Maximum likelihood reconstruction of a detector with reflective panels

The Daya Bay reactor neutrino experiment is designed to precisely determine the neutrino mixing angle θ13θ13. An innovative design of the Daya Bay antineutrino detector will use optical reflective panels at the top and the bottom of the detector cylinder. This design has been tested using a prototype detector constructed at the Institute of High Energy Physics (IHEP), Beijing. A maximum likelihood event reconstruction method has been developed and tested for such a reflective prototype detector.