Study of scintillation detectors for direct dark matter search experiment

Observational evidence about the Universe has substantiated that normal baryonic matter only constitutes about 5% of the total mass-energy content of the Universe. A significant portion of the mass-energy content is constituted by invisible and non-relativistic Dark Matter. The identity of Dark Matter is still not known and one possible candidate is the Weakly Interacting Massive Particles (WIMPs). WIMPs occur naturally in Beyond Standard Model theories of Particle Physics which take into account supersymmetric extensions to the Standard Model. By hypothesis, WIMPs can interact only via gravitational interactions and thus, WIMPs can directly be detected only by searching for nuclear recoils produced by elastic collisions between the WIMPs and the nuclei of the detector material. The detection involves using highly sensitive and low background detectors since the event rates are expected to be of the order of 0.1 events/kg/day or even less