Projected WIMP sensitivity of the LUX-ZEPLIN (LZ) dark matter experiment

D. S. Akerib; C. W. Akerlof; S. K. Alsum; H. M. Araújo; M. Arthurs; X. Bai; A. J. Bailey; J. Balajthy; S. Balashov; D. Bauer; J. Belle; P. Beltrame; T. Benson; E. P. Bernard; T. P. Biesiadzinski; K. E. Boast; B. Boxer; P. Brás; J. H. Buckley; V. V. Bugaev; S. Burdin; J. K. Busenitz; C. Carels; D. L. Carlsmith; B. Carlson; M. C. Carmona-Benitez; C. Chan; J. J. Cherwinka; A. Cole; A. Cottle; W. W. Craddock; A. Currie; J. E. Cutter; C. E. Dahl; L. de Viveiros; A. Dobi; J. E. Y. Dobson; E. Druszkiewicz; T. K. Edberg; W. R. Edwards; A. Fan; S. Fayer; S. Fiorucci; T. Fruth; R. J. Gaitskell; J. Genovesi; C. Ghag; M. G. D. Gilchriese; M. G. D. van der Grinten; C. R. Hall

doi:10.1103/PhysRevD.101.052002

Projected WIMP sensitivity of the LUX-ZEPLIN (LZ) dark matter experiment

Instrumentation and Methods for Astrophysics 2021-11-19 v2 Cosmology and Nongalactic Astrophysics High Energy Physics - Experiment Instrumentation and Detectors

Authors: D. S. Akerib , C. W. Akerlof , S. K. Alsum , H. M. Araújo , M. Arthurs , X. Bai , A. J. Bailey , J. Balajthy , S. Balashov , D. Bauer , J. Belle , P. Beltrame , T. Benson , E. P. Bernard , T. P. Biesiadzinski , K. E. Boast , B. Boxer , P. Brás , J. H. Buckley , V. V. Bugaev , S. Burdin , J. K. Busenitz , C. Carels , D. L. Carlsmith , B. Carlson , M. C. Carmona-Benitez , C. Chan , J. J. Cherwinka , A. Cole , A. Cottle , W. W. Craddock , A. Currie , J. E. Cutter , C. E. Dahl , L. de Viveiros , A. Dobi , J. E. Y. Dobson , E. Druszkiewicz , T. K. Edberg , W. R. Edwards , A. Fan , S. Fayer , S. Fiorucci , T. Fruth , R. J. Gaitskell , J. Genovesi , C. Ghag , M. G. D. Gilchriese , M. G. D. van der Grinten , C. R. Hall , S. Hans , K. Hanzel , S. J. Haselschwardt , S. A. Hertel , S. Hillbrand , C. Hjemfelt , M. D. Hoff , J. Y-K. Hor , D. Q. Huang , C. M. Ignarra , W. Ji , A. C. Kaboth , K. Kamdin , J. Keefner , D. Khaitan , A. Khazov , Y. D. Kim , C. D. Kocher , E. V. Korolkova , H. Kraus , H. J. Krebs , L. Kreczko , B. Krikler , V. A. Kudryavtsev , S. Kyre , J. Lee , B. G. Lenardo , D. S. Leonard , K. T. Lesko , C. Levy , J. Li , J. Liao , F. -T. Liao , J. Lin , A. Lindote , R. Linehan , W. H. Lippincott , X. Liu , M. I. Lopes , B. López Paredes , W. Lorenzon , S. Luitz , J. M. Lyle , P. Majewski , A. Manalaysay , R. L. Mannino , C. Maupin , D. N. McKinsey , Y. Meng , E. H. Miller , J. Mock , M. E. Monzani , J. A. Morad , E. Morrison , B. J. Mount , A. St. J. Murphy , H. N. Nelson , F. Neves , J. Nikoleyczik , K. O'Sullivan , I. Olcina , M. A. Olevitch , K. C. Oliver-Mallory , K. J. Palladino , S. J. Patton , E. K. Pease , B. Penning , A. Piepke , S. Powell , R. M. Preece , K. Pushkin , B. N. Ratcliff , J. Reichenbacher , C. A. Rhyne , A. Richards , J. P. Rodrigues , R. Rosero , P. Rossiter , J. S. Saba , M. Sarychev , R. W. Schnee , M. Schubnell , P. R. Scovell , S. Shaw , T. A. Shutt , J. J. Silk , C. Silva , K. Skarpaas , W. Skulski , M. Solmaz , V. N. Solovov , P. Sorensen , I. Stancu , M. R. Stark , T. M. Stiegler , K. Stifter , M. Szydagis , W. C. Taylor , R. Taylor , D. J. Taylor , D. Temples , P. A. Terman , K. J. Thomas , M. Timalsina , W. H. To , A. Tomás , T. E. Tope , M. Tripathi , C. E. Tull , L. Tvrznikova , U. Utku , J. Va'vra , A. Vacheret , J. R. Verbus , E. Voirin , W. L. Waldron , J. R. Watson , R. C. Webb , D. T. White , T. J. Whitis , W. J. Wisniewski , M. S. Witherell , F. L. H. Wolfs , D. Woodward , S. D. Worm , M. Yeh , J. Yin , I. Young

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Abstract

LUX-ZEPLIN (LZ) is a next generation dark matter direct detection experiment that will operate 4850 feet underground at the Sanford Underground Research Facility (SURF) in Lead, South Dakota, USA. Using a two-phase xenon detector with an active mass of 7~tonnes, LZ will search primarily for low-energy interactions with Weakly Interacting Massive Particles (WIMPs), which are hypothesized to make up the dark matter in our galactic halo. In this paper, the projected WIMP sensitivity of LZ is presented based on the latest background estimates and simulations of the detector. For a 1000~live day run using a 5.6~tonne fiducial mass, LZ is projected to exclude at 90\% confidence level spin-independent WIMP-nucleon cross sections above $1.4 \times 10^{-48}$ ~cm $^{2}$ for a 40~ $\mathrm{GeV}/c^{2}$ mass WIMP. Additionally, a $5\sigma$ discovery potential is projected reaching cross sections below the exclusion limits of recent experiments. For spin-dependent WIMP-neutron(-proton) scattering, a sensitivity of $2.3 \times 10^{-43}$ ~cm $^{2}$ ( $7.1 \times 10^{-42}$ ~cm $^{2}$ ) for a 40~ $\mathrm{GeV}/c^{2}$ mass WIMP is expected. With underground installation well underway, LZ is on track for commissioning at SURF in 2020.

Keywords

dark matter wimp lux-zeplin direct detection xenon detector sensitivity projection spin-independent cross section

Cite

@article{arxiv.1802.06039,
title = {Projected WIMP sensitivity of the LUX-ZEPLIN (LZ) dark matter experiment},
author = {D. S. Akerib and C. W. Akerlof and S. K. Alsum and H. M. Araújo and M. Arthurs and X. Bai and A. J. Bailey and J. Balajthy and S. Balashov and D. Bauer and J. Belle and P. Beltrame and T. Benson and E. P. Bernard and T. P. Biesiadzinski and K. E. Boast and B. Boxer and P. Brás and J. H. Buckley and V. V. Bugaev and S. Burdin and J. K. Busenitz and C. Carels and D. L. Carlsmith and B. Carlson and M. C. Carmona-Benitez and C. Chan and J. J. Cherwinka and A. Cole and A. Cottle and W. W. Craddock and A. Currie and J. E. Cutter and C. E. Dahl and L. de Viveiros and A. Dobi and J. E. Y. Dobson and E. Druszkiewicz and T. K. Edberg and W. R. Edwards and A. Fan and S. Fayer and S. Fiorucci and T. Fruth and R. J. Gaitskell and J. Genovesi and C. Ghag and M. G. D. Gilchriese and M. G. D. van der Grinten and C. R. Hall and S. Hans and K. Hanzel and S. J. Haselschwardt and S. A. Hertel and S. Hillbrand and C. Hjemfelt and M. D. Hoff and J. Y-K. Hor and D. Q. Huang and C. M. Ignarra and W. Ji and A. C. Kaboth and K. Kamdin and J. Keefner and D. Khaitan and A. Khazov and Y. D. Kim and C. D. Kocher and E. V. Korolkova and H. Kraus and H. J. Krebs and L. Kreczko and B. Krikler and V. A. Kudryavtsev and S. Kyre and J. Lee and B. G. Lenardo and D. S. Leonard and K. T. Lesko and C. Levy and J. Li and J. Liao and F. -T. Liao and J. Lin and A. Lindote and R. Linehan and W. H. Lippincott and X. Liu and M. I. Lopes and B. López Paredes and W. Lorenzon and S. Luitz and J. M. Lyle and P. Majewski and A. Manalaysay and R. L. Mannino and C. Maupin and D. N. McKinsey and Y. Meng and E. H. Miller and J. Mock and M. E. Monzani and J. A. Morad and E. Morrison and B. J. Mount and A. St. J. Murphy and H. N. Nelson and F. Neves and J. Nikoleyczik and K. O'Sullivan and I. Olcina and M. A. Olevitch and K. C. Oliver-Mallory and K. J. Palladino and S. J. Patton and E. K. Pease and B. Penning and A. Piepke and S. Powell and R. M. Preece and K. Pushkin and B. N. Ratcliff and J. Reichenbacher and C. A. Rhyne and A. Richards and J. P. Rodrigues and R. Rosero and P. Rossiter and J. S. Saba and M. Sarychev and R. W. Schnee and M. Schubnell and P. R. Scovell and S. Shaw and T. A. Shutt and J. J. Silk and C. Silva and K. Skarpaas and W. Skulski and M. Solmaz and V. N. Solovov and P. Sorensen and I. Stancu and M. R. Stark and T. M. Stiegler and K. Stifter and M. Szydagis and W. C. Taylor and R. Taylor and D. J. Taylor and D. Temples and P. A. Terman and K. J. Thomas and M. Timalsina and W. H. To and A. Tomás and T. E. Tope and M. Tripathi and C. E. Tull and L. Tvrznikova and U. Utku and J. Va'vra and A. Vacheret and J. R. Verbus and E. Voirin and W. L. Waldron and J. R. Watson and R. C. Webb and D. T. White and T. J. Whitis and W. J. Wisniewski and M. S. Witherell and F. L. H. Wolfs and D. Woodward and S. D. Worm and M. Yeh and J. Yin and I. Young},
journal= {arXiv preprint arXiv:1802.06039},
year = {2021}
}

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14 pages, 11 figures

Projected WIMP sensitivity of the LUX-ZEPLIN (LZ) dark matter experiment

Abstract

Keywords

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