skip to main content
US FlagAn official website of the United States government
dot gov icon
Official websites use .gov
A .gov website belongs to an official government organization in the United States.
https lock icon
Secure .gov websites use HTTPS
A lock ( lock ) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

Explore Research Products in the PAR
It may take a few hours for recently added research products to appear in PAR search results.


  • Home
  • Search Results
  • Page 1 of 3

Search for: All records

Creators/Authors contains: "Sadoulet, B"

Note: When clicking on a Digital Object Identifier (DOI) number, you will be taken to an external site maintained by the publisher. Some full text articles may not yet be available without a charge during the embargo (administrative interval).
What is a DOI Number?

Some links on this page may take you to non-federal websites. Their policies may differ from this site.

  1. ; ; ; ; ; ; ; ; ; ; et al (, Physical Review Letters)
    We present results of a search for spin-independent dark matter-nucleus interactions in a 1     cm 2 by 1 mm thick (0.233 g) high-resolution silicon athermal phonon detector operated above ground. For interactions in the substrate, this detector achieves an rms baseline energy resolution of 361.5 ( 4 )     m eV (statistical error), the best for any athermal phonon detector to date. With an exposure of 0.233     g × 12 hours, we place the most stringent constraints on dark matter masses between 44 and 87     M eV / c 2 , with the lowest unexplored cross section of 4 × 10 − 32     c m 2 at 87     M eV / 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. 
    more » « less
    Free, publicly-accessible full text available October 1, 2026
  2. ; ; ; ; ; ; ; ; ; ; et al (, Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment)
    Full Text Available 
  3. ; ; ; ; ; ; ; ; ; ; et al (, Physical Review D)
    This article presents constraints on dark-matter-electron interactions obtained from the first underground data-taking campaign with multiple SuperCDMS HVeV detectors operated in the same housing. An exposure of 7.63     g − days is used to set upper limits on the dark-matter-electron scattering cross section for dark matter masses between 0.5 and 1000     MeV / c 2 , as well as upper limits on dark photon kinetic mixing and axionlike particle axioelectric coupling for masses between 1.2 and 23.3     eV / c 2 . Compared to an earlier HVeV search, sensitivity was improved as a result of an increased overburden of 225 meters of water equivalent, an anticoincidence event selection, and better pile-up rejection. In the case of dark-matter-electron scattering via a heavy mediator, an improvement by up to a factor of 25 in cross section sensitivity was achieved. Published by the American Physical Society2025 
    more » « less
    Free, publicly-accessible full text available January 1, 2026
  4. ; ; ; ; ; ; ; ; ; ; et al (, Applied Physics Letters)
    We present the design and characterization of a large-area Cryogenic PhotoDetector designed for active particle identification in rare event searches, such as neutrinoless double beta decay and dark matter experiments. The detector consists of a 45.6 cm2 surface area by a 1-mm-thick 10.6 g Si wafer. It is instrumented with a distributed network of Quasiparticle-trap-assisted Electrothermal feedback Transition-edge sensors with superconducting critical temperature Tc=41.5 mK to measure athermal phonons released from interactions with photons. The detector is characterized and calibrated with a collimated 55Fe x-ray source incident on the center of the detector. The noise equivalent power is measured to be 1×10−17 W/Hz in a bandwidth of 2.7 kHz. The baseline energy resolution is measured to be σE=3.86±0.04 (stat.)−0.00+0.19 (syst.) eV. The detector also has an expected timing resolution of σt=2.3 μs for 5 σE events. 
    more » « less
  5. ; ; ; ; ; ; ; ; ; ; et al (, AIP Advances)
    In this letter, we present the performance of a 100 μm × 400 μm × 40 nm W Transition-Edge Sensor with a critical temperature of 40 mK. This device has a noise equivalent power of 1.5×10-18 W/Hz, in a bandwidth of 2.6 kHz, indicating a resolution for Dirac delta energy depositions of 40 ± 5 meV (rms). The performance demonstrated by this device is a critical step toward developing a O(100) meV threshold athermal phonon detector for low-mass dark matter searches. 
    more » « less
  6. ; ; ; ; ; ; ; ; ; ; et al (, Physical Review Letters)
  7. ; ; ; ; ; ; ; ; ; ; et al (, Physical Review D)
    Full Text Available 
  8. ; ; ; ; ; ; ; ; ; ; et al (, Physical Review D)
    Full Text Available 
  9. ; ; ; ; ; ; ; ; ; ; et al (, Physical Review D)
    Full Text Available 
  10. ; ; ; ; ; ; ; ; ; ; et al (, Physical Review Letters)
    Full Text Available