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Dark Matter Search Results from the PandaX-4T Commissioning Run

Yue Meng et al. (PandaX-4T Collaboration)
Phys. Rev. Lett. 127, 261802 – Published 23 December 2021
Physics logo See synopsis: Tightening the Net on Two Kinds of Dark Matter
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Abstract

We report the first dark matter search results using the commissioning data from PandaX-4T. Using a time projection chamber with 3.7 tonne of liquid xenon target and an exposure of 0.63tonne·year, 1058 candidate events are identified within an approximate nuclear recoil energy window between 5 and 100 keV. No significant excess over background is observed. Our data set a stringent limit to the dark matter–nucleon spin-independent interactions, with a lowest excluded cross section (90% C.L.) of 3.8×1047cm2 at a dark matter mass of 40GeV/c2.

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  • Received 3 August 2021
  • Accepted 18 November 2021

DOI:https://doi.org/10.1103/PhysRevLett.127.261802

Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. Funded by SCOAP3.

Published by the American Physical Society

Physics Subject Headings (PhySH)

Particles & FieldsNuclear Physics

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Tightening the Net on Two Kinds of Dark Matter

Published 23 December 2021

New dark matter results strengthen constraints on axions and WIMPs.

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Vol. 127, Iss. 26 — 24 December 2021

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