Any Light Particle Searches with ALPS II: first science results
The light-shining-through-a-wall experiment ALPS II at DESY in Hamburg searched for axions and similar lightweight particles in its first science campaign from February to May 2024. No evidence for the existence of such particles was found. For pseudoscalar bosons like the axion, with masses below about 0.1 meV, we achieved a limit for the di-photon coupling strength of 1.5e-9 1/GeV at a 95% confidence level. This is more than a factor of 20 improvement compared to all previous similar experiments. We also provide limits on photon interactions for scalar, vector and tensor bosons. An achievement of this first science campaign is the demonstration of stable operation and robust calibration of the complex experiment. Currently, the optical system of ALPS II is being upgraded aiming for another two orders of magnitude sensitivity increase.
Authors
- D. B. Tanner (ORCID: https://orcid.org/0000-0003-1940-4710)
- Axel Lindner (ORCID: https://orcid.org/0000-0002-8201-788X)
- T. Kozłowski (ORCID: https://orcid.org/0000-0003-4790-4296)
- J. Schaffran (ORCID: https://orcid.org/0000-0003-4863-1496)
- L.‐W. Wei (ORCID: https://orcid.org/0000-0001-8210-2024)
- Christina Schwemmbauer (ORCID: https://orcid.org/0000-0002-2029-1162)
- D. Trines (ORCID: https://orcid.org/0000-0002-8569-1335)
- J. Pöld (ORCID: https://orcid.org/0000-0002-1863-9625)
- Aaron Spector (ORCID: https://orcid.org/0000-0002-6575-8192)
- J. Egge (ORCID: https://orcid.org/0000-0003-2852-3447)
- S. Karstensen
- D. Reuther
- Kanioar Karan
- G. Othman
- A. Ejlli (ORCID: https://orcid.org/0000-0002-4149-4532)
- Harold Hollis (ORCID: https://orcid.org/0000-0001-5176-8341)
- Katharina-Sophie Isleif
- B. Willke (ORCID: https://orcid.org/0000-0003-0524-2925)
- Josè Alejandro Rubiera Gimeno (ORCID: https://orcid.org/0000-0002-4012-9509)
- F. Januschek
- Elmeri Rivasto (ORCID: https://orcid.org/0000-0002-1255-0726)
- M. T. Hartman (ORCID: https://orcid.org/0000-0002-6046-1402)
- J. K. Gleason
- Ayman Hallal (ORCID: https://orcid.org/0000-0002-9301-000X)
- M. Meyer (ORCID: https://orcid.org/0000-0002-0738-7581)
- Sandy Croatto
- U. Schneekloth
- G. A. Müller
- Daniel C. Brotherton
- H. Grote
- A. Ringwald
- R. Wolf
- Henry Frädrich
Publication Details
- Journal
- arXiv (Cornell University)
- Published
- 2025-01-01
- DOI
- https://doi.org/10.3204/pubdb-2025-05630
- Primary Topic
- Dark Matter and Cosmic Phenomena
- Type
- article
- Field-Weighted Citation Impact
- 0.00
Funders
- National Science Foundation
- European Commission
- Deutsche Forschungsgemeinschaft
- Science and Technology Facilities Council
- Deutsches Elektronen-Synchrotron