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Projected sensitivity of the LUX-ZEPLIN experiment to the two-neutrino and neutrinoless double β decays of 134 Xe

Phys.Rev.C 104 (2021) 6, 065501

Authors:

D. S. Akerib, A. K. Al Musalhi, S. K. Alsum, C. S. Amarasinghe, A. Ames, T. J. Anderson, N. Angelides, H. M. Araujo, J. E. Armstrong, M. Arthurs, X. Bai, J. Balajthy, S. Balashov, J. Bang, J. W. Bargemann, D. Bauer, A. Baxter, P. Beltrame, E. P. Bernard, A. Bernstein, A. Bhatti, A. Biekert, T. P. Biesiadzinski, H. J. Birch, G. M. Blockinger, E. Bodnia, B. Boxer, C. A. J. Brew, P. Bras, S. Burdin, J. K. Busenitz, M. Buuck, R. Cabrita, M. C. Carmona-Benitez, M. Cascella, C. Chan, N. I. Chott, A. Cole, M. V. Converse, A. Cottle, G. Cox, O. Creaner, J. E. Cutter, C. E. Dahl, L. de Viveiros, J. E. Y. Dobson, E. Druszkiewicz, S. R. Eriksen, A. Fan, S. Fayer, N. M. Fearon, S. Fiorucci, H. Flaecher, E. D. Fraser, T. Fruth, R. J. Gaitskell, J. Genovesi, C. Ghag, E. Gibson, S. Gokhale, M. G. D. van der Grinten, C. B. Gwilliam, C. R. Hall, S. J. Haselschwardt, S. A. Hertel, M. Horn, D. Q. Huang, C. M. Ignarra, O. Jahangir, R. S. James, W. Ji, J. Johnson, A. C. Kaboth, A. C. Kamaha, K. Kamdin, K. Kazkaz, D. Khaitan, A. Khazov, I. Khurana, D. Kodroff, L. Korley, E. V. Korolkova, H. Kraus, S. Kravitz, L. Kreczko, B. Krikler, V. A. Kudryavtsev, E. A. Leason, J. Lee, D. S. Leonard, K. T. Lesko, C. Levy, J. Liao, J. Lin, A. Lindote, R. Linehan, W. H. Lippincott, X. Liu , M. I. Lopes, E. Lopez Asamar, B. Lopez Paredes, W. Lorenzon, S. Luitz, P. A. Majewski, A. Manalaysay, L. Manenti, R. L. Mannino, N. Marangou, M. E. McCarthy, D. N. McKinsey, J. McLaughlin, E. H. Miller, E. Mizrachi, A. Monte, M. E. Monzani, J. A. Morad, J. D. Morales Mendoza, E. Morrison, B. J. Mount, A. St. J. Murphy, D. Naim, A. Naylor, C. Nedlik, H. N. Nelson, F. Neves, J. A. Nikoleyczik, A. Nilima, I. Olcina, K. C. Oliver-Mallory, S. Pal, K. J. Palladino, J. Palmer, S. Patton, N. Parveen, E. K. Pease, B. Penning, G. Pereira, A. Piepke, Y. Qie, J. Reichenbacher, C. A. Rhyne, A. Richards, Q. Riffard, G. R. C. Rischbieter, R. Rosero, P. Rossiter, D. Santone, A. B. M. R. Sazzad, R. W. Schnee, P. R. Scovell, S. Shaw, T. A. Shutt, J. J. Silk, C. Silva, R. Smith, M. Solmaz, V. N. Solovov, P. Sorensen, J. Soria, I. Stancu, A. Stevens, K. Stifter, B. Suerfu, T. J. Sumner, N. Swanson, M. Szydagis, W. C. Taylor, R. Taylor, D. J. Temples, P. A. Terman, D. R. Tiedt, M. Timalsina, W. H. To, D. R. Tovey, M. Tripathi, D. R. Tronstad, W. Turner, U. Utku, A. Vaitkus, B. Wang, J. J. Wang, W. Wang, J. R. Watson, R. C. Webb, R. G. White, T. J. Whitis, M. Williams, F. L. H. Wolfs, D. Woodward, C. J. Wright, X. Xiang, J. Xu, M. Yeh, P. Zarzhitsky

Abstract:

The projected sensitivity of the LUX-ZEPLIN (LZ) experiment to two-neutrino and neutrinoless double β decay of 134Xe is presented. LZ is a 10-tonne xenon time-projection chamber optimized for the detection of dark matter particles and is expected to start operating in 2021 at Sanford Underground Research Facility, USA. Its large mass of natural xenon provides an exceptional opportunity to search for the double β decay of 134Xe, for which xenon detectors enriched in 136Xe are less effective. For the two-neutrino decay mode, LZ is predicted to exclude values of the half-life up to 1.7×1024 years at 90% confidence level (CL) and has a three-sigma observation potential of 8.7×1023 years, approaching the predictions of nuclear models. For the neutrinoless decay mode LZ, is projected to exclude values of the half-life up to 7.3×1024 years at 90% CL.
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A measurement of the mean electronic excitation energy of liquid xenon

The European Physical Journal C SpringerOpen 81:12 (2021) 1060

Authors:

Laura Baudis, Patricia Sanchez-Lucas, Kevin Thieme

Abstract:

Liquid xenon is a leader in rare-event physics searches. Accurate modeling of charge and light production is key for simulating signals and backgrounds in this medium. The signal- and background-production models in the Noble Element Simulation Technique (NEST) are presented. NEST is a simulation toolkit based on experimental data, fit using simple, empirical formulae for the average charge and light yields and their variations. NEST also simulates the final scintillation pulses and exhibits the correct energy resolution as a function of the particle type, the energy, and the electric fields. After vetting of NEST against raw data, with several specific examples pulled from XENON, ZEPLIN, LUX/LZ, and PandaX, we interpolate and extrapolate its models to draw new conclusions on the properties of future detectors (e.g., XLZD's), in terms of the best possible discrimination of electron(ic) recoil backgrounds from a potential nuclear recoil signal, especially WIMP dark matter. We discover that the oft-quoted value of 99.5% discrimination is overly conservative, demonstrating that another order of magnitude improvement (99.95% discrimination) can be achieved with a high photon detection efficiency (g1 ~ 15-20%) at reasonably achievable drift fields of 200-350 V/cm.Comment: 24 Pages, 6 Tables, 15 Figures, and 15 Equation
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Cosmic activation of Cresst’s CaWO4 crystals

Journal of Physics Conference Series IOP Publishing 2156:1 (2021) 012227

Authors:

H Kluck, G Angloher, G Benato, A Bento, A Bertolini, R Breier, C Bucci, L Canonica, A D’ Addabbo, S Di Lorenzo, L Einfalt, A Erb, FV Feilitzsch, N Ferreiro Iachellini, S Fichtinger, D Fuchs, A Fuss, A Garai, VM Ghete, P Gorla, S Gupta, D Hauff, M Ješkovský, J Jochum, M Kaznacheeva, A Kinast, H Kraus, A Langenkamper, M Mancuso, L Marini, V Mokina, A Nilima, M Olmi, T Ortmann, C Pagliarone, V Palušová, L Pattavina, F Petricca, W Potzel, P Povinec, F Pröbst, F Pucci, F Reindl, J Rothe, K Schäffner, J Schieck, D Schmiedmayer, S Schönert, C Schwertner, M Stahlberg, L Stodolsky, C Strandhagen, R Strauss, I Usherov, F Wagner, M Willers, V Zema
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Measurement of charge and light yields for Xe127 L-shell electron captures in liquid xenon

Physical Review D American Physical Society (APS) 104:11 (2021) 112001

Authors:

DJ Temples, J McLaughlin, J Bargemann, D Baxter, A Cottle, CE Dahl, WH Lippincott, A Monte, J Phelan
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Projected sensitivity of the LUX-ZEPLIN experiment to the two-neutrino and neutrinoless double β decays of Xe134

Physical Review C American Physical Society (APS) 104:6 (2021) 065501

Authors:

DS Akerib, AK Al Musalhi, SK Alsum, CS Amarasinghe, A Ames, TJ Anderson, N Angelides, HM Araújo, JE Armstrong, M Arthurs, X Bai, J Balajthy, S Balashov, J Bang, JW Bargemann, D Bauer, A Baxter, P Beltrame, EP Bernard, A Bernstein, A Bhatti, A Biekert, TP Biesiadzinski, HJ Birch, GM Blockinger, E Bodnia, B Boxer, CAJ Brew, P Brás, S Burdin, JK Busenitz, M Buuck, R Cabrita, MC Carmona-Benitez, M Cascella, C Chan, NI Chott, A Cole, MV Converse, A Cottle, G Cox, O Creaner, JE Cutter, CE Dahl, L de Viveiros, JEY Dobson, E Druszkiewicz, SR Eriksen, A Fan, S Fayer, NM Fearon, S Fiorucci, H Flaecher, ED Fraser, T Fruth, RJ Gaitskell, J Genovesi, C Ghag, E Gibson, S Gokhale, MGD van der Grinten, CB Gwilliam, CR Hall, SJ Haselschwardt, SA Hertel, M Horn, DQ Huang, MCI gnarra, O Jahangir, RS James, W Ji, J Johnson, AC Kaboth, AC Kamaha, K Kamdin, K Kazkaz, D Khaitan, A Khazov, I Khurana, D Kodroff, L Korley, EV Korolkova, H Kraus, S Kravitz, L Kreczko, B Krikler, VA Kudryavtsev, EA Leason, J Lee, DS Leonard, KT Lesko, C Levy, J Liao, J Lin, A Lindote, R Linehan, WH Lippincott, X Liu, MI Lopes, E López Asamar, B López Paredes, W Lorenzon, S Luitz, PA Majewski, A Manalaysay, L Manenti, RL Mannino, N Marangou, ME McCarthy, DN McKinsey, J McLaughlin, EH Miller, E Mizrachi, A Monte, ME Monzani, JA Morad, JD Morales Mendoza, E Morrison, BJ Mount, A St. J. Murphy, D Naim, A Naylor, C Nedlik, HN Nelson, F Neves, JA Nikoleyczik, A Nilima, I Olcina, KC Oliver-Mallory, S Pal, KJ Palladino, J Palmer, S Patton, N Parveen, EK Pease, B Penning, G Pereira, A Piepke, Y Qie, J Reichenbacher, CA Rhyne, A Richards, Q Riffard, GRC Rischbieter, R Rosero, P Rossiter, D Santone, ABMR Sazzad, RW Schnee, PR Scovell, S Shaw, TA Shutt, JJ Silk, C Silva, R Smith, M Solmaz, VN Solovov, P Sorensen, J Soria, I Stancu, A Stevens, K Stifter, B Suerfu, TJ Sumner, N Swanson, M Szydagis, WC Taylor, R Taylor, DJ Temples, PA Terman, DR Tiedt, M Timalsina, WH To, DR Tovey, M Tripathi, DR Tronstad, W Turner, U Utku, A Vaitkus, B Wang, JJ Wang, W Wang, JR Watson, RC Webb, RG White, TJ Whitis, M Williams, FLH Wolfs, D Woodward, CJ Wright, X Xiang, J Xu, M Yeh, P Zarzhitsky
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