The Majorana Demonstrator: A Search for Neutrinoless Double-beta Decay of 76Ge

W. Xu; N. Abgrall; F. T. Avignone; A. S. Barabash; F. E. Bertrand; V. Brudanin; M. Busch; M. Buuck; D. Byram; A. S. Caldwell; Y. D. Chan; C. D. Christofferson; C. Cuesta; J. A. Detwiler; Yu Efremenko; H. Ejiri; S. R. Elliott; A. Galindo-Uribarri; G. K. Giovanetti; J. Goett; M. P. Green; J. Gruszko; I. Guinn; V. E. Guiseppe; R. Henning; E. W. Hoppe; S. Howard; M. A. Howe; B. R. Jasinski; K. J. Keeter; M. F. Kidd; S. I. Konovalov; R. T. Kouzes; B. D. Laferriere; J. Leon; J. Macmullin; R. D. Martin; S. J. Meijer; S. Mertens; J. L. Orrell; C. O'Shaughnessy; N. R. Overman; A. W.P. Poon; D. C. Radford; J. Rager; K. Rielage; R. G.H. Robertson; E. Romero-Romero; M. C. Ronquest; B. Shanks; M. Shirchenko; N. Snyder; 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; E. Yakushev; C. H. Yu; V. Yumatov

doi:10.1088/1742-6596/606/1/012004

The Majorana Demonstrator: A Search for Neutrinoless Double-beta Decay of ⁷⁶Ge

W. Xu, N. Abgrall, F. T. Avignone, A. S. Barabash, F. E. Bertrand, V. Brudanin, M. Busch, M. Buuck, D. Byram, A. S. Caldwell, Y. D. Chan, C. D. Christofferson, C. Cuesta, J. A. Detwiler, Yu Efremenko, H. Ejiri, S. R. Elliott, A. Galindo-Uribarri, G. K. Giovanetti, J. GoettM. P. Green, J. Gruszko, I. Guinn, V. E. Guiseppe, R. Henning, E. W. Hoppe, S. Howard, M. A. Howe, B. R. Jasinski, K. J. Keeter, M. F. Kidd, S. I. Konovalov, R. T. Kouzes, B. D. Laferriere, J. Leon, J. Macmullin, R. D. Martin, S. J. Meijer, S. Mertens, J. L. Orrell, C. O'Shaughnessy, N. R. Overman, A. W.P. Poon, D. C. Radford, J. Rager, K. Rielage, R. G.H. Robertson, E. Romero-Romero, M. C. Ronquest, B. Shanks, M. Shirchenko, N. Snyder, 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, E. Yakushev, C. H. Yu, V. Yumatov

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Abstract

Neutrinoless double-beta (0νββ) decay is a hypothesized process where in some even-even nuclei it might be possible for two neutrons to simultaneously decay into two protons and two electrons without emitting neutrinos. This is possible only if neutrinos are Majorana particles, i.e. fermions that are their own antiparticles. Neutrinos being Majorana particles would explicitly violate lepton number conservation, and might play a role in the matter-antimatter asymmetry in the universe. The observation of neutrinoless double-beta decay would also provide complementary information related to neutrino masses. The Majorana Collaboration is constructing the MAJORANA DEMONSTRATOR, with a total of 40-kg Germanium detectors, to search for the 0νββ decay of ⁷⁶Ge and to demonstrate a background rate at or below 3 counts/(ROI•t•y) in the 4 keV region of interest (ROI) around the 2039 keV Q-value for ⁷⁶Ge 0νββ decay. In this paper, we discuss the physics of neutrinoless double beta decay and then focus on the MAJORANA DEMONSTRATOR, including its design and approach to achieve ultra-low backgrounds and the status of the experiment.

Original language	English
Article number	012004
Journal	Journal of Physics: Conference Series
Volume	606
Issue number	1
DOIs	https://doi.org/10.1088/1742-6596/606/1/012004
State	Published - May 1 2015
Event	2nd Workshop on Germanium Detectors and Technologies - Vermillion, United States Duration: Sep 14 2014 → Sep 17 2014

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10.1088/1742-6596/606/1/012004

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Xu, W., Abgrall, N., Avignone, F. T., Barabash, A. S., Bertrand, F. E., Brudanin, V., Busch, M., Buuck, M., Byram, D., Caldwell, A. S., Chan, Y. D., Christofferson, C. D., Cuesta, C., Detwiler, J. A., Efremenko, Y., Ejiri, H., Elliott, S. R., Galindo-Uribarri, A., Giovanetti, G. K., ... Yumatov, V. (2015). The Majorana Demonstrator: A Search for Neutrinoless Double-beta Decay of ⁷⁶Ge. Journal of Physics: Conference Series, 606(1), Article 012004. https://doi.org/10.1088/1742-6596/606/1/012004

@article{12136441036145c0b75deb5452af7359,

title = "The Majorana Demonstrator: A Search for Neutrinoless Double-beta Decay of 76Ge",

abstract = "Neutrinoless double-beta (0νββ) decay is a hypothesized process where in some even-even nuclei it might be possible for two neutrons to simultaneously decay into two protons and two electrons without emitting neutrinos. This is possible only if neutrinos are Majorana particles, i.e. fermions that are their own antiparticles. Neutrinos being Majorana particles would explicitly violate lepton number conservation, and might play a role in the matter-antimatter asymmetry in the universe. The observation of neutrinoless double-beta decay would also provide complementary information related to neutrino masses. The Majorana Collaboration is constructing the MAJORANA DEMONSTRATOR, with a total of 40-kg Germanium detectors, to search for the 0νββ decay of 76Ge and to demonstrate a background rate at or below 3 counts/(ROI•t•y) in the 4 keV region of interest (ROI) around the 2039 keV Q-value for 76Ge 0νββ decay. In this paper, we discuss the physics of neutrinoless double beta decay and then focus on the MAJORANA DEMONSTRATOR, including its design and approach to achieve ultra-low backgrounds and the status of the experiment.",

author = "W. Xu and N. Abgrall and Avignone, {F. T.} and Barabash, {A. S.} and Bertrand, {F. E.} and V. Brudanin and M. Busch and M. Buuck and D. Byram and Caldwell, {A. S.} and Chan, {Y. D.} and Christofferson, {C. D.} and C. Cuesta and Detwiler, {J. A.} and Yu Efremenko and H. Ejiri and Elliott, {S. R.} and A. Galindo-Uribarri and Giovanetti, {G. K.} and J. Goett and Green, {M. P.} and J. Gruszko and I. Guinn and Guiseppe, {V. E.} and R. Henning and Hoppe, {E. W.} and S. Howard and Howe, {M. A.} and Jasinski, {B. R.} and Keeter, {K. J.} and Kidd, {M. F.} and Konovalov, {S. I.} and Kouzes, {R. T.} and Laferriere, {B. D.} and J. Leon and J. Macmullin and Martin, {R. D.} and Meijer, {S. J.} and S. Mertens and Orrell, {J. L.} and C. O'Shaughnessy and Overman, {N. R.} and Poon, {A. W.P.} and Radford, {D. C.} and J. Rager and K. Rielage and Robertson, {R. G.H.} and E. Romero-Romero and Ronquest, {M. C.} and B. Shanks and M. Shirchenko and N. Snyder 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 E. Yakushev and Yu, {C. H.} and V. Yumatov",

note = "Publisher Copyright: {\textcopyright} 2015 IOP Publishing Ltd.; 2nd Workshop on Germanium Detectors and Technologies ; Conference date: 14-09-2014 Through 17-09-2014",

year = "2015",

month = may,

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doi = "10.1088/1742-6596/606/1/012004",

language = "English",

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journal = "Journal of Physics: Conference Series",

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Xu, W, Abgrall, N, Avignone, FT, Barabash, AS, Bertrand, FE, Brudanin, V, Busch, M, Buuck, M, Byram, D, Caldwell, AS, Chan, YD, Christofferson, CD, Cuesta, C, Detwiler, JA, Efremenko, Y, Ejiri, H, Elliott, SR, Galindo-Uribarri, A, Giovanetti, GK, Goett, J, Green, MP, Gruszko, J, Guinn, I, Guiseppe, VE, Henning, R, Hoppe, EW, Howard, S, Howe, MA, Jasinski, BR, Keeter, KJ, Kidd, MF, Konovalov, SI, Kouzes, RT, Laferriere, BD, Leon, J, Macmullin, J, Martin, RD, Meijer, SJ, Mertens, S, Orrell, JL, O'Shaughnessy, C, Overman, NR, Poon, AWP, Radford, DC, Rager, J, Rielage, K, Robertson, RGH, Romero-Romero, E, Ronquest, MC, Shanks, B, Shirchenko, M, Snyder, N, Suriano, AM, Tedeschi, D, Trimble, JE, Varner, RL, Vasilyev, S, Vetter, K, Vorren, K, White, BR, Wilkerson, JF, Wiseman, C, Yakushev, E, Yu, CH & Yumatov, V 2015, 'The Majorana Demonstrator: A Search for Neutrinoless Double-beta Decay of ⁷⁶Ge', Journal of Physics: Conference Series, vol. 606, no. 1, 012004. https://doi.org/10.1088/1742-6596/606/1/012004

TY - JOUR

T1 - The Majorana Demonstrator

T2 - 2nd Workshop on Germanium Detectors and Technologies

AU - Xu, W.

AU - Abgrall, N.

AU - Avignone, F. T.

AU - Barabash, A. S.

AU - Bertrand, F. E.

AU - Brudanin, V.

AU - Busch, M.

AU - Buuck, M.

AU - Byram, D.

AU - Caldwell, A. S.

AU - Chan, Y. D.

AU - Christofferson, C. D.

AU - Cuesta, C.

AU - Detwiler, J. A.

AU - Efremenko, Yu

AU - Ejiri, H.

AU - Elliott, S. R.

AU - Galindo-Uribarri, A.

AU - Giovanetti, G. K.

AU - Goett, J.

AU - Green, M. P.

AU - Gruszko, J.

AU - Guinn, I.

AU - Guiseppe, V. E.

AU - Henning, R.

AU - Hoppe, E. W.

AU - Howard, S.

AU - Howe, M. A.

AU - Jasinski, B. R.

AU - Keeter, K. J.

AU - Kidd, M. F.

AU - Konovalov, S. I.

AU - Kouzes, R. T.

AU - Laferriere, B. D.

AU - Leon, J.

AU - Macmullin, J.

AU - Martin, R. D.

AU - Meijer, S. J.

AU - Mertens, S.

AU - Orrell, J. L.

AU - O'Shaughnessy, C.

AU - Overman, N. R.

AU - Poon, A. W.P.

AU - Radford, D. C.

AU - Rager, J.

AU - Rielage, K.

AU - Robertson, R. G.H.

AU - Romero-Romero, E.

AU - Ronquest, M. C.

AU - Shanks, B.

AU - Shirchenko, M.

AU - Snyder, N.

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 - Yakushev, E.

AU - Yu, C. H.

AU - Yumatov, V.

PY - 2015/5/1

Y1 - 2015/5/1

N2 - Neutrinoless double-beta (0νββ) decay is a hypothesized process where in some even-even nuclei it might be possible for two neutrons to simultaneously decay into two protons and two electrons without emitting neutrinos. This is possible only if neutrinos are Majorana particles, i.e. fermions that are their own antiparticles. Neutrinos being Majorana particles would explicitly violate lepton number conservation, and might play a role in the matter-antimatter asymmetry in the universe. The observation of neutrinoless double-beta decay would also provide complementary information related to neutrino masses. The Majorana Collaboration is constructing the MAJORANA DEMONSTRATOR, with a total of 40-kg Germanium detectors, to search for the 0νββ decay of 76Ge and to demonstrate a background rate at or below 3 counts/(ROI•t•y) in the 4 keV region of interest (ROI) around the 2039 keV Q-value for 76Ge 0νββ decay. In this paper, we discuss the physics of neutrinoless double beta decay and then focus on the MAJORANA DEMONSTRATOR, including its design and approach to achieve ultra-low backgrounds and the status of the experiment.

AB - Neutrinoless double-beta (0νββ) decay is a hypothesized process where in some even-even nuclei it might be possible for two neutrons to simultaneously decay into two protons and two electrons without emitting neutrinos. This is possible only if neutrinos are Majorana particles, i.e. fermions that are their own antiparticles. Neutrinos being Majorana particles would explicitly violate lepton number conservation, and might play a role in the matter-antimatter asymmetry in the universe. The observation of neutrinoless double-beta decay would also provide complementary information related to neutrino masses. The Majorana Collaboration is constructing the MAJORANA DEMONSTRATOR, with a total of 40-kg Germanium detectors, to search for the 0νββ decay of 76Ge and to demonstrate a background rate at or below 3 counts/(ROI•t•y) in the 4 keV region of interest (ROI) around the 2039 keV Q-value for 76Ge 0νββ decay. In this paper, we discuss the physics of neutrinoless double beta decay and then focus on the MAJORANA DEMONSTRATOR, including its design and approach to achieve ultra-low backgrounds and the status of the experiment.

UR - http://www.scopus.com/inward/record.url?scp=84957623908&partnerID=8YFLogxK

U2 - 10.1088/1742-6596/606/1/012004

DO - 10.1088/1742-6596/606/1/012004

M3 - Conference article

AN - SCOPUS:84957623908

SN - 1742-6588

VL - 606

JO - Journal of Physics: Conference Series

JF - Journal of Physics: Conference Series

IS - 1

M1 - 012004

Y2 - 14 September 2014 through 17 September 2014

ER -

The Majorana Demonstrator: A Search for Neutrinoless Double-beta Decay of ⁷⁶Ge

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