Bulletin of the American Physical Society
5th Joint Meeting of the APS Division of Nuclear Physics and the Physical Society of Japan
Volume 63, Number 12
Tuesday–Saturday, October 23–27, 2018; Waikoloa, Hawaii
Session EN: Neutrino Physics II
7:00 PM–9:45 PM,
Thursday, October 25, 2018
Hilton
Room: Kohala 4
Chair: Javier Menendez, University of Tokyo
Abstract ID: BAPS.2018.HAW.EN.10
Abstract: EN.00010 : NuDot: Double-Beta Decay with Direction Reconstruction in Liquid Scintillator*
9:15 PM–9:30 PM
Presenter:
Julieta Gruszko
(Massachusetts Inst of Tech-MIT)
Authors:
Julieta Gruszko
(Massachusetts Inst of Tech-MIT)
Andrey Elagin
(U Chicago)
Christopher P Grant
(Boston Univ)
Diana Gooding
(Boston Univ)
Aobo Li
(Boston Univ)
Brian Naranjo
(UCLA)
Jonathan Ouellet
(Massachusetts Inst of Tech-MIT)
Lindley A Winslow
(Massachusetts Inst of Tech-MIT)
As neutrinoless double-beta decay searches seek to reach into and beyond the inverted hierarchy regime, new strategies are needed to reject background events in kiloton-scale detectors. In monolithic liquid-scintillator-based detectors, otherwise-irreducible backgrounds like 8B solar neutrino scattering could be identified by their event topology and novel deep-learning-based algorithms. NuDot is a 1-ton prototype that aims to demonstrate Cherenkov signal momentum reconstruction of ~1 MeV beta particles. In the FlatDot test-stand, the NuDot collaboration has demonstrated the first liquid scintillator timing-based Cherenkov/scintillation light separation of < 2 MeV beta decay events, validating NuDot's photodetectors and DAQ approach. FlatDot has also allowed for tests of novel liquid scintillator cocktails, including the use of quantum dots as wavelength shifters. The NuDot detector is currently undergoing construction and commissioning at MIT. In the coming months, we will conduct surface measurements demonstrating direction reconstruction of calibration source beta events, followed by an underground measurement of two-neutrino double-beta decay with direction reconstruction.
*This work is supported by NSF Grant number 1554875.
To cite this abstract, use the following reference: http://meetings.aps.org/link/BAPS.2018.HAW.EN.10
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