Searches for New Physics in ATLAS with Long-Lived Particles leading to displaced jets

by Emma Torró

Tuesday 4 Mar 2025, 12:00 → 13:00 Europe/Madrid

The search for new physics beyond the Standard Model is one of the main goals of the ATLAS experiment at the Large Hadron Collider (LHC). Despite extensive studies of the vast amount of data collected by ATLAS, CMS and LHCb, no evidence of new physics has been found so far. One possible reason for this could be that new physics signatures could involve Long-Lived Particles (LLPs), which evade traditional searches due to their unconventional experimental signatures. This seminar will focus on searches for LLPs that decay into hadrons within the ATLAS detector. These signatures pose unique experimental challenges, requiring dedicated reconstruction techniques and non-standard analysis strategies to distinguish them from Standard Model and other backgrounds. We will discuss the motivation for these searches, the methodologies employed, and the latest results, as well as the future prospects for LLP searches in upcoming LHC runs.