Displaced decays refer to the decay of subatomic particles with a non-negligible lifetime that travel a measurable distance before disintegrating into other particles. These decays are of great interest in particle physics as they can provide insights into the fundamental properties of particles and their interactions. Displaced decays can be studied using high-energy particle colliders such as the Large Hadron Collider (LHC) at CERN, as well as through various experimental techniques in particle detectors. This research area plays a crucial role in the search for new particles and phenomena beyond the Standard Model of particle physics.