Nuclear & Particle Physics Seminar

November 4, 2019 - 2:30pm to 3:30pm
618 Van Allen Hall

Dr. Emrah Tiras; Fermilab; Batavia, IL

“The ANNIE Experiment at Fermilab: Neutrinos Knocking out Neutrons”

Abstract: The Accelerator Neutrino Neutron Interaction Experiment (ANNIE) is a water Cherenkov detector located on the Booster Neutrino Beam (BNB) at Fermilab. The primary physics goals of ANNIE are to study the multiplicity of final state neutrons from neutrino-nucleus interactions and charged current quasi-elastic (CCQE) cross-section measurements in water. ANNIE provides a unique opportunity to study this physics in a controlled beam experiment in an energy range of 700 MeV, which is relevant to both atmospheric neutrinos and long-baseline experiments. The primary technological goals are to demonstrate new detection technologies such as Large Area Picosecond Photo-Detectors (LAPPDs) and neutron tagging in Gadolinium-loaded water. In 2016-2017, ANNIE successfully built and operated a partially instrumented, full-scale detector (Phase I) in order to measure cosmic and beam-induced backgrounds. The full implementation of the ANNIE physics phase detector was completed this summer and is now under commissioning. In this talk, I will present the physics results of Phase I and give an overview of the physics phase detector and new technologies.