Shedding light with jets from the dark side with the ATLAS Experiment
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Shedding light with jets from the dark side with the ATLAS Experiment
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The ATLAS Experiment at CERN is actively searching for evidence of a "dark sector," a theoretical realm of particles and forces that interact minimally with known matter, potentially explaining dark matter. Researchers are specifically investigating "dark jets," which are sprays of dark-sector particles that could partially decay into visible particles or vanish during high-energy collisions. To distinguish these elusive signals from background noise, the experiment employs advanced artificial intelligence and machine learning models to analyse vast amounts of data. Two primary search strategies are highlighted: one targeting "semi-visible jets," which exhibit missing momentum due to undetected dark particles, and another focusing on "emerging jets," where particles appear to materialise some distance from the collision point. These studies utilise sophisticated analysis techniques, including neural networks and unique trigger systems, to place exclusion limits on theoretical mediator particles that could link the Standard Model to the dark sector.
More info here: https://arxiv.org/abs/2505.02429