Early results from the 1-ton water-based liquid scintillator detector at Brookhaven National Lab

Water-based liquid scintillators (WbLS) are attractive neutrino detector materials because they allow the separation of Cherenkov and scintillation signals. Using WbLS large-scale neutrino experiments can benefit from both directional reconstruction and enhanced low-energy efficiency. Brookhaven National Lab (BNL) has long-standing expertise in developing WbLS and metal-doped liquid scintillators. We recently constructed and commissioned a 1-ton WbLS detector with excellent photo-sensor coverage and a capable data acquisition system. We will use this detector as a testbed for WbLS R&D. In this talk I will first give a brief overview of the 1-ton system. Then I will focus on the 1-ton status and early analysis results. The 1-ton detector also serves as a testbed for the next 30-tonne WbLS demonstrator currently under construction at BNL.