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RADES axion search results with a High-Temperature Superconducting cavity in an 11.7 T magnet
/ Ahyoune, S. (ICC, Barcelona U.) ; Álvarez Melcón, A. (Cartagena Politecnica U.) ; Cuendis, S. Arguedas (ICC, Barcelona U.) ; Calatroni, S. (CERN) ; Cogollos, C. (Garching, Max Planck Inst.) ; Díaz-Morcillo, A. (Cartagena Politecnica U.) ; Döbrich, B. (Garching, Max Planck Inst.) ; Gallego, J.D. (Yerkes Observ.) ; García-Barceló, J.M. (Garching, Max Planck Inst.) ; Gimeno, B. (Valencia U., IFIC) et al.
We describe the results of a haloscope axion search performed with an 11.7 T dipole magnet at CERN. [...]
arXiv:2403.07790 ; CERN-EP-2024-076 ; MPP-2024-55.
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2024. - 19 p.
Full text - Draft (restricted) - Fulltext
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A Proposal for a Low-Frequency Axion Search in the 1–2 μ$\umu$ eV Range and Below with the BabyIAXO Magnet
/ Ahyoune, Saiyd (ICC, Barcelona U.) ; Melcón, Alejandro Álvarez (Cartagena Politecnica U.) ; Cuendis, Sergio Arguedas (ICC, Barcelona U.) ; Calatroni, Sergio (CERN) ; Cogollos, Cristian (Munich, Max Planck Inst.) ; Devlin, Jack (Imperial Coll., London) ; Díaz-Morcillo, Alejandro (Cartagena Politecnica U.) ; Díez-Ibáñez, David (U. Zaragoza (main)) ; Döbrich, Babette (Munich, Max Planck Inst.) ; Galindo, Javier (U. Zaragoza (main)) et al.
In the near future BabyIAXO will be the most powerful axion helioscope, relying on a custom-made magnet of two bores of 70 cm diameter and 10 m long, with a total available magnetic volume of more than 7 m$^3$. In this document, we propose and describe the implementation of low-frequency axion haloscope setups suitable for operation inside the BabyIAXO magnet. [...]
arXiv:2306.17243.-
2023-12-01
- Published in : Ann. Phys. (Leipzig) 535 (2023) 2300326
Fulltext: document - PDF; 2306.17243 - PDF;
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Search for dark matter axions with CAST-CAPP
/ 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.) et al.
The CAST-CAPP axion haloscope, operating at CERN inside the CAST dipole magnet, has searched for axions in the 19.74 $\mu$eV to 22.47 $\mu$eV 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. [...]
arXiv:2211.02902.-
2022-10-19 - 9 p.
- Published in : Nature Commun. 13 (2022) 6180
Fulltext: 2211.02902 - PDF; s41467-022-33913-6 - PDF;
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Study on transient heat transfer at metal to dielectric interfaces in the temperature range between 3.5 K and 30 K
/ Koettig, T (CERN) ; Golm, J (CERN) ; Liberadzka, J (CERN) ; Borges de Sousa, P (CERN) ; Bremer, J (CERN)
The thermal conductivity and diffusivity across a combination of metallic and
insulating layers are important thermodynamic input parameters for cooling studies of composite
materials or assemblies built out of layers of different electrical and thermal conductivity. The
dynamic response of such thermal contacts across electrically insulating layers can be expressed
in terms of a diffusivity-like value, which is giving insight on the interface thermal resistance. [...]
2019 - 5 p.
- Published in : IOP Conf. Ser. Mater. Sci. Eng. 502 (2019) 012094
Fulltext: PDF;
In : 27th International Cryogenic Engineering Conference - International Cryogenic Materials Conference 2018, Oxford, United Kingdom, 3 - 7 Sep 2018, pp.012094
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Heat transfer at dielectric - metallic interfaces in the ultra-low temperature range
/ Liberadzka, J (CERN ; Twente U., Enschede) ; Golm, J (CERN) ; Koettig, T (CERN) ; Bremer, J (CERN) ; ter Brake, H J M (Twente U., Enschede)
In the framework of the AEgIS project a series of steady state and dynamic
heat transfer measurements at ultra-low temperatures was conducted in the Central Cryogenic
Laboratory at CERN. Two sandwich setups, simulating the behaviour of ultra-cold AEgIS
electrodes, were investigated and compared, namely: a sapphire − indium − copper and a
sapphire − titanium − gold − indium − copper sandwich. [...]
2019 - 5 p.
- Published in : IOP Conf. Ser. Mater. Sci. Eng. 502 (2019) 012133
Fulltext: PDF;
In : 27th International Cryogenic Engineering Conference - International Cryogenic Materials Conference 2018, Oxford, United Kingdom, 3 - 7 Sep 2018, pp.012133
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Design of New Resonant Haloscopes in the Search for the Dark Matter Axion: A Review of the First Steps in the RADES Collaboration
/ Díaz-Morcillo, Alejandro (Cartagena Politecnica U.) ; Barceló, José María García (Cartagena Politecnica U.) ; Guerrero, Antonio José Lozano (Cartagena Politecnica U.) ; Navarro, Pablo (Cartagena Politecnica U.) ; Gimeno, Benito (Valencia U., IFIC) ; Cuendis, Sergio Arguedas (CERN) ; Melcón, Alejandro Álvarez (Cartagena Politecnica U.) ; Cogollos, Cristian (Barcelona, IEEC) ; Calatroni, Sergio (CERN) ; Döbrich, Babette (CERN) et al.
Within the increasing interest in the dark matter axion detection through haloscopes, in which different international groups are currently involved, the RADES group was established in 2016 with the goal of developing very sensitive detection systems to be operated in dipole magnets. This review deals with the work developed by this collaboration during its first five years, from the first designs, based on the multi-cavity concept, aiming to increase the haloscope volume and, so, to improve its sensitivity, their evolution, the data acquisition design, and, finally, the first experimental run. [...]
arXiv:2111.14510.-
2021-12-23 - 24 p.
- Published in : Universe 8 (2021) 5
Fulltext: 2111.14510 - PDF; document - PDF;
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Thin Film (High Temperature) Superconducting Radiofrequency Cavities for the Search of Axion Dark Matter
/ Golm, J. (CERN) ; Arguedas Cuendis, S. (CERN) ; Calatroni, S. (CERN) ; Cogollos, C. (ICC, Barcelona U.) ; Döbrich, B. (CERN) ; Gallego, J.D. (Yebes Astron. Ctr.) ; García Barceló, J.M. (Cartagena Politecnica U.) ; Granados, X. (Barcelona, Autonoma U.) ; Gutierrez, J. (Barcelona, Autonoma U.) ; Irastorza, I.G. (Zaragoza U.) et al.
The axion is a hypothetical particle which is a candidate for cold dark matter. Haloscope experiments directly search for these particles in strong magnetic fields with RF cavities as detectors. [...]
arXiv:2110.01296.-
2022-06 - 5 p.
- Published in : IEEE Trans. Appl. Supercond. 32 (2022) 1500605
Fulltext: PDF;
In : 15th European Conference on Applied Superconductivity (EUCAS 2021), Online, 5 - 9 Sep 2021, pp.1500605
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Wide-band full-wave electromagnetic modal analysis of the coupling between dark-matter axions and photons in microwave resonators
/ Navarro, P. (Cartagena Politecnica U.) ; Gimeno, Benito (Valencia U., IFIC) ; Alvarez Melcon, A. (Cartagena Politecnica U.) ; Arguedas Cuendis, S. (CERN) ; Cogollos, C. (ICC, Barcelona U.) ; Diaz-Morcillo, A. (Cartagena Politecnica U.) ; Gallego, J.D. (Bonn, Max Planck Inst., Radioastron.) ; Garcia Barcelo, J.M. (Cartagena Politecnica U.) ; Golm, J. (CERN ; Jena U.) ; Irastorza, I.G. (Zaragoza U.) et al.
The electromagnetic coupling axion-photon in a microwave cavity is revisited with the Boundary Integral - Resonant Mode Expansion (BI-RME) 3D technique. Such full-wave modal technique has been applied for the rigorous analysis of the excitation of a microwave cavity with an axion field. [...]
arXiv:2107.03137.-
2022-06 - 37 p.
- Published in : Phys. Dark Univ. 36 (2022) 101001
Fulltext: Fulltext - PDF; 2107.03137 - PDF;
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