Searches for
long-lived particles in ATLAS

Particles beyond the Standard Model (SM) can generally have life times that are long compared to SM particles at the weak scale. When produced at the Large Hadron Collider (LHC), such long- lived particles (LLPs) can decay far from the primary interaction vertex and possibly themselves interact with the detector material, leading to a wide variety of detector signatures. Such LLP signatures are distinctly different from those associated with searches for promptly decaying BSM particles that constitute the bulk of searches for new physics at the LHC, often requiring dedicated analysis and reconstruction techniques. This talk will provide an overview for searches for long-lived particles performed by the ATLAS Collaboration and present latest results using 13 TeV proton–proton collision data from Run 2 of the Large Hadron Collider.