Projected sensitivity of the LUX-ZEPLIN experiment to the two-neutrino and neutrinoless double β decays of Xe134

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

doi:10.1103/physrevc.104.065501

Abstract

The projected sensitivity of the LUX-ZEPLIN (LZ) experiment to two-neutrino and neutrinoless double β decay of Xe134 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 Xe134, for which xenon detectors enriched in Xe136 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.Received 19 May 2021Accepted 19 November 2021DOI:https://doi.org/10.1103/PhysRevC.104.065501©2021 American Physical SocietyPhysics Subject Headings (PhySH)Research AreasDouble beta decayNeutrinoless double beta decayProperties90 ≤ A ≤ 149TechniquesSpectrometers & spectroscopic techniquesNuclear PhysicsParticles & Fields

Full Text