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Title: Multisite event discrimination for the MAJORANA DEMONSTRATOR

Abstract

The Majorana Demonstrator is searching for neutrinoless double-beta decay (0νββ) in 76Ge using arrays of point-contact germanium detectors operating at the Sanford Underground Research Facility. Background results in the 0νββ region of interest from data taken during construction, commissioning, and the start of full operations have been recently published. A pulse shape analysis cut applied to achieve this result, named AvsE, is described in this paper. This cut is developed to remove events whose waveforms are typical of multisite energy deposits while retaining (90±3.5)% of single-site events. This pulse shape discrimination is based on the relationship between the maximum current and energy, and tuned using 228Th calibration source data. The efficiency uncertainty accounts for variation across detectors, energy, and time, as well as for the position distribution difference between calibration and 0νββ events, established using simulations.

Authors:
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Publication Date:
Research Org.:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States); University of North Carolina, Chapel Hill, NC (United States); Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States); Pacific Northwest National Laboratory (PNNL), Richland, WA (United States); Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Nuclear Physics (NP)
Contributing Org.:
Majorana Collaboration
OSTI Identifier:
1526382
Alternate Identifier(s):
OSTI ID: 1492335; OSTI ID: 1544790; OSTI ID: 1546222; OSTI ID: 1658900; OSTI ID: 1658940; OSTI ID: 1768539
Report Number(s):
PNNL-SA-140391; LA-UR-19-20305
Journal ID: ISSN 2469-9985; PRVCAN
Grant/Contract Number:  
AC02-05CH11231; AC05-00OR22725; AC05-76RL0130; AC52-06NA25396; FG02-97ER41020; FG02-97ER41033; FG02-97ER41041; SC0010254; SC0012612; SC0014445; SC0018060; AC05-76RL01830; 89233218CNA000001
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Physical Review. C
Additional Journal Information:
Journal Volume: 99; Journal Issue: 6; Journal ID: ISSN 2469-9985
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; Neutrinoless double beta decay; Nucleus-neutrino interactions; 59 ≤ A ≤ 89; Radiation detectors; Spectrometers & spectroscopic techniques; 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; Atomic, Nuclear and Particle Physics

Citation Formats

Alvis, S. I., Arnquist, I. J., Avignone, F. T., Barabash, A. S., Barton, C. J., Basu, V., Bertrand, F. E., Bos, B., Buuck, M., Caldwell, T. S., Chan, Y-D., Christofferson, C. D., Chu, P. -H., Cuesta, C., Detwiler, J. A., Ejiri, H., Elliott, S. R., Gilliss, T., Giovanetti, G. K., Green, M. P., Gruszko, J., Guinn, I. S., Guiseppe, V. E., Haufe, C. R., Hegedus, R. J., Hehn, L., Henning, R., Hervas Aguilar, D., Hoppe, E. W., Howe, M. A., Keeter, K. J., Kidd, M. F., Konovalov, S. I., Kouzes, R. T., Lopez, A. M., Martin, R. D., Massarczyk, R., Meijer, S. J., Mertens, S., Myslik, J., Othman, G., Pettus, W., Piliounis, A., Poon, A. W. P., Radford, D. C., Rager, J., Reine, A. L., Rielage, K., Ruof, N. W., Shanks, B., Shirchenko, M., Tedeschi, D., Varner, R. L., Vasilyev, S., White, B. R., Wilkerson, J. F., Wiseman, C., Xu, W., Yakushev, E., Yu, C. -H., Yumatov, V., Zhitnikov, I., and Zhu, B. X. Multisite event discrimination for the MAJORANA DEMONSTRATOR. United States: N. p., 2019. Web. doi:10.1103/PhysRevC.99.065501.
Alvis, S. I., Arnquist, I. J., Avignone, F. T., Barabash, A. S., Barton, C. J., Basu, V., Bertrand, F. E., Bos, B., Buuck, M., Caldwell, T. S., Chan, Y-D., Christofferson, C. D., Chu, P. -H., Cuesta, C., Detwiler, J. A., Ejiri, H., Elliott, S. R., Gilliss, T., Giovanetti, G. K., Green, M. P., Gruszko, J., Guinn, I. S., Guiseppe, V. E., Haufe, C. R., Hegedus, R. J., Hehn, L., Henning, R., Hervas Aguilar, D., Hoppe, E. W., Howe, M. A., Keeter, K. J., Kidd, M. F., Konovalov, S. I., Kouzes, R. T., Lopez, A. M., Martin, R. D., Massarczyk, R., Meijer, S. J., Mertens, S., Myslik, J., Othman, G., Pettus, W., Piliounis, A., Poon, A. W. P., Radford, D. C., Rager, J., Reine, A. L., Rielage, K., Ruof, N. W., Shanks, B., Shirchenko, M., Tedeschi, D., Varner, R. L., Vasilyev, S., White, B. R., Wilkerson, J. F., Wiseman, C., Xu, W., Yakushev, E., Yu, C. -H., Yumatov, V., Zhitnikov, I., & Zhu, B. X. Multisite event discrimination for the MAJORANA DEMONSTRATOR. United States. https://doi.org/10.1103/PhysRevC.99.065501
Alvis, S. I., Arnquist, I. J., Avignone, F. T., Barabash, A. S., Barton, C. J., Basu, V., Bertrand, F. E., Bos, B., Buuck, M., Caldwell, T. S., Chan, Y-D., Christofferson, C. D., Chu, P. -H., Cuesta, C., Detwiler, J. A., Ejiri, H., Elliott, S. R., Gilliss, T., Giovanetti, G. K., Green, M. P., Gruszko, J., Guinn, I. S., Guiseppe, V. E., Haufe, C. R., Hegedus, R. J., Hehn, L., Henning, R., Hervas Aguilar, D., Hoppe, E. W., Howe, M. A., Keeter, K. J., Kidd, M. F., Konovalov, S. I., Kouzes, R. T., Lopez, A. M., Martin, R. D., Massarczyk, R., Meijer, S. J., Mertens, S., Myslik, J., Othman, G., Pettus, W., Piliounis, A., Poon, A. W. P., Radford, D. C., Rager, J., Reine, A. L., Rielage, K., Ruof, N. W., Shanks, B., Shirchenko, M., Tedeschi, D., Varner, R. L., Vasilyev, S., White, B. R., Wilkerson, J. F., Wiseman, C., Xu, W., Yakushev, E., Yu, C. -H., Yumatov, V., Zhitnikov, I., and Zhu, B. X. 2019. "Multisite event discrimination for the MAJORANA DEMONSTRATOR". United States. https://doi.org/10.1103/PhysRevC.99.065501. https://www.osti.gov/servlets/purl/1526382.
@article{osti_1526382,
title = {Multisite event discrimination for the MAJORANA DEMONSTRATOR},
author = {Alvis, S. I. and Arnquist, I. J. and Avignone, F. T. and Barabash, A. S. and Barton, C. J. and Basu, V. and Bertrand, F. E. and Bos, B. and Buuck, M. and Caldwell, T. S. and Chan, Y-D. and Christofferson, C. D. and Chu, P. -H. and Cuesta, C. and Detwiler, J. A. and Ejiri, H. and Elliott, S. R. and Gilliss, T. and Giovanetti, G. K. and Green, M. P. and Gruszko, J. and Guinn, I. S. and Guiseppe, V. E. and Haufe, C. R. and Hegedus, R. J. and Hehn, L. and Henning, R. and Hervas Aguilar, D. and Hoppe, E. W. and Howe, M. A. and Keeter, K. J. and Kidd, M. F. and Konovalov, S. I. and Kouzes, R. T. and Lopez, A. M. and Martin, R. D. and Massarczyk, R. and Meijer, S. J. and Mertens, S. and Myslik, J. and Othman, G. and Pettus, W. and Piliounis, A. and Poon, A. W. P. and Radford, D. C. and Rager, J. and Reine, A. L. and Rielage, K. and Ruof, N. W. and Shanks, B. and Shirchenko, M. and Tedeschi, D. and Varner, R. L. and Vasilyev, S. and White, B. R. and Wilkerson, J. F. and Wiseman, C. and Xu, W. and Yakushev, E. and Yu, C. -H. and Yumatov, V. and Zhitnikov, I. and Zhu, B. X.},
abstractNote = {The Majorana Demonstrator is searching for neutrinoless double-beta decay (0νββ) in 76Ge using arrays of point-contact germanium detectors operating at the Sanford Underground Research Facility. Background results in the 0νββ region of interest from data taken during construction, commissioning, and the start of full operations have been recently published. A pulse shape analysis cut applied to achieve this result, named AvsE, is described in this paper. This cut is developed to remove events whose waveforms are typical of multisite energy deposits while retaining (90±3.5)% of single-site events. This pulse shape discrimination is based on the relationship between the maximum current and energy, and tuned using 228Th calibration source data. The efficiency uncertainty accounts for variation across detectors, energy, and time, as well as for the position distribution difference between calibration and 0νββ events, established using simulations.},
doi = {10.1103/PhysRevC.99.065501},
url = {https://www.osti.gov/biblio/1526382}, journal = {Physical Review. C},
issn = {2469-9985},
number = 6,
volume = 99,
place = {United States},
year = {Fri Jun 07 00:00:00 EDT 2019},
month = {Fri Jun 07 00:00:00 EDT 2019}
}

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Works referenced in this record:

The Majorana Low-noise Low-background Front-end Electronics
journal, January 2015


Search for Neutrinoless Double- β Decay in Ge 76 with the Majorana Demonstrator
journal, March 2018


The Majorana Demonstrator calibration system
journal, November 2017

  • Abgrall, N.; Arnquist, I. J.; Avignone III, F. T.
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  • https://doi.org/10.1016/j.nima.2017.08.005

Pulse shape discrimination for Gerda Phase I data
journal, October 2013


Large-mass ultralow noise germanium detectors: performance and applications in neutrino and astroparticle physics
journal, September 2007


MaGe-a Geant4-Based Monte Carlo Application Framework for Low-Background Germanium Experiments
journal, June 2011


The MAJORANA DEMONSTRATOR Neutrinoless Double-Beta Decay Experiment
journal, January 2014


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Digital synthesis of pulse shapes in real time for high resolution radiation spectroscopy
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The Sanford Underground Research Facility at Homestake
journal, May 2015


Works referencing / citing this record:

Search for neutrinoless double- β decay in Ge 76 with 26 kg yr of exposure from the Majorana Demonstrator
journal, August 2019