Progress Toward A 2νββ Measurement for the Majorana Demonstrator

T. Gilliss; N. Abgrall; S. I. Alvis; I. J. Arnquist; F. T. Avignone; A. S. Barabash; C. J. Barton; F. E. Bertrand; T. Bode; A. W. Bradley; V. Brudanin; M. Busch; M. Buuck; T. S. Caldwell; Y. D. Chan; C. D. Christofferson; P. H. Chu; C. Cuesta; J. A. Detwiler; C. Dunagan; Yu Efremenko; H. Ejiri; S. R. Elliott; G. K. Giovanetti; M. P. Green; J. Gruszko; I. S. Guinn; V. E. Guiseppe; C. R. Haufe; L. Hehn; R. Henning; E. W. Hoppe; M. A. Howe; K. J. Keeter; M. F. Kidd; S. I. Konovalov; R. T. Kouzes; A. M. Lopez; R. D. Martin; R. Massarczyk; S. J. Meijer; S. Mertens; J. Myslik; C. O'Shaughnessy; G. Othman; W. Pettus; A. W.P. Poon; D. C. Radford; J. Rager; A. L. Reine; K. Rielage; R. G.H. Robertson; N. W. Ruof; B. Shanks; M. Shirchenko; A. M. Suriano; D. Tedeschi; J. E. Trimble; R. L. Varner; S. Vasilyev; K. Vetter; K. Vorren; B. R. White; J. F. Wilkerson; C. Wiseman; W. Xu; E. Yakushev; C. H. Yu; V. Yumatov; I. Zhitnikov; B. X. Zhu

doi:10.1088/1742-6596/1342/1/012117

Progress Toward A 2νββ Measurement for the Majorana Demonstrator

T. Gilliss, N. Abgrall, S. I. Alvis, I. J. Arnquist, F. T. Avignone, A. S. Barabash, C. J. Barton, F. E. Bertrand, T. Bode, A. W. Bradley, V. Brudanin, M. Busch, M. Buuck, T. S. Caldwell, Y. D. Chan, C. D. Christofferson, P. H. Chu, C. Cuesta, J. A. Detwiler, C. DunaganYu Efremenko, H. Ejiri, S. R. Elliott, G. K. Giovanetti, M. P. Green, J. Gruszko, I. S. Guinn, V. E. Guiseppe, C. R. Haufe, L. Hehn, R. Henning, E. W. Hoppe, M. A. Howe, K. J. Keeter, M. F. Kidd, S. I. Konovalov, R. T. Kouzes, A. M. Lopez, R. D. Martin, R. Massarczyk, S. J. Meijer, S. Mertens, J. Myslik, C. O'Shaughnessy, G. Othman, W. Pettus, A. W.P. Poon, D. C. Radford, J. Rager, A. L. Reine, K. Rielage, R. G.H. Robertson, N. W. Ruof, B. Shanks, M. Shirchenko, A. M. Suriano, D. Tedeschi, J. E. Trimble, R. L. Varner, S. Vasilyev, K. Vetter, K. Vorren, B. R. White, J. F. Wilkerson, C. Wiseman, W. Xu, E. Yakushev, C. H. Yu, V. Yumatov, I. Zhitnikov, B. X. Zhu

Research output: Contribution to journal › Conference article › peer-review

Abstract

The MAJORANA DEMONSTRATOR is a ⁷⁶Ge-based neutrinoless double-beta decay (0νββ) experiment. Staged at the 4850 ft level of the Sanford Underground Research Facility, the DEMONSTRATOR operates an array of high-purity p-Type point contact Ge detectors deployed within a graded passive shield and an active muon veto system. The present work concerns the two-neutrino double-beta decay mode (2νββ) of ⁷⁶Ge. For Ge detectors, having superior energy resolution (0.1%), this mode poses negligible background to the 0νββ mode, even for a ton-scale experiment. However, the measurement of the 2νββ mode allows for careful systematics checks of active detector mass, enrichment fraction, and pulse shape discrimination cuts related to both the 0νββ and 2νββ decay modes. A precision measurement of the 2νββ shape also allows searches for spectral distortions, possibly indicative of new physics, including 0νββχ. Work is underway to construct a full experimental background model enabling a Bayesian fit to the measured energy spectrum and extraction of a precise 2νββ spectrum and half-life.

Original language	English
Article number	012117
Journal	Journal of Physics: Conference Series
Volume	1342
Issue number	1
DOIs	https://doi.org/10.1088/1742-6596/1342/1/012117
State	Published - Jan 20 2020
Event	15th International Conference on Topics in Astroparticle and Underground Physics, TAUP 2017 - Sudbury, Canada Duration: Jun 24 2017 → Jun 28 2017

Funding

This material is based upon work supported by the U.S. Department of Energy, Office of Science, Office of Nuclear Physics, the Particle Astrophysics and Nuclear Physics Programs of the National Science Foundation, and the Sanford Underground Research Facility.

Funders	Funder number
Sanford Underground Research Facility
National Science Foundation
U.S. Department of Energy
Office of Science
Nuclear Physics

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Gilliss, T., Abgrall, N., Alvis, S. I., Arnquist, I. J., Avignone, F. T., Barabash, A. S., Barton, C. J., Bertrand, F. E., Bode, T., Bradley, A. W., Brudanin, V., Busch, M., Buuck, M., Caldwell, T. S., Chan, Y. D., Christofferson, C. D., Chu, P. H., Cuesta, C., Detwiler, J. A., ... Zhu, B. X. (2020). Progress Toward A 2νββ Measurement for the Majorana Demonstrator. Journal of Physics: Conference Series, 1342(1), Article 012117. https://doi.org/10.1088/1742-6596/1342/1/012117

@article{2bee3da335274c3f95c39789983a395c,

title = "Progress Toward A 2νββ Measurement for the Majorana Demonstrator",

abstract = "The MAJORANA DEMONSTRATOR is a 76Ge-based neutrinoless double-beta decay (0νββ) experiment. Staged at the 4850 ft level of the Sanford Underground Research Facility, the DEMONSTRATOR operates an array of high-purity p-Type point contact Ge detectors deployed within a graded passive shield and an active muon veto system. The present work concerns the two-neutrino double-beta decay mode (2νββ) of 76Ge. For Ge detectors, having superior energy resolution (0.1%), this mode poses negligible background to the 0νββ mode, even for a ton-scale experiment. However, the measurement of the 2νββ mode allows for careful systematics checks of active detector mass, enrichment fraction, and pulse shape discrimination cuts related to both the 0νββ and 2νββ decay modes. A precision measurement of the 2νββ shape also allows searches for spectral distortions, possibly indicative of new physics, including 0νββχ. Work is underway to construct a full experimental background model enabling a Bayesian fit to the measured energy spectrum and extraction of a precise 2νββ spectrum and half-life.",

author = "T. Gilliss and N. Abgrall and Alvis, {S. I.} and Arnquist, {I. J.} and Avignone, {F. T.} and Barabash, {A. S.} and Barton, {C. J.} and Bertrand, {F. E.} and T. Bode and Bradley, {A. W.} and V. Brudanin and M. Busch and M. Buuck and Caldwell, {T. S.} and Chan, {Y. D.} and Christofferson, {C. D.} and Chu, {P. H.} and C. Cuesta and Detwiler, {J. A.} and C. Dunagan and Yu Efremenko and H. Ejiri and Elliott, {S. R.} and Giovanetti, {G. K.} and Green, {M. P.} and J. Gruszko and Guinn, {I. S.} and Guiseppe, {V. E.} and Haufe, {C. R.} and L. Hehn and R. Henning 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 R. Massarczyk and Meijer, {S. J.} and S. Mertens and J. Myslik and C. O'Shaughnessy and G. Othman and W. Pettus and Poon, {A. W.P.} and Radford, {D. C.} and J. Rager and Reine, {A. L.} and K. Rielage and Robertson, {R. G.H.} and Ruof, {N. W.} and B. Shanks and M. Shirchenko and Suriano, {A. M.} and D. Tedeschi and Trimble, {J. E.} and Varner, {R. L.} and S. Vasilyev and K. Vetter and K. Vorren and White, {B. R.} and Wilkerson, {J. F.} and C. Wiseman and W. Xu and E. Yakushev and Yu, {C. H.} and V. Yumatov and I. Zhitnikov and Zhu, {B. X.}",

note = "Publisher Copyright: {\textcopyright} Published under licence by IOP Publishing Ltd.; 15th International Conference on Topics in Astroparticle and Underground Physics, TAUP 2017 ; Conference date: 24-06-2017 Through 28-06-2017",

year = "2020",

month = jan,

day = "20",

doi = "10.1088/1742-6596/1342/1/012117",

language = "English",

volume = "1342",

journal = "Journal of Physics: Conference Series",

issn = "1742-6588",

number = "1",

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Gilliss, T, Abgrall, N, Alvis, SI, Arnquist, IJ, Avignone, FT, Barabash, AS, Barton, CJ, Bertrand, FE, Bode, T, Bradley, AW, Brudanin, V, Busch, M, Buuck, M, Caldwell, TS, Chan, YD, Christofferson, CD, Chu, PH, Cuesta, C, Detwiler, JA, Dunagan, C, Efremenko, Y, Ejiri, H, Elliott, SR, Giovanetti, GK, Green, MP, Gruszko, J, Guinn, IS, Guiseppe, VE, Haufe, CR, Hehn, L, Henning, R, Hoppe, EW, Howe, MA, Keeter, KJ, Kidd, MF, Konovalov, SI, Kouzes, RT, Lopez, AM, Martin, RD, Massarczyk, R, Meijer, SJ, Mertens, S, Myslik, J, O'Shaughnessy, C, Othman, G, Pettus, W, Poon, AWP, Radford, DC, Rager, J, Reine, AL, Rielage, K, Robertson, RGH, Ruof, NW, Shanks, B, Shirchenko, M, Suriano, AM, Tedeschi, D, Trimble, JE, Varner, RL, Vasilyev, S, Vetter, K, Vorren, K, White, BR, Wilkerson, JF, Wiseman, C, Xu, W, Yakushev, E, Yu, CH, Yumatov, V, Zhitnikov, I & Zhu, BX 2020, 'Progress Toward A 2νββ Measurement for the Majorana Demonstrator', Journal of Physics: Conference Series, vol. 1342, no. 1, 012117. https://doi.org/10.1088/1742-6596/1342/1/012117

TY - JOUR

T1 - Progress Toward A 2νββ Measurement for the Majorana Demonstrator

AU - Gilliss, T.

AU - Abgrall, N.

AU - Alvis, S. I.

AU - Arnquist, I. J.

AU - Avignone, F. T.

AU - Barabash, A. S.

AU - Barton, C. J.

AU - Bertrand, F. E.

AU - Bode, T.

AU - Bradley, A. W.

AU - Brudanin, V.

AU - Busch, M.

AU - Buuck, M.

AU - Caldwell, T. S.

AU - Chan, Y. D.

AU - Christofferson, C. D.

AU - Chu, P. H.

AU - Cuesta, C.

AU - Detwiler, J. A.

AU - Dunagan, C.

AU - Efremenko, Yu

AU - Ejiri, H.

AU - Elliott, S. R.

AU - Giovanetti, G. K.

AU - Green, M. P.

AU - Gruszko, J.

AU - Guinn, I. S.

AU - Guiseppe, V. E.

AU - Haufe, C. R.

AU - Hehn, L.

AU - Henning, R.

AU - Hoppe, E. W.

AU - Howe, M. A.

AU - Keeter, K. J.

AU - Kidd, M. F.

AU - Konovalov, S. I.

AU - Kouzes, R. T.

AU - Lopez, A. M.

AU - Martin, R. D.

AU - Massarczyk, R.

AU - Meijer, S. J.

AU - Mertens, S.

AU - Myslik, J.

AU - O'Shaughnessy, C.

AU - Othman, G.

AU - Pettus, W.

AU - Poon, A. W.P.

AU - Radford, D. C.

AU - Rager, J.

AU - Reine, A. L.

AU - Rielage, K.

AU - Robertson, R. G.H.

AU - Ruof, N. W.

AU - Shanks, B.

AU - Shirchenko, M.

AU - Suriano, A. M.

AU - Tedeschi, D.

AU - Trimble, J. E.

AU - Varner, R. L.

AU - Vasilyev, S.

AU - Vetter, K.

AU - Vorren, K.

AU - White, B. R.

AU - Wilkerson, J. F.

AU - Wiseman, C.

AU - Xu, W.

AU - Yakushev, E.

AU - Yu, C. H.

AU - Yumatov, V.

AU - Zhitnikov, I.

AU - Zhu, B. X.

PY - 2020/1/20

Y1 - 2020/1/20

N2 - The MAJORANA DEMONSTRATOR is a 76Ge-based neutrinoless double-beta decay (0νββ) experiment. Staged at the 4850 ft level of the Sanford Underground Research Facility, the DEMONSTRATOR operates an array of high-purity p-Type point contact Ge detectors deployed within a graded passive shield and an active muon veto system. The present work concerns the two-neutrino double-beta decay mode (2νββ) of 76Ge. For Ge detectors, having superior energy resolution (0.1%), this mode poses negligible background to the 0νββ mode, even for a ton-scale experiment. However, the measurement of the 2νββ mode allows for careful systematics checks of active detector mass, enrichment fraction, and pulse shape discrimination cuts related to both the 0νββ and 2νββ decay modes. A precision measurement of the 2νββ shape also allows searches for spectral distortions, possibly indicative of new physics, including 0νββχ. Work is underway to construct a full experimental background model enabling a Bayesian fit to the measured energy spectrum and extraction of a precise 2νββ spectrum and half-life.

AB - The MAJORANA DEMONSTRATOR is a 76Ge-based neutrinoless double-beta decay (0νββ) experiment. Staged at the 4850 ft level of the Sanford Underground Research Facility, the DEMONSTRATOR operates an array of high-purity p-Type point contact Ge detectors deployed within a graded passive shield and an active muon veto system. The present work concerns the two-neutrino double-beta decay mode (2νββ) of 76Ge. For Ge detectors, having superior energy resolution (0.1%), this mode poses negligible background to the 0νββ mode, even for a ton-scale experiment. However, the measurement of the 2νββ mode allows for careful systematics checks of active detector mass, enrichment fraction, and pulse shape discrimination cuts related to both the 0νββ and 2νββ decay modes. A precision measurement of the 2νββ shape also allows searches for spectral distortions, possibly indicative of new physics, including 0νββχ. Work is underway to construct a full experimental background model enabling a Bayesian fit to the measured energy spectrum and extraction of a precise 2νββ spectrum and half-life.

UR - http://www.scopus.com/inward/record.url?scp=85079086317&partnerID=8YFLogxK

U2 - 10.1088/1742-6596/1342/1/012117

DO - 10.1088/1742-6596/1342/1/012117

M3 - Conference article

AN - SCOPUS:85079086317

SN - 1742-6588

VL - 1342

JO - Journal of Physics: Conference Series

JF - Journal of Physics: Conference Series

IS - 1

M1 - 012117

T2 - 15th International Conference on Topics in Astroparticle and Underground Physics, TAUP 2017

Y2 - 24 June 2017 through 28 June 2017

ER -

Progress Toward A 2νββ Measurement for the Majorana Demonstrator

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