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Karlsruhe 2024 – scientific programme

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T: Fachverband Teilchenphysik

T 87: Neutrino physics 11

T 87.4: Talk

Thursday, March 7, 2024, 16:45–17:00, Geb. 30.22: Gaede-HS

Deployment of water-based liquid scintillator in ANNIE — •Johann Martyn, Amala Augusthy, Noah Goehlke, David Maksimovic, Daniel Tobias Schmid, Michael Wurm, and Dorina Zundel for the ANNIE collaboration — JGU Mainz, Institute of Physics and EC PRISMA+

The Accelerator Neutrino Neutron Interaction Experiment (ANNIE) is a 26-ton water Cherenkov neutrino detector installed on the Booster Neutrino Beam (BNB) at Fermilab. As its main physics goals the experiments aims to perform a measurement of the neutron yield from neutrino-nucleus interactions, as well as a measurement of the charged-current cross section of muon neutrinos. Additionally, ANNIE has an equally important focus on the research and development of new detector technologies and target media. Here water-based liquid scintillator (WbLS) is of special interest, as it allows for the simultaneous detection of scintillation and Cherenkov light of the events. This talk presents the deployment and first data of a 366 L WbLS vessel in ANNIE in March 2023. The successful observation of both scintillation and Cherenkov light in ANNIE corresponds to a proof-of-concept for the hybrid event detection concept in ANNIE. This allows for the future development of reconstruction and particle identification algorithms, as well as dedicated analyses in ANNIE, that make use of both the Cherenkov and scintillation component. This work is supported by the DFG Project 490717455.

Keywords: Water-based liquid scintillator

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