Spectral analysis for the Majorana Demonstrator experiment

L. Hehn; 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; T. Gilliss; G. K. Giovanetti; M. P. Green; J. Gruszko; I. S. Guinn; V. E. Guiseppe; C. R. Haufe; 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:10.1088/1742-6596/1342/1/012026

Spectral analysis for the Majorana Demonstrator experiment

L. Hehn, 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, T. Gilliss, G. K. Giovanetti, M. P. Green, J. Gruszko, I. S. Guinn, V. E. Guiseppe, C. R. Haufe, 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 an experiment constructed to search for neutrinoless double-beta decays in germanium-76 and to demonstrate the feasibility to deploy a ton-scale experiment in a phased and modular fashion. It consists of two modular arrays of natural and ⁷⁶Ge-enriched germanium detectors totaling 44.1kg (29.7kg enriched detectors), located at the 4850' level of the Sanford Underground Research Facility in Lead, South Dakota, USA. Data taken with this setup since summer 2015 at different construction stages of the experiment show a clear reduction of the observed background index around the ROI for 0νββ-decay search due to improvements in shielding. We discuss the statistical approaches to search for a νββ-signal and derive the physics sensitivity for an expected exposure of 10kg• y from enriched detectors using a profile likelihood based hypothesis test in combination with toy Monte Carlo data.

Original language	English
Article number	012026
Journal	Journal of Physics: Conference Series
Volume	1342
Issue number	1
DOIs	https://doi.org/10.1088/1742-6596/1342/1/012026
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

Bibliographical note

Publisher Copyright:
© Published under licence by IOP Publishing Ltd.

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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Hehn, L., 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). Spectral analysis for the Majorana Demonstrator experiment. Journal of Physics: Conference Series, 1342(1), Article 012026. https://doi.org/10.1088/1742-6596/1342/1/012026

@article{a6c8ca70c9254977bd018729305e6998,

title = "Spectral analysis for the Majorana Demonstrator experiment",

abstract = "The MAJORANA DEMONSTRATOR is an experiment constructed to search for neutrinoless double-beta decays in germanium-76 and to demonstrate the feasibility to deploy a ton-scale experiment in a phased and modular fashion. It consists of two modular arrays of natural and 76Ge-enriched germanium detectors totaling 44.1kg (29.7kg enriched detectors), located at the 4850' level of the Sanford Underground Research Facility in Lead, South Dakota, USA. Data taken with this setup since summer 2015 at different construction stages of the experiment show a clear reduction of the observed background index around the ROI for 0νββ-decay search due to improvements in shielding. We discuss the statistical approaches to search for a νββ-signal and derive the physics sensitivity for an expected exposure of 10kg• y from enriched detectors using a profile likelihood based hypothesis test in combination with toy Monte Carlo data.",

author = "L. Hehn 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 T. Gilliss and Giovanetti, {G. K.} and Green, {M. P.} and J. Gruszko and Guinn, {I. S.} and Guiseppe, {V. E.} and Haufe, {C. R.} 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 = "10.1088/1742-6596/1342/1/012026",

language = "English",

volume = "1342",

journal = "Journal of Physics: Conference Series",

issn = "1742-6588",

number = "1",

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Hehn, L, 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, Gilliss, T, Giovanetti, GK, Green, MP, Gruszko, J, Guinn, IS, Guiseppe, VE, Haufe, CR, 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, 'Spectral analysis for the Majorana Demonstrator experiment', Journal of Physics: Conference Series, vol. 1342, no. 1, 012026. https://doi.org/10.1088/1742-6596/1342/1/012026

TY - JOUR

T1 - Spectral analysis for the Majorana Demonstrator experiment

AU - Hehn, L.

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 - Gilliss, T.

AU - Giovanetti, G. K.

AU - Green, M. P.

AU - Gruszko, J.

AU - Guinn, I. S.

AU - Guiseppe, V. E.

AU - Haufe, C. R.

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 an experiment constructed to search for neutrinoless double-beta decays in germanium-76 and to demonstrate the feasibility to deploy a ton-scale experiment in a phased and modular fashion. It consists of two modular arrays of natural and 76Ge-enriched germanium detectors totaling 44.1kg (29.7kg enriched detectors), located at the 4850' level of the Sanford Underground Research Facility in Lead, South Dakota, USA. Data taken with this setup since summer 2015 at different construction stages of the experiment show a clear reduction of the observed background index around the ROI for 0νββ-decay search due to improvements in shielding. We discuss the statistical approaches to search for a νββ-signal and derive the physics sensitivity for an expected exposure of 10kg• y from enriched detectors using a profile likelihood based hypothesis test in combination with toy Monte Carlo data.

AB - The MAJORANA DEMONSTRATOR is an experiment constructed to search for neutrinoless double-beta decays in germanium-76 and to demonstrate the feasibility to deploy a ton-scale experiment in a phased and modular fashion. It consists of two modular arrays of natural and 76Ge-enriched germanium detectors totaling 44.1kg (29.7kg enriched detectors), located at the 4850' level of the Sanford Underground Research Facility in Lead, South Dakota, USA. Data taken with this setup since summer 2015 at different construction stages of the experiment show a clear reduction of the observed background index around the ROI for 0νββ-decay search due to improvements in shielding. We discuss the statistical approaches to search for a νββ-signal and derive the physics sensitivity for an expected exposure of 10kg• y from enriched detectors using a profile likelihood based hypothesis test in combination with toy Monte Carlo data.

UR - http://www.scopus.com/inward/record.url?scp=85079103861&partnerID=8YFLogxK

U2 - 10.1088/1742-6596/1342/1/012026

DO - 10.1088/1742-6596/1342/1/012026

M3 - Conference article

AN - SCOPUS:85079103861

SN - 1742-6588

VL - 1342

JO - Journal of Physics: Conference Series

JF - Journal of Physics: Conference Series

IS - 1

M1 - 012026

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

Y2 - 24 June 2017 through 28 June 2017

ER -

Spectral analysis for the Majorana Demonstrator experiment

Abstract

Bibliographical note

Funding

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