Sensitivity and discovery potential of the proposed nEXO experiment to neutrinoless double-β decay

被引:145
作者
Albert, J. B. [1 ,2 ]
Anton, G. [3 ]
Arnquist, I. J. [4 ]
Badhrees, I. [5 ]
Barbeau, P. [6 ,7 ]
Beck, D. [8 ]
Belov, V. [9 ]
Bourque, F. [10 ]
Brodsky, J. P. [11 ]
Brown, E. [12 ]
Brunner, T. [13 ,14 ]
Burenkov, A. [9 ]
Cao, G. F. [15 ]
Cao, L. [16 ]
Cen, W. R. [15 ]
Chambers, C. [17 ]
Charlebois, S. A. [10 ]
Chiu, M. [18 ]
Cleveland, B. [19 ,33 ]
Coon, M. [8 ]
Craycraft, A. [17 ]
Cree, W. [5 ]
Cote, M. [10 ]
Dalmasson, J. [20 ,21 ]
Daniels, T. [20 ,34 ]
Daugherty, S. J. [1 ,2 ]
Daughhetee, J. [22 ]
Delaquis, S. [20 ]
Mesrobian-Kabakian, A. Der [19 ]
DeVoe, R. [21 ]
Didberidze, T. [23 ]
Dilling, J. [14 ]
Ding, Y. Y. [15 ]
Dolinski, M. J. [24 ]
Dragone, A. [20 ]
Fabris, L. [25 ]
Fairbank, W. [17 ]
Farine, J. [19 ]
Feyzbakhsh, S. [26 ,27 ]
Fontaine, R. [10 ]
Fudenberg, D. [21 ]
Giacomini, G. [18 ]
Gornea, R. [5 ,14 ]
Graham, K. [5 ]
Gratta, G. [21 ]
Hansen, E. V. [24 ]
Harris, D. [17 ]
Hasan, M. [22 ]
Heffner, M. [11 ]
Hoppe, E. W. [4 ]
机构
[1] Indiana Univ, Dept Phys, Bloomington, IN 47405 USA
[2] Indiana Univ, CEEM, Bloomington, IN 47405 USA
[3] Friedrich Alexander Univ Erlangen Nurnberg, ECAP, D-91058 Erlangen, Germany
[4] Pacific Northwest Natl Lab, Richland, WA 99352 USA
[5] Carleton Univ, Dept Phys, Ottawa, ON K1S 5B6, Canada
[6] Duke Univ, Dept Phys, Durham, NC 27708 USA
[7] TUNL, Durham, NC 27708 USA
[8] Univ Illinois, Dept Phys, Urbana, IL 61801 USA
[9] Inst Theoret & Expt Phys, Moscow, Russia
[10] Univ Sherbrooke, Sherbrooke, PQ J1K 2R1, Canada
[11] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA
[12] Rensselaer Polytech Inst, Dept Phys Appl Phys & Astron, Troy, NY 12180 USA
[13] McGill Univ, Dept Phys, Montreal, PQ, Canada
[14] TRIUMF, Vancouver, BC V6T 2A3, Canada
[15] Inst High Energy Phys, Beijing, Peoples R China
[16] Inst Microelect, Beijing, Peoples R China
[17] Colorado State Univ, Dept Phys, Ft Collins, CO 80523 USA
[18] Brookhaven Natl Lab, Upton, NY 11973 USA
[19] Laurentian Univ, Dept Phys, Sudbury, ON P3E 2C6, Canada
[20] SLAC Natl Accelerator Lab, Menlo Pk, CA 94025 USA
[21] Stanford Univ, Dept Phys, Stanford, CA 94305 USA
[22] Univ South Dakota, Dept Phys, Vermillion, SD 57069 USA
[23] Univ Alabama, Dept Phys & Astron, Tuscaloosa, AL 35487 USA
[24] Drexel Univ, Dept Phys, Philadelphia, PA 19104 USA
[25] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA
[26] Univ Massachusetts, Amherst Ctr Fundamental Interact, Amherst, MA 01003 USA
[27] Univ Massachusetts, Dept Phys, Amherst, MA 01003 USA
[28] Yale Univ, Dept Phys, New Haven, CT 06511 USA
[29] SUNY Stony Brook, Dept Phys & Astron, Stony Brook, NY 11794 USA
[30] IBS Ctr Underground Phys, Daejeon 34047, South Korea
[31] CALTECH, Kellogg Lab, Pasadena, CA 91125 USA
[32] Univ Bern, Albert Einstein Ctr, LHEP, Bern, Switzerland
[33] SNOLAB, Sudbury, ON, Canada
[34] UNC Wilmington, Dept Phys & Phys Oceanog, Wilmington, NC 28403 USA
[35] Univ Calif Davis, Davis, CA 95616 USA
[36] Argonne Natl Lab, Argonne, IL 60439 USA
[37] Lawrence Berkeley Natl Lab, Berkeley, CA USA
[38] Laurentian Univ, Subdury, ON, Canada
[39] OneBridge Solut, Boise, ID USA
[40] Tsinghua Univ, Beijing, Peoples R China
基金
美国国家科学基金会; 加拿大自然科学与工程研究理事会;
关键词
TRACE RADIOACTIVE IMPURITIES; CONSTRUCTION MATERIALS; MAJORANA NEUTRINOS; DETECTORS;
D O I
10.1103/PhysRevC.97.065503
中图分类号
O57 [原子核物理学、高能物理学];
学科分类号
070202 ;
摘要
The next-generation Enriched Xenon Observatory (nEXO) is a proposed experiment to search for neutrinoless double-beta (0 nu beta beta) decay in Xe-136 with a target half-life sensitivity of approximately 10(28) yr using 5 x 10(3) kg of isotopically enriched liquid-xenon in a time projection chamber. This improvement of two orders of magnitude in sensitivity over current limits is obtained by a significant increase of the Xe-136 mass, the monolithic and homogeneous configuration of the active medium, and the multiparameter measurements of the interactions enabled by the time projection chamber. The detector concept and anticipated performance are presented based upon demonstrated realizable background rates.
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