Projected sensitivity of the LUX-ZEPLIN experiment to the 0νββ decay of Xe136

Author(s): Akerib, DS; Akerlof, CW; Alqahtani, A; Alsum, SK; Anderson, TJ; Angelides, N; Araujo, 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; Bras, 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 | Abstract: © 2020 American Physical Society. 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 (g600 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.

J. J. Wang | I. Stancu | A. Bhatti | D. Carlsmith | R. Webb | M. Schubnell | J. Bensinger | S. Burdin | M. Cascella | E. Korolkova | B. Penning | B. L. Paredes | L. Kreczko | M. Tripathi | J. Busenitz | D. Khaitan | F. Wolfs | W. Lorenzon | T. Sumner | B. Krikler | H. Ara'ujo | A. Vaitkus | C. Chan | D. Mckinsey | H. Nelson | R. Taylor | A. Vacheret | T. Shutt | M. Yeh | K. Lesko | P. Zarzhitsky | B. López Paredes | A. Baxter | A. Bernstein | J. Reichenbacher | D. Akerib | K. Kazkaz | J. Dobson | Y. Meng | R. Rosero | V. Kudryavtsev | M. Szydagis | D. Tiedt | J. Balajthy | E. Bernard | M. Carmona-Benitez | L. de Viveiros | E. Druszkiewicz | S. Fiorucci | R. Gaitskell | C. Ghag | C. Hall | S. Hertel | M. Horn | D. Huang | D. Leonard | A. Lindote | M. Lopes | R. Mannino | J. Morad | A. Murphy | C. Nehrkorn | F. Neves | E. K. Pease | C. Silva | V. Solovov | P. Sorensen | K. O'Sullivan | A. Kaboth | S. Luitz | H. Flaecher | C. Akerlof | J. Buckley | V. Bugaev | D. Santone | S. Kravitz | A. Naylor | L. Manenti | J. Lyle | K. Stifter | J. Xu | A. Manalaysay | M. Monzani | S. Alsum | M. Arthurs | X. Bai | S. Balashov | T. Biesiadzinski | K. Boast | B. Boxer | P. Br'as | C. Carels | A. Cole | A. Cottle | J. Cutter | C. Dahl | T. Edberg | A. Fan | T. Fruth | J. Genovesi | M. Gilchriese | M. V. D. van der Grinten | S. Haselschwardt | J. Hor | C. Ignarra | W. Ji | K. Kamdin | A. Khazov | C. D. Kocher | H. Kraus | J. Lee | C. Levy | J. Li | J. Liao | F. Liao | J. Lin | R. Linehan | W. Lippincott | X. Liu | P. Majewski | E. Miller | E. Morrison | B. Mount | J. Nikoleyczik | I. Olcina | K. Oliver-Mallory | K. Palladino | K. Pushkin | C. Rhyne | P. Rossiter | R. Schnee | J. Silk | M. Solmaz | W. Taylor | D. Temples | P. Terman | M. Timalsina | A. Tom'as | L. Tvrznikova | U. Utku | T. J. Whitis | D. Woodward | W. Wang | M. F. Marzioni | S. Shaw | S. Pal | A. Monte | X. Xiang | N. Chott | D. Seymour | J. Mclaughlin | T. Anderson | N. Angelides | J. Armstrong | J. Bang | A. Biekert | H. J. Birch | R. Cabrita | L. D. Viveiros | S. R. Eriksen | E. Fraser | E. Gibson | S. Gokhale | M. D. Grinten | O. Jahangir | J. Johnson | A. Kamaha | I. Khurana | L. Korley | E. Leason | N. Marangou | E. Mizrachi | D. Naim | C. Nedlik | J. Palmer | N. Parveen | G. Pereira | Q. Riffard | G. Rischbieter | A. Sazzad | R. Smith | A. Stevens | N. Swanson | D. Tronstad | W. Turner | J. Watson | R. White | A. Alqahtani | A. Harrison | J. Kraś | R. Liu | C. Loniewski | A. Nilima | G. Rutherford | M. Tan | H. Birch | J. R. Watson | S. Burdin | J. Johnson | M. van der Grinten | R. Webb | Catarina Silva | C. Hall | Jun Xu | J. E. Armstrong | C. Hall | A. Bernstein | H. Araujo | Juhyeong Lee | S. Eriksen

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