18-19 June 2018
Fermilab, Wilson Hall
US/Central timezone
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Contribution Oral Presentation

Fermilab, Wilson Hall - One West

Track and vertex reconstruction in ANNIE Phase II


  • Dr. Ashley BACK

Primary authors


The primary physics goal of Phase II of the Accelerator Neutrino Neutron Interaction Experiment (ANNIE), is to measure the nuclear final states from neutrino interactions in water, with a particular focus on the production and multiplicity of final-state neutrons. The detector sits in the SciBooNE Hall, on Fermilab's Booster Neutrino Beam (BNB). The upgraded detector will have ~125 photomultiplier tubes in Phase II, increasing our detection efficiency for neutron captures, and will also incorporate at least five Large Area Picosecond Photodetectors (LAPPDs). ANNIE will be the first application of a multi-LAPPD system in a physics measurement and the introduction of these LAPPDs will provide the precise vertex and track reconstruction capabilities required to achieve our physics goals. In this talk, we discuss the simulation of beam neutrino interactions in the Phase II detector. Then, using these simulations, we demonstrate the increase we can achieve in the precision of our vertex and track resolution with optical coverage from five LAPPDs, in addition to photomultiplier tubes, over coverage from photomultiplier tubes alone.