The Majorana Demonstrator Status and Preliminary Results

C. H. Yu; S. I. Alvis; I. J. Arnquist; F. T. Avignone; A. S. Barabash; C. J. Barton; F. E. Bertrand; T. Bode; 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. 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; G. Othman; W. Pettus; A. W.P. Poon; D. C. Radford; J. Rager; A. L. Reine; K. Rielage; N. W. Ruof; B. Shanks; M. Shirchenko; A. M. Suriano; D. Tedeschi; R. L. Varner; S. Vasilyev; K. Vetter; K. Vorren; B. R. White; J. F. Wilkerson; C. Wiseman; W. Xu; E. Yakushev; V. Yumatov; I. Zhitnikov; B. Z. Zhu

doi:10.1051/epjconf/201817801006

The Majorana Demonstrator Status and Preliminary Results

C. H. Yu, S. I. Alvis, I. J. Arnquist, F. T. Avignone, A. S. Barabash, C. J. Barton, F. E. Bertrand, T. Bode, 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. EjiriS. R. Elliott, T. Gilliss, G. K. Giovanetti, M. 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, G. Othman, W. Pettus, A. W.P. Poon, D. C. Radford, J. Rager, A. L. Reine, K. Rielage, N. W. Ruof, B. Shanks, M. Shirchenko, A. M. Suriano, D. Tedeschi, R. L. Varner, S. Vasilyev, K. Vetter, K. Vorren, B. R. White, J. F. Wilkerson, C. Wiseman, W. Xu, E. Yakushev, V. Yumatov, I. Zhitnikov, B. Z. Zhu

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Abstract

The Majorana Collaboration is using an array of high-purity Ge detectors to search for neutrinoless double-beta decay in ⁷⁶Ge. Searches for neutrinoless double-beta decay are understood to be the only viable experimental method for testing the Majorana nature of the neutrino. Observation of this decay would imply violation of lepton number, that neutrinos are Majorana in nature, and provide information on the neutrino mass. The Majorana Demonstrator comprises 44.1 kg of p-type point-contact Ge detectors (29.7 kg enriched in ⁷⁶Ge) surrounded by a low-background shield system. The experiment achieved a high efficiency of converting raw Ge material to detectors and an unprecedented detector energy resolution of 2.5 keV FWHM at Q_ββ. The Majorana collaboration began taking physics data in 2016. This paper summarizes key construction aspects of the Demonstrator and shows preliminary results from initial data.

Original language	English
Article number	01006
Journal	EPJ Web of Conferences
Volume	178
DOIs	https://doi.org/10.1051/epjconf/201817801006
State	Published - May 16 2018
Event	16th International Symposium on Capture Gamma-Ray Spectroscopy and Related Topics, CGS 2017 - Shanghai, China Duration: Sep 18 2017 → Sep 22 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, the Russian Foundation for Basic Research, the Natural Sciences and Engineering Research Council of Canada, the Canada Foundation for Innovation John R. Evans Leaders Fund, the National Energy Research Scientific Computing Center, the Oak Ridge Leadership Computing Facility, and the Sanford Underground Research Facility. This research used resources of the Oak Ridge Leadership Computing Facility, which is a DOE Office of Science User Facility supported under Contract DE-AC05-00OR22725.

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Yu, C. H., Alvis, S. I., Arnquist, I. J., Avignone, F. T., Barabash, A. S., Barton, C. J., Bertrand, F. E., Bode, T., Brudanin, V., Busch, M., Buuck, M., Caldwell, T. S., Chan, Y. D., Christofferson, C. D., Chu, P. H., Cuesta, C., Detwiler, J. A., Dunagan, C., Efremenko, Y., ... Zhu, B. Z. (2018). The Majorana Demonstrator Status and Preliminary Results. EPJ Web of Conferences, 178, Article 01006. https://doi.org/10.1051/epjconf/201817801006

@article{5bc7f50d42934151a32e3d01a07caffc,

title = "The Majorana Demonstrator Status and Preliminary Results",

abstract = "The Majorana Collaboration is using an array of high-purity Ge detectors to search for neutrinoless double-beta decay in 76Ge. Searches for neutrinoless double-beta decay are understood to be the only viable experimental method for testing the Majorana nature of the neutrino. Observation of this decay would imply violation of lepton number, that neutrinos are Majorana in nature, and provide information on the neutrino mass. The Majorana Demonstrator comprises 44.1 kg of p-type point-contact Ge detectors (29.7 kg enriched in 76Ge) surrounded by a low-background shield system. The experiment achieved a high efficiency of converting raw Ge material to detectors and an unprecedented detector energy resolution of 2.5 keV FWHM at Qββ. The Majorana collaboration began taking physics data in 2016. This paper summarizes key construction aspects of the Demonstrator and shows preliminary results from initial data.",

author = "Yu, {C. H.} 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 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 M. Green 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 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 Ruof, {N. W.} and B. Shanks and M. Shirchenko and Suriano, {A. M.} and D. Tedeschi 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 V. Yumatov and I. Zhitnikov and Zhu, {B. Z.}",

note = "Publisher Copyright: {\textcopyright} The Authors, published by EDP Sciences, 2018.; 16th International Symposium on Capture Gamma-Ray Spectroscopy and Related Topics, CGS 2017 ; Conference date: 18-09-2017 Through 22-09-2017",

year = "2018",

month = may,

day = "16",

doi = "10.1051/epjconf/201817801006",

language = "English",

volume = "178",

journal = "EPJ Web of Conferences",

issn = "2101-6275",

publisher = "Italian Physical Society",

}

Yu, CH, Alvis, SI, Arnquist, IJ, Avignone, FT, Barabash, AS, Barton, CJ, Bertrand, FE, Bode, T, 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, M, 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, Othman, G, Pettus, W, Poon, AWP, Radford, DC, Rager, J, Reine, AL, Rielage, K, Ruof, NW, Shanks, B, Shirchenko, M, Suriano, AM, Tedeschi, D, Varner, RL, Vasilyev, S, Vetter, K, Vorren, K, White, BR, Wilkerson, JF, Wiseman, C, Xu, W, Yakushev, E, Yumatov, V, Zhitnikov, I & Zhu, BZ 2018, 'The Majorana Demonstrator Status and Preliminary Results', EPJ Web of Conferences, vol. 178, 01006. https://doi.org/10.1051/epjconf/201817801006

TY - JOUR

T1 - The Majorana Demonstrator Status and Preliminary Results

AU - Yu, C. H.

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 - 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.

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 - 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 - Ruof, N. W.

AU - Shanks, B.

AU - Shirchenko, M.

AU - Suriano, A. M.

AU - Tedeschi, D.

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 - Yumatov, V.

AU - Zhitnikov, I.

AU - Zhu, B. Z.

PY - 2018/5/16

Y1 - 2018/5/16

N2 - The Majorana Collaboration is using an array of high-purity Ge detectors to search for neutrinoless double-beta decay in 76Ge. Searches for neutrinoless double-beta decay are understood to be the only viable experimental method for testing the Majorana nature of the neutrino. Observation of this decay would imply violation of lepton number, that neutrinos are Majorana in nature, and provide information on the neutrino mass. The Majorana Demonstrator comprises 44.1 kg of p-type point-contact Ge detectors (29.7 kg enriched in 76Ge) surrounded by a low-background shield system. The experiment achieved a high efficiency of converting raw Ge material to detectors and an unprecedented detector energy resolution of 2.5 keV FWHM at Qββ. The Majorana collaboration began taking physics data in 2016. This paper summarizes key construction aspects of the Demonstrator and shows preliminary results from initial data.

AB - The Majorana Collaboration is using an array of high-purity Ge detectors to search for neutrinoless double-beta decay in 76Ge. Searches for neutrinoless double-beta decay are understood to be the only viable experimental method for testing the Majorana nature of the neutrino. Observation of this decay would imply violation of lepton number, that neutrinos are Majorana in nature, and provide information on the neutrino mass. The Majorana Demonstrator comprises 44.1 kg of p-type point-contact Ge detectors (29.7 kg enriched in 76Ge) surrounded by a low-background shield system. The experiment achieved a high efficiency of converting raw Ge material to detectors and an unprecedented detector energy resolution of 2.5 keV FWHM at Qββ. The Majorana collaboration began taking physics data in 2016. This paper summarizes key construction aspects of the Demonstrator and shows preliminary results from initial data.

UR - http://www.scopus.com/inward/record.url?scp=85047990788&partnerID=8YFLogxK

U2 - 10.1051/epjconf/201817801006

DO - 10.1051/epjconf/201817801006

M3 - Conference article

AN - SCOPUS:85047990788

SN - 2101-6275

VL - 178

JO - EPJ Web of Conferences

JF - EPJ Web of Conferences

M1 - 01006

T2 - 16th International Symposium on Capture Gamma-Ray Spectroscopy and Related Topics, CGS 2017

Y2 - 18 September 2017 through 22 September 2017

ER -

The Majorana Demonstrator Status and Preliminary Results

Abstract

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