Aluminum relaxation as the source of excess low energy events in low threshold calorimeters
A previously unexplained background called the Low Energy Excess has negatively impacted the reach of a variety of low threshold calorimeters including light dark matter direct detection and coherent elastic neutrino-nucleus scattering experiments. The relaxation of stressed aluminum films as mediated by the motion of dislocations may account for these observations.
Authors
- R. K. Romani (ORCID: https://orcid.org/0000-0002-9556-1876)
Institutions
- University of California, Berkeley (US)
Publication Details
- Journal
- Journal of Applied Physics
- Published
- 2024-09-26
- DOI
- https://doi.org/10.1063/5.0222654
- Citations
- 9
- Primary Topic
- Superconducting and THz Device Technology
- Type
- article
- Field-Weighted Citation Impact
- 2.98
Funders
- U.S. Department of Energy
- Government of Canada
- Institut Périmètre de physique théorique
- Ministry of Colleges and Universities
- Lawrence Berkeley National Laboratory