Join the Seminar Zoom Link: https://umich.zoom.us/j/92784237259

The 2012 discovery of the Higgs boson with the Large Hadron Collider (LHC) was a groundbreaking achievement for high energy physics. Remaining puzzles such as dark matter confirm the need for beyond the Standard Model physics, and the Higgs boson can be used as a compass to determine its nature. This talk focuses on novel searches for new physics with the ATLAS experiment on the LHC, specifically for long-lived particles and heavy resonances. Such signatures make use of the Higgs, along with advanced data analysis techniques such as machine learning and anomaly detection, for broad and unprecedented sensitivity. The High Luminosity LHC, the corresponding ATLAS detector upgrade, and studies for future experiments are all crucial for the longevity of these searches. These topics are discussed in the context of cross-field collaboration and long-term strategic planning for the continued success of the field, ensuring that no stone is left unturned in the effort to understand fundamental particle physics.