First Dark Matter Search Results from the LUX-ZEPLIN (LZ) Experiment

(LUX-ZEPLIN Collaboration)

doi:10.1103/PhysRevLett.131.041002

First Dark Matter Search Results from the LUX-ZEPLIN (LZ) Experiment

(LUX-ZEPLIN Collaboration)

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680 Scopus citations

Abstract

The LUX-ZEPLIN experiment is a dark matter detector centered on a dual-phase xenon time projection chamber operating at the Sanford Underground Research Facility in Lead, South Dakota, USA. This Letter reports results from LUX-ZEPLIN's first search for weakly interacting massive particles (WIMPs) with an exposure of 60 live days using a fiducial mass of 5.5 t. A profile-likelihood ratio analysis shows the data to be consistent with a background-only hypothesis, setting new limits on spin-independent WIMP-nucleon, spin-dependent WIMP-neutron, and spin-dependent WIMP-proton cross sections for WIMP masses above 9 GeV/c2. The most stringent limit is set for spin-independent scattering at 36 GeV/c2, rejecting cross sections above 9.2×10-48 cm at the 90% confidence level.

Original language	English (US)
Article number	041002
Journal	Physical review letters
Volume	131
Issue number	4
DOIs	https://doi.org/10.1103/PhysRevLett.131.041002
State	Published - Jul 28 2023

All Science Journal Classification (ASJC) codes

General Physics and Astronomy

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10.1103/PhysRevLett.131.041002

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@article{c41e8cd61fb644d598ffbfbae610c838,

title = "First Dark Matter Search Results from the LUX-ZEPLIN (LZ) Experiment",

abstract = "The LUX-ZEPLIN experiment is a dark matter detector centered on a dual-phase xenon time projection chamber operating at the Sanford Underground Research Facility in Lead, South Dakota, USA. This Letter reports results from LUX-ZEPLIN's first search for weakly interacting massive particles (WIMPs) with an exposure of 60 live days using a fiducial mass of 5.5 t. A profile-likelihood ratio analysis shows the data to be consistent with a background-only hypothesis, setting new limits on spin-independent WIMP-nucleon, spin-dependent WIMP-neutron, and spin-dependent WIMP-proton cross sections for WIMP masses above 9 GeV/c2. The most stringent limit is set for spin-independent scattering at 36 GeV/c2, rejecting cross sections above 9.2×10-48 cm at the 90\% confidence level.",

author = "\{(LUX-ZEPLIN Collaboration)\} and J. Aalbers and Akerib, \{D. S.\} and Akerlof, \{C. W.\} and \{Al Musalhi\}, \{A. K.\} and F. Alder and A. Alqahtani and Alsum, \{S. K.\} and Amarasinghe, \{C. S.\} and A. Ames and Anderson, \{T. J.\} and N. Angelides and Ara{\'u}jo, \{H. M.\} and Armstrong, \{J. E.\} and M. Arthurs and S. Azadi and Bailey, \{A. J.\} and A. Baker and J. Balajthy and S. Balashov and J. Bang and Bargemann, \{J. W.\} and Barry, \{M. J.\} and J. Barthel and D. Bauer and A. Baxter and K. Beattie and J. Belle and P. Beltrame and J. Bensinger and T. Benson and Bernard, \{E. P.\} and A. Bhatti and A. Biekert and Biesiadzinski, \{T. P.\} and Birch, \{H. J.\} and B. Birrittella and Blockinger, \{G. M.\} and Boast, \{K. E.\} and B. Boxer and R. Bramante and Brew, \{C. A.J.\} and P. Br{\'a}s and Buckley, \{J. H.\} and Bugaev, \{V. V.\} and S. Burdin and Busenitz, \{J. K.\} and M. Buuck and R. Cabrita and Carmona-Benitez, \{M. C.\} and \{De Viveiros\}, L.",

note = "Publisher Copyright: {\textcopyright} 2023 authors. Published by the American Physical Society.",

year = "2023",

month = jul,

day = "28",

doi = "10.1103/PhysRevLett.131.041002",

language = "English (US)",

volume = "131",

journal = "Physical review letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "4",

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T1 - First Dark Matter Search Results from the LUX-ZEPLIN (LZ) Experiment

AU - (LUX-ZEPLIN Collaboration)

AU - Aalbers, J.

AU - Akerib, D. S.

AU - Akerlof, C. W.

AU - Al Musalhi, A. K.

AU - Alder, F.

AU - Alqahtani, A.

AU - Alsum, S. K.

AU - Amarasinghe, C. S.

AU - Ames, A.

AU - Anderson, T. J.

AU - Angelides, N.

AU - Araújo, H. M.

AU - Armstrong, J. E.

AU - Arthurs, M.

AU - Azadi, S.

AU - Bailey, A. J.

AU - Baker, A.

AU - Balajthy, J.

AU - Balashov, S.

AU - Bang, J.

AU - Bargemann, J. W.

AU - Barry, M. J.

AU - Barthel, J.

AU - Bauer, D.

AU - Baxter, A.

AU - Beattie, K.

AU - Belle, J.

AU - Beltrame, P.

AU - Bensinger, J.

AU - Benson, T.

AU - Bernard, E. P.

AU - Bhatti, A.

AU - Biekert, A.

AU - Biesiadzinski, T. P.

AU - Birch, H. J.

AU - Birrittella, B.

AU - Blockinger, G. M.

AU - Boast, K. E.

AU - Boxer, B.

AU - Bramante, R.

AU - Brew, C. A.J.

AU - Brás, P.

AU - Buckley, J. H.

AU - Bugaev, V. V.

AU - Burdin, S.

AU - Busenitz, J. K.

AU - Buuck, M.

AU - Cabrita, R.

AU - Carmona-Benitez, M. C.

AU - De Viveiros, L.

PY - 2023/7/28

Y1 - 2023/7/28

N2 - The LUX-ZEPLIN experiment is a dark matter detector centered on a dual-phase xenon time projection chamber operating at the Sanford Underground Research Facility in Lead, South Dakota, USA. This Letter reports results from LUX-ZEPLIN's first search for weakly interacting massive particles (WIMPs) with an exposure of 60 live days using a fiducial mass of 5.5 t. A profile-likelihood ratio analysis shows the data to be consistent with a background-only hypothesis, setting new limits on spin-independent WIMP-nucleon, spin-dependent WIMP-neutron, and spin-dependent WIMP-proton cross sections for WIMP masses above 9 GeV/c2. The most stringent limit is set for spin-independent scattering at 36 GeV/c2, rejecting cross sections above 9.2×10-48 cm at the 90% confidence level.

AB - The LUX-ZEPLIN experiment is a dark matter detector centered on a dual-phase xenon time projection chamber operating at the Sanford Underground Research Facility in Lead, South Dakota, USA. This Letter reports results from LUX-ZEPLIN's first search for weakly interacting massive particles (WIMPs) with an exposure of 60 live days using a fiducial mass of 5.5 t. A profile-likelihood ratio analysis shows the data to be consistent with a background-only hypothesis, setting new limits on spin-independent WIMP-nucleon, spin-dependent WIMP-neutron, and spin-dependent WIMP-proton cross sections for WIMP masses above 9 GeV/c2. The most stringent limit is set for spin-independent scattering at 36 GeV/c2, rejecting cross sections above 9.2×10-48 cm at the 90% confidence level.

UR - https://www.scopus.com/pages/publications/85166733827

UR - https://www.scopus.com/pages/publications/85166733827#tab=citedBy

U2 - 10.1103/PhysRevLett.131.041002

DO - 10.1103/PhysRevLett.131.041002

M3 - Article

C2 - 37566836

AN - SCOPUS:85166733827

SN - 0031-9007

VL - 131

JO - Physical review letters

JF - Physical review letters

IS - 4

M1 - 041002

ER -

First Dark Matter Search Results from the LUX-ZEPLIN (LZ) Experiment

Abstract

All Science Journal Classification (ASJC) codes

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