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Projected sensitivity of the LUX-ZEPLIN experiment to the 0νββ decay of Xe 136

  • Author(s): Akerib, DS
  • Akerlof, CW
  • Alqahtani, A
  • Alsum, SK
  • Anderson, TJ
  • Angelides, N
  • Araújo, HM
  • Armstrong, JE
  • Arthurs, M
  • Bai, X
  • Balajthy, J
  • Balashov, S
  • Bang, J
  • Baxter, A
  • Bensinger, J
  • Bernard, EP
  • Bernstein, A
  • Bhatti, A
  • Biekert, A
  • Biesiadzinski, TP
  • Birch, HJ
  • Boast, KE
  • Boxer, B
  • Brás, P
  • Buckley, JH
  • Bugaev, VV
  • Burdin, S
  • Busenitz, JK
  • Cabrita, R
  • Carels, C
  • Carlsmith, DL
  • Carmona-Benitez, MC
  • Cascella, M
  • Chan, C
  • Chott, NI
  • Cole, A
  • Cottle, A
  • Cutter, JE
  • Dahl, CE
  • De Viveiros, L
  • Dobson, JEY
  • Druszkiewicz, E
  • Edberg, TK
  • Eriksen, SR
  • Fan, A
  • Fiorucci, S
  • Flaecher, H
  • Fraser, ED
  • Fruth, T
  • Gaitskell, RJ
  • Genovesi, J
  • Ghag, C
  • Gibson, E
  • Gilchriese, MGD
  • Gokhale, S
  • Van Der Grinten, MGD
  • Hall, CR
  • Harrison, A
  • Haselschwardt, SJ
  • Hertel, SA
  • Hor, JYK
  • Horn, M
  • Huang, DQ
  • Ignarra, CM
  • Jahangir, O
  • Ji, W
  • Johnson, J
  • Kaboth, AC
  • Kamaha, AC
  • Kamdin, K
  • Kazkaz, K
  • Khaitan, D
  • Khazov, A
  • Khurana, I
  • Kocher, CD
  • Korley, L
  • Korolkova, EV
  • Kras, J
  • Kraus, H
  • Kravitz, S
  • Kreczko, L
  • Krikler, B
  • Kudryavtsev, VA
  • Leason, EA
  • Lee, J
  • Leonard, DS
  • Lesko, KT
  • Levy, C
  • Li, J
  • Liao, J
  • Liao, FT
  • Lin, J
  • Lindote, A
  • Linehan, R
  • Lippincott, WH
  • Liu, R
  • Liu, X
  • Loniewski, C
  • Lopes, MI
  • López Paredes, B
  • et al.
Abstract

The LUX-ZEPLIN (LZ) experiment will enable a neutrinoless double β decay search in parallel to the main science goal of discovering dark matter particle interactions. We report the expected LZ sensitivity to Xe136 neutrinoless double β decay, taking advantage of the significant (>600 kg) Xe136 mass contained within the active volume of LZ without isotopic enrichment. After 1000 live-days, the median exclusion sensitivity to the half-life of Xe136 is projected to be 1.06×1026 years (90% confidence level), similar to existing constraints. We also report the expected sensitivity of a possible subsequent dedicated exposure using 90% enrichment with Xe136 at 1.06×1027 years.

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