I had a long day and was unable to start submitting abstracts till 4pm my time (11pm, Amsterdam). What I had not anticipated was how long it would take to manually enter all of the relevant email addresses for the co-authors.

I began submitting an abstract for the ANNIE experiment by 4:30. We have 25 people on the author list, so it took me nearly a half hour of copy-pasting email addresses. I finished 3 minutes after midnight, your time, and was not permitted by the system to complete the submission. If it is at all possible, I would still like to submit it. I'm glad to fill out the form again if there is some way to make that possible. I have also included said abstract inline, below this email. 

Please let me know how I should proceed. Any help would be greatly appreciated.

Best,

Matt

The Atmospheric Neutrino Neutron Interaction Experiment

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