First Limits on Light Dark Matter Interactions in a Low Threshold Two Channel Athermal Phonon Detector from the TESSERACT Collaboration

[2503.03683] First Limits on Light Dark Matter Interactions in a Low Threshold Two Channel Athermal Phonon Detector from the TESSERACT Collaboration Skip to main content Search Submit Donate Log in Search arXiv Press Enter to search · Advanced search High Energy Physics - Experiment arXiv:2503.03683 (hep-ex) [Submitted on 5 Mar 2025 ( v1 ), last revised 28 Mar 2025 (this version, v2)] Title: First Limits on Light Dark Matter Interactions in a Low Threshold Two Channel Athermal Phonon Detector from the TESSERACT Collaboration Authors: C.L. Chang , Y.-Y. Chang , L. Chaplinsky , C.W. Fink , M. Garcia-Sciveres , W. Guo , S.A. Hertel , X. Li , J. Lin , M. Lisovenko , R. Mahapatra , W. Matava , D.N. McKinsey , V. Novati , P.K. Patel , B. Penning , H.D. Pinckney , M. Platt , M. Pyle , Y. Qi , M. Reed , G.R.C Rischbieter , R.K. Romani , B. Sadoulet , B. Serfass , P. Sorensen , A. Suzuki , V. Velan , G. Wang , Y. Wang , S.L. Watkins , M.R. Williams , J.K. Wuko , T. Aramaki , P. Cushman , N.N. Gite , A. Gupta , M.E. Huber , N.A. Kurinsky , J.S. Mammo , B. von Krosigk , A.J. Mayer , J. Nelson , S.M. Oser , L. Pandey , A. Pradeep , W. Rau , T. Saab View a PDF of the paper titled First Limits on Light Dark Matter Interactions in a Low Threshold Two Channel Athermal Phonon Detector from the TESSERACT Collaboration, by C.L. Chang and 47 other authors View PDF HTML (experimental) Abstract: We present results of a search for spin-independent dark matter-nucleon interactions in a 1 cm$^2$ by 1 mm thick (0.233 gram) high-resolution silicon athermal phonon detector operated above ground. For interactions in the substrate, this detector achieves a r.m.s. baseline energy resolution of 361.5 $\pm$ 0.4 MeV/$c^2$, the best for any athermal phonon detector to date. With an exposure of 0.233g $\times$ 12 hours, we place the most stringent constraints on dark matter masses between 44 and 87 MeV/$c^2$, with the lowest unexplored cross section of 4 $\times 10^{-32}$ cm$^2$ at 87 MeV/$c^2$. We employ a conservative salting technique to reach the lowest dark matter mass ever probed via direct detection experiment. This constraint is enabled by two-channel rejection of low-energy backgrounds that are coupled to individual sensors. Comments: 8 total pages, 5 figures, 2 appendices Subjects: High Energy Physics - Experiment (hep-ex) ; Instrumentation and Detectors (physics.ins-det) Cite as: arXiv:2503.03683 [hep-ex] (or arXiv:2503.03683v2 [hep-ex] for this version) https://doi.org/10.48550/arXiv.2503.03683 Focus to learn more arXiv-issued DOI via DataCite Journal reference: Phys. Rev. Lett. 135, 161001 (2025) Related DOI : https://doi.org/10.1103/hsrl-crvf Focus to learn more DOI(s) linking to related resources Submission history From: Michael Williams [ view email ] [v1] Wed, 5 Mar 2025 17:22:53 UTC (10,888 KB) [v2] Fri, 28 Mar 2025 23:37:33 UTC (10,466 KB) Full-text links: Access Paper: View a PDF of the paper titled First Limits on Light Dark Matter Interactions in a Low Threshold Two Channel Athermal Phonon Detector from the TESSERACT Collaboration, by C.L. Chang and 47 other authors View PDF HTML (experimental) TeX Source view license Current browse context: hep-ex < prev | next > new | recent | 2025-03 Change to browse by: physics physics.ins-det References & Citations INSPIRE HEP NASA ADS Google Scholar Semantic Scholar export BibTeX citation Loading... BibTeX formatted citation × loading... 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