Expression of Interest: The Atmospheric Neutrino Neutron Interaction Experiment (ANNIE)

• DOI: 10.48550/arxiv.1402.6411
• Publication Date: 2014-01-01
• Authors: I. M. Anghel; G. S. Davies; E. Ramberg; J. G. Learned; C Grosso Pilcher; M. Yeh; M. Bergevin; Robert Wagner; L. A. Winslow; S. M. Usman; T. Katori; M. Wetstein; M. Smy; J. F. Beacom; R. Northrop; G. Varner; Glenn Jocher; A. Elagin; M. C. Sánchez; Richard J. Hill; R. Svoboda; H. Frisch; H. Sobel; M. R. Vagins; F. Di Lodovico
• Keywords: Cherenkov detector

Neutron tagging in Gadolinium-doped water may play a significant role reducing backgrounds from atmospheric neutrinos next generation proton-decay searches using megaton-scale Water Cherenkov detectors. Similar techniques might also be useful the detection of supernova neutrinos. Accurate determination neutron efficiencies will require detailed understanding number neutrons produced by neutrino interactions as function momentum transferred. We propose Atmospheric Neutrino Interaction Experiment (ANNIE), designed to measure yield gadolinium-doped water. An innovative aspect ANNIE design is use precision timing localize interaction vertices small fiducial volume detector. achieve this early production LAPPDs (Large Area Picosecond Photodetectors). This experiment first application these devices demonstrating their feasibility for