T: Fachverband Teilchenphysik
T 1: Searches/BSM I (HNL, ETmiss+X)
T 1.6: Vortrag
Montag, 31. März 2025, 18:00–18:15, ZHG010
Search for New Physics in Events With an Energetic Jet and Missing Transverse Momentum With the ATLAS Experiment — •Moritz Hesping, Volker Büscher, Christian Schmitt, and Duc Bao Ta — Johannes Gutenberg Universität Mainz
A wide range of theories beyond the Standard Model predict particles which only weakly interact with SM particles. If such particles are produced in collisions at the Large Hadron Collider, they are invisible to the detector. However, their presence can be inferred from a large missing transverse momentum when they recoil off a highly energetic jet. This requires a precise estimation of the SM processes resulting in a similar signature, such as the production of Z bosons decaying to neutrinos.
Searches for new physics in such events have been previously carried out at the ATLAS experiment using the full 140 fb−1 dataset of the LHC Run 2 (2015-2018). This talk shows the progress of an updated analysis using data from the ongoing LHC Run 3, which has already exceeded Run 2 in luminosity, including an overview of the analysis strategy and data-simulation comparisons in the control regions.
Keywords: mono jet; missing energy; dark matter