Search for galactic axions with a traveling wave parametric amplifier
R. Di Vora, A. Lombardi, A. Ortolan, R. Pengo, G. Ruoso, C. Braggio,, G. Carugno, L. Taffarello, G. Cappelli, N. Crescini, M. Esposito, L. Planat,, A. Ranadive, N. Roch, D. Alesini, D. Babusci, A. D'Elia, D. Di Gioacchino, C., Gatti, C. Ligi, G. Maccarrone, A. Rettaroli
TL;DR
This paper reports on the integration of a traveling wave parametric amplifier into a haloscope for axion dark matter search, achieving high sensitivity at GHz frequencies with a dielectric cavity in a strong magnetic field.
Contribution
It introduces the use of a traveling wave parametric amplifier in a haloscope setup for axion detection, enhancing sensitivity and frequency scanning capabilities.
Findings
Achieved sensitivity at the level of viable axion models.
Successfully integrated a traveling wave parametric amplifier into the haloscope.
Conducted frequency scans with high sensitivity at multiple frequencies.
Abstract
A traveling wave parametric amplifier has been integrated in the haloscope of the QUAX experiment. A search for dark matter axions has been performed with a high Q dielectric cavity immersed in a 8 T magnetic field and read by a detection chain having a system noise temperature of about 2.1 K at the frequency of 10.353 GHz. Scanning has been conducted by varying the cavity frequency using sapphire rods immersed into the cavity. At multiple operating frequencies, the sensitivity of the instrument was at the level of viable axion models.
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Taxonomy
TopicsDark Matter and Cosmic Phenomena · Computational Physics and Python Applications · Scientific Research and Discoveries