CERN Accelerating science

Article
Report number arXiv:2211.02902
Title Search for dark matter axions with CAST-CAPP
Author(s) Adair, C.M. (British Columbia U.) ; Altenmüller, K. (Zaragoza U.) ; Anastassopoulos, V. (Patras U.) ; Cuendis, S. Arguedas (CERN) ; Baier, J. (Freiburg U.) ; Barth, K. (CERN) ; Belov, A. (Moscow, INR) ; Bozicevic, D. (Rijeka U.) ; Bräuninger, H. (Garching, Max Planck Inst., MPE) ; Cantatore, G. (INFN, Trieste ; Trieste U.) Visa alla 64 författare
Publication 2022-10-19
Imprint 2022-11-05
Number of pages 9
Note 24 pages, 5 figures, Published version available with Open Access at https://www.nature.com/articles/s41467-022-33913-6
In: Nature Commun. 13 (2022) 6180
DOI 10.1038/s41467-022-33913-6
Subject category Particle Physics - Experiment
Accelerator/Facility, Experiment CAST
Abstract The CAST-CAPP axion haloscope, operating at CERN inside the CAST dipole magnet, has searched for axions in the 19.74 μeV to 22.47 μeV mass range. The detection concept follows the Sikivie haloscope principle, where Dark Matter axions convert into photons within a resonator immersed in a magnetic field. The CAST-CAPP resonator is an array of four individual rectangular cavities inserted in a strong dipole magnet, phase-matched to maximize the detection sensitivity. Here we report on the data acquired for 4124 h from 2019 to 2021. Each cavity is equipped with a fast frequency tuning mechanism of 10 MHz/min between 4.774 GHz and 5.434 GHz. In the present work, we exclude axion-photon couplings for virialized galactic axions down to gaγγ=8×1014GeV1 at the 90% confidence level. The here implemented phase-matching technique also allows for future large-scale upgrades.
Copyright/License © 2022-2024 The Author(s) (License: CC-BY-4.0)



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 Journalen skapades 2022-10-20, och modifierades senast 2024-09-11


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