4.5 Article

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

期刊

PHYSICAL REVIEW C
卷 97, 期 6, 页码 -

出版社

AMER PHYSICAL SOC
DOI: 10.1103/PhysRevC.97.065503

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资金

  1. NSERC in Canada
  2. CFI in Canada
  3. FRQNT in Canada
  4. NRC in Canada
  5. McDonald Institute (CFREF) in Canada
  6. SNF in Switzerland
  7. IBS in Korea
  8. RFBR in Russia
  9. CAS in China
  10. ISTCP in China
  11. Laboratory Directed Research and Development (LDRD) program at Brookhaven National Laboratory (BNL)
  12. Laboratory Directed Research and Development (LDRD) program at Lawrence Livermore National Laboratory (LLNL)
  13. Laboratory Directed Research and Development (LDRD) program at Oak Ridge National Laboratory (ORNL)
  14. Laboratory Directed Research and Development (LDRD) program at Pacific Northwest National Laboratory (PNNL)
  15. Office of Nuclear Physics within DOE's Office of Science in the United States
  16. Office of Nuclear Physics within NSF in the United States
  17. Office of High Energy Physics within DOE's Office of Science in the United States
  18. Office of High Energy Physics within NSF in the United States
  19. Direct For Mathematical & Physical Scien
  20. Division Of Physics [1506051] Funding Source: National Science Foundation

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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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