Speaker
Description
Water-based Liquid Scintillator (WbLS) has emerged as a compelling medium for next-generation, large-scale neutrino experiments. By combining the high light yield of organic scintillators with the directionality and cost-effectiveness of Cherenkov detectors, WbLS offers enhanced particle detection opportunities. Following benchtop studies characterizing the fundamental properties of WbLS, Brookhaven National Laboratory (BNL) and collaborators have transitioned to ton-scale demonstrators. We report on the performance of a 1-ton and a 30-ton detector, which have been operational for more than 3 years and 2 years, respectively. These prototypes serve as testbeds for validating the long-term stability of the WbLS medium at scale. In addition, physics parameters such as the scintillation yield, transparency and attenuation length were measured at unprecedented scale. All the latest results will be presented in the talk.