Results of the MAJORANA DEMONSTRATOR's Search for Double-Beta Decay of 76Ge to Excited States of 76Se

I. S. Guinn; I. J. Arnquist; F. T. Avignone; A. S. Barabash; C. J. Barton; F. E. Bertrand; B. Bos; M. Busch; M. Buuck; T. S. Caldwell; Y. D. Chan; C. D. Christofferson; P. H. Chu; M. L. Clark; C. Cuesta; J. A. Detwiler; A. Drobizhev; D. W. Edwins; Yu Efremenko; H. Ejiri; S. R. Elliott; T. Gilliss; G. K. Giovanetti; M. P. Green; J. Gruszko; V. E. Guiseppe; C. R. Haufe; R. J. Hegedus; R. Henning; D. Hervas Aguilar; E. W. Hoppe; A. Hostiuc; M. F. Kidd; I. Kim; R. T. Kouzes; A. M. Lopez; J. M. López-Castano; E. L. Martin; R. D. Martin; R. Massarczyk; S. J. Meijer; S. Mertens; J. Myslik; T. K. Oli; G. Othman; W. Pettus; A. W.P. Poon; D. C. Radford; J. Rager; A. L. Reine; K. Rielage; N. W. Ruof; M. J. Stortini; D. Tedeschi; R. L. Varner; J. F. Wilkerson; C. Wiseman; W. Xu; C. H. Yu; B. X. Zhu

doi:10.1088/1742-6596/1468/1/012115

Results of the MAJORANA DEMONSTRATOR's Search for Double-Beta Decay of ⁷⁶Ge to Excited States of ⁷⁶Se

I. S. Guinn, I. J. Arnquist, F. T. Avignone, A. S. Barabash, C. J. Barton, F. E. Bertrand, B. Bos, M. Busch, M. Buuck, T. S. Caldwell, Y. D. Chan, C. D. Christofferson, P. H. Chu, M. L. Clark, C. Cuesta, J. A. Detwiler, A. Drobizhev, D. W. Edwins, Yu Efremenko, H. EjiriS. R. Elliott, T. Gilliss, G. K. Giovanetti, M. P. Green, J. Gruszko, V. E. Guiseppe, C. R. Haufe, R. J. Hegedus, R. Henning, D. Hervas Aguilar, E. W. Hoppe, A. Hostiuc, M. F. Kidd, I. Kim, R. T. Kouzes, A. M. Lopez, J. M. López-Castano, E. L. Martin, R. D. Martin, R. Massarczyk, S. J. Meijer, S. Mertens, J. Myslik, T. K. Oli, G. Othman, W. Pettus, A. W.P. Poon, D. C. Radford, J. Rager, A. L. Reine, K. Rielage, N. W. Ruof, M. J. Stortini, D. Tedeschi, R. L. Varner, J. F. Wilkerson, C. Wiseman, W. Xu, C. H. Yu, B. X. Zhu

Professur für Dark Matter

Publikation: Beitrag in Fachzeitschrift › Konferenzartikel › Begutachtung

4 Zitate (Scopus)

Abstract

The MAJORANA DEMONSTRATOR is searching for double-beta decay of ⁷⁶Ge to excited states (E.S.) in ⁷⁶Se using a modular array of high purity Germanium detectors. ⁷⁶Ge can decay into three E.S.s of ⁷⁶Se. The E.S. decays have a clear event signature consisting of a ββ-decay with the prompt emission of one or two γ-rays, resulting in with high probability in a multi-site event. The granularity of the DEMONSTRATOR detector array enables powerful discrimination of this event signature from backgrounds. Using 21.3 kg-y of isotopic exposure, the DEMONSTRATOR has set world leading limits for each E.S. decay, with 90% CL lower half-life limits in the range of (0.56 2.1) ⋅ 10²⁴ y. In particular, for the 2v transition to the first 0⁺ E.S. of ⁷⁶Se, a lower half-life limit of 0.68 ⋅ 10²⁴ at 90% CL was achieved.

Originalsprache	Englisch
Aufsatznummer	012115
Fachzeitschrift	Journal of Physics: Conference Series
Jahrgang	1468
Ausgabenummer	1
DOIs	https://doi.org/10.1088/1742-6596/1468/1/012115
Publikationsstatus	Veröffentlicht - 20 März 2020
Veranstaltung	16th International Conference on Topics in Astroparticle and Underground Physics, TAUP 2019 - Toyama, Japan Dauer: 9 Sept. 2019 → 13 Sept. 2019

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10.1088/1742-6596/1468/1/012115

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Guinn, I. S., Arnquist, I. J., Avignone, F. T., Barabash, A. S., Barton, C. J., Bertrand, F. E., Bos, B., Busch, M., Buuck, M., Caldwell, T. S., Chan, Y. D., Christofferson, C. D., Chu, P. H., Clark, M. L., Cuesta, C., Detwiler, J. A., Drobizhev, A., Edwins, D. W., Efremenko, Y., ... Zhu, B. X. (2020). Results of the MAJORANA DEMONSTRATOR's Search for Double-Beta Decay of ⁷⁶Ge to Excited States of ⁷⁶Se. Journal of Physics: Conference Series, 1468(1), Artikel 012115. https://doi.org/10.1088/1742-6596/1468/1/012115

@article{e0e1fd11d8a8445e9b815ba98630ff69,

title = "Results of the MAJORANA DEMONSTRATOR's Search for Double-Beta Decay of 76Ge to Excited States of 76Se",

abstract = "The MAJORANA DEMONSTRATOR is searching for double-beta decay of 76Ge to excited states (E.S.) in 76Se using a modular array of high purity Germanium detectors. 76Ge can decay into three E.S.s of 76Se. The E.S. decays have a clear event signature consisting of a ββ-decay with the prompt emission of one or two γ-rays, resulting in with high probability in a multi-site event. The granularity of the DEMONSTRATOR detector array enables powerful discrimination of this event signature from backgrounds. Using 21.3 kg-y of isotopic exposure, the DEMONSTRATOR has set world leading limits for each E.S. decay, with 90% CL lower half-life limits in the range of (0.56 2.1) ⋅ 1024 y. In particular, for the 2v transition to the first 0+ E.S. of 76Se, a lower half-life limit of 0.68 ⋅ 1024 at 90% CL was achieved.",

author = "Guinn, {I. S.} and Arnquist, {I. J.} and Avignone, {F. T.} and Barabash, {A. S.} and Barton, {C. J.} and Bertrand, {F. E.} and B. Bos and M. Busch and M. Buuck and Caldwell, {T. S.} and Chan, {Y. D.} and Christofferson, {C. D.} and Chu, {P. H.} and Clark, {M. L.} and C. Cuesta and Detwiler, {J. A.} and A. Drobizhev and Edwins, {D. W.} 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 Guiseppe, {V. E.} and Haufe, {C. R.} and Hegedus, {R. J.} and R. Henning and {Hervas Aguilar}, D. and Hoppe, {E. W.} and A. Hostiuc and Kidd, {M. F.} and I. Kim and Kouzes, {R. T.} and Lopez, {A. M.} and L{\'o}pez-Castano, {J. M.} and Martin, {E. L.} and Martin, {R. D.} and R. Massarczyk and Meijer, {S. J.} and S. Mertens and J. Myslik and Oli, {T. K.} 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 Stortini, {M. J.} and D. Tedeschi and Varner, {R. L.} and Wilkerson, {J. F.} and C. Wiseman and W. Xu and Yu, {C. H.} and Zhu, {B. X.}",

note = "Publisher Copyright: {\textcopyright} 2020 Published under licence by IOP Publishing Ltd.; 16th International Conference on Topics in Astroparticle and Underground Physics, TAUP 2019 ; Conference date: 09-09-2019 Through 13-09-2019",

year = "2020",

month = mar,

day = "20",

doi = "10.1088/1742-6596/1468/1/012115",

language = "English",

volume = "1468",

journal = "Journal of Physics: Conference Series",

issn = "1742-6588",

publisher = "IOP Publishing Ltd.",

number = "1",

}

Guinn, IS, Arnquist, IJ, Avignone, FT, Barabash, AS, Barton, CJ, Bertrand, FE, Bos, B, Busch, M, Buuck, M, Caldwell, TS, Chan, YD, Christofferson, CD, Chu, PH, Clark, ML, Cuesta, C, Detwiler, JA, Drobizhev, A, Edwins, DW, Efremenko, Y, Ejiri, H, Elliott, SR, Gilliss, T, Giovanetti, GK, Green, MP, Gruszko, J, Guiseppe, VE, Haufe, CR, Hegedus, RJ, Henning, R, Hervas Aguilar, D, Hoppe, EW, Hostiuc, A, Kidd, MF, Kim, I, Kouzes, RT, Lopez, AM, López-Castano, JM, Martin, EL, Martin, RD, Massarczyk, R, Meijer, SJ, Mertens, S, Myslik, J, Oli, TK, Othman, G, Pettus, W, Poon, AWP, Radford, DC, Rager, J, Reine, AL, Rielage, K, Ruof, NW, Stortini, MJ, Tedeschi, D, Varner, RL, Wilkerson, JF, Wiseman, C, Xu, W, Yu, CH & Zhu, BX 2020, 'Results of the MAJORANA DEMONSTRATOR's Search for Double-Beta Decay of ⁷⁶Ge to Excited States of ⁷⁶Se', Journal of Physics: Conference Series, Jg. 1468, Nr. 1, 012115. https://doi.org/10.1088/1742-6596/1468/1/012115

TY - JOUR

T1 - Results of the MAJORANA DEMONSTRATOR's Search for Double-Beta Decay of 76Ge to Excited States of 76Se

AU - Guinn, I. S.

AU - Arnquist, I. J.

AU - Avignone, F. T.

AU - Barabash, A. S.

AU - Barton, C. J.

AU - Bertrand, F. E.

AU - Bos, B.

AU - Busch, M.

AU - Buuck, M.

AU - Caldwell, T. S.

AU - Chan, Y. D.

AU - Christofferson, C. D.

AU - Chu, P. H.

AU - Clark, M. L.

AU - Cuesta, C.

AU - Detwiler, J. A.

AU - Drobizhev, A.

AU - Edwins, D. W.

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 - Guiseppe, V. E.

AU - Haufe, C. R.

AU - Hegedus, R. J.

AU - Henning, R.

AU - Hervas Aguilar, D.

AU - Hoppe, E. W.

AU - Hostiuc, A.

AU - Kidd, M. F.

AU - Kim, I.

AU - Kouzes, R. T.

AU - Lopez, A. M.

AU - López-Castano, J. M.

AU - Martin, E. L.

AU - Martin, R. D.

AU - Massarczyk, R.

AU - Meijer, S. J.

AU - Mertens, S.

AU - Myslik, J.

AU - Oli, T. K.

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 - Stortini, M. J.

AU - Tedeschi, D.

AU - Varner, R. L.

AU - Wilkerson, J. F.

AU - Wiseman, C.

AU - Xu, W.

AU - Yu, C. H.

AU - Zhu, B. X.

PY - 2020/3/20

Y1 - 2020/3/20

N2 - The MAJORANA DEMONSTRATOR is searching for double-beta decay of 76Ge to excited states (E.S.) in 76Se using a modular array of high purity Germanium detectors. 76Ge can decay into three E.S.s of 76Se. The E.S. decays have a clear event signature consisting of a ββ-decay with the prompt emission of one or two γ-rays, resulting in with high probability in a multi-site event. The granularity of the DEMONSTRATOR detector array enables powerful discrimination of this event signature from backgrounds. Using 21.3 kg-y of isotopic exposure, the DEMONSTRATOR has set world leading limits for each E.S. decay, with 90% CL lower half-life limits in the range of (0.56 2.1) ⋅ 1024 y. In particular, for the 2v transition to the first 0+ E.S. of 76Se, a lower half-life limit of 0.68 ⋅ 1024 at 90% CL was achieved.

AB - The MAJORANA DEMONSTRATOR is searching for double-beta decay of 76Ge to excited states (E.S.) in 76Se using a modular array of high purity Germanium detectors. 76Ge can decay into three E.S.s of 76Se. The E.S. decays have a clear event signature consisting of a ββ-decay with the prompt emission of one or two γ-rays, resulting in with high probability in a multi-site event. The granularity of the DEMONSTRATOR detector array enables powerful discrimination of this event signature from backgrounds. Using 21.3 kg-y of isotopic exposure, the DEMONSTRATOR has set world leading limits for each E.S. decay, with 90% CL lower half-life limits in the range of (0.56 2.1) ⋅ 1024 y. In particular, for the 2v transition to the first 0+ E.S. of 76Se, a lower half-life limit of 0.68 ⋅ 1024 at 90% CL was achieved.

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U2 - 10.1088/1742-6596/1468/1/012115

DO - 10.1088/1742-6596/1468/1/012115

M3 - Conference article

AN - SCOPUS:85083099456

SN - 1742-6588

VL - 1468

JO - Journal of Physics: Conference Series

JF - Journal of Physics: Conference Series

IS - 1

M1 - 012115

T2 - 16th International Conference on Topics in Astroparticle and Underground Physics, TAUP 2019

Y2 - 9 September 2019 through 13 September 2019