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SUMMARY:Vincent Fischer (UC Davis) - Accelerator Neutrino Neutron Interaction Experiment (ANNIE)
DESCRIPTION:The next generation of large scale neutrino detectors\, such as DUNE or Hyper-Kamiokande\, will heavily rely on a precise understanding of neutrino-nucleus interactions to reach their goal of measuring leptonic CP violation. Accounting for and reconstructing all final state particles\, especially neutrons\, created upon such interactions is thus crucial. This is the goal of the ANNIE experiment: Measuring the neutron abundance in the final state of neutrino-nucleus interactions in the energy domain relevant for oscillation experiments. With a volume of about 30 tons of pure water doped with gadolinium to enhance neutron tagging efficiency\, ANNIE will provide a measurement of the neutron yield of neutrino interactions as a function of the neutrino energy in the well-characterized Booster Neutrino Beam at Fermilab. The modularity of ANNIE will allow it to perform the very first live test of a novel kind of photodetectors called LAPPDs (Large Area Picosecond Photodetectors) in a neutrino detector to reconstruct neutrino interaction vertices through precision timing measurement. This seminar will describe the design and construction of the experiment\, along with the background measurement results from Phase~I and the plans for Phase~II.
URL:https://inpa.lbl.gov/event/vincent-fischer-uc-davis-tba-accelerator-neutrino-neutron-interaction-experiment-annie/
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