Готові списки джерел за темами / Axion haloscope high-Q cavity axion search dielectric cavity dark matter

Добірка наукової літератури з теми "Axion haloscope high-Q cavity axion search dielectric cavity dark matter"

Автор: Grafiati

Опубліковано: 14 березня 2023

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Статті в журналах з теми "Axion haloscope high-Q cavity axion search dielectric cavity dark matter"

Chaudhuri, Saptarshi. "Impedance matching to axion dark matter: considerations of the photon-electron interaction." Journal of Cosmology and Astroparticle Physics 2021, no. 12 (December 1, 2021): 033. http://dx.doi.org/10.1088/1475-7516/2021/12/033.

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Abstract We introduce the concept of impedance matching to axion dark matter by posing the question of why axion detection is difficult, even though there is enough power in each square meter of incident dark-matter flux to energize a LED light bulb. By quantifying backreaction on the axion field, we show that a small axion-photon coupling does not by itself prevent an order-unity fraction of the dark matter from being absorbed through optimal impedance match. We further show, in contrast, that the electromagnetic charges and the self-impedance of their coupling to photons provide the principal constraint on power absorption integrated across a search band. Using the equations of axion electrodynamics, we demonstrate stringent limitations on absorbed power in linear, time-invariant, passive receivers. Our results yield fundamental constraints, arising from the photon-electron interaction, on improving integrated power absorption beyond the cavity haloscope technique. The analysis also has significant practical implications, showing apparent tension with the sensitivity projections for a number of planned axion searches. We additionally provide a basis for more accurate signal power calculations and calibration models, especially for receivers using multi-wavelength open configurations such as dish antennas and dielectric haloscopes.

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Braggio, Caterina, Giulio Cappelli, Giovanni Carugno, Nicolò Crescini, Raffaele Di Vora, Martina Esposito, Antonello Ortolan, et al. "A haloscope amplification chain based on a traveling wave parametric amplifier." Review of Scientific Instruments 93, no. 9 (September 1, 2022): 094701. http://dx.doi.org/10.1063/5.0098039.

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In this paper, we will describe the characterization of an RF amplification chain based on a traveling wave parametric amplifier. The detection chain is meant to be used for dark matter axion searches, and thus, it is coupled to a high Q microwave resonant cavity. A system noise temperature Tsys = (3.3 ± 0.1) K is measured at a frequency of 10.77 GHz, using a novel calibration scheme, allowing for measurement of Tsys exactly at the cavity output port.

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Aja, Beatriz, Sergio Arguedas Cuendis, Ivan Arregui, Eduardo Artal, R. Belén Barreiro, Francisco J. Casas, Marina C. de Ory, et al. "The Canfranc Axion Detection Experiment (CADEx): search for axions at 90 GHz with Kinetic Inductance Detectors." Journal of Cosmology and Astroparticle Physics 2022, no. 11 (November 1, 2022): 044. http://dx.doi.org/10.1088/1475-7516/2022/11/044.

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Abstract We propose a novel experiment, the Canfranc Axion Detection Experiment (CADEx), to probe dark matter axions with masses in the range 330–460 μeV, within the W-band (80–110 GHz), an unexplored parameter space in the well-motivated dark matter window of Quantum ChromoDynamics (QCD) axions. The experimental design consists of a microwave resonant cavity haloscope in a high static magnetic field coupled to a highly sensitive detecting system based on Kinetic Inductance Detectors via optimized quasi-optics (horns and mirrors). The experiment is in preparation and will be installed in the dilution refrigerator of the Canfranc Underground Laboratory. Sensitivity forecasts for axion detection with CADEx, together with the potential of the experiment to search for dark photons, are presented.

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BIBBER, K. VAN, W. STÖFFL, P. L. ANTHONY, P. SIKIVIE, N. S. SULLIVAN, D. B. TANNER, V. ŽELEZNÝ, et al. "A NEXT-GENERATION CAVITY MICROWAVE EXPERIMENT TO SEARCH FOR DARK-MATTER AXIONS." International Journal of Modern Physics D 03, supp01 (January 1994): 33–42. http://dx.doi.org/10.1142/s0218271894000939.

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We propose a large-scale experimental search for dark-matter axions which may constitute an important fraction of our own galactic halo. As shown by Sikivie,1 dark-matter axions may be detected by their stimulated conversion into monochromatic microwave photons in a tunable high-Q cavity inside a strong magnetic field. The principal improvement in power sensitivity over two earlier pilot experiments (×25) derives from the large-volume high field superconducting magnet (the NASA SUMMA coils). The improvement in mass range (1.5 to 12.6 μeV) will result from the use of several microwave cavity arrays, of 2n cavities each, over the course of the experimental program, rather than a single cavity. We are participating in a joint venture with the Institute for Nuclear Research of the Russian Academy of Sciences to do R&D on metalized precision-formed ceramic microwave cavities for the axion search.

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Jeong, Junu, SungWoo YOUN, Sungjae Bae, Dongok Kim, Younggeun Kim, and Yannis K. Semertzidis. "Analytical considerations for optimal axion haloscope design." Journal of Physics G: Nuclear and Particle Physics, February 25, 2022. http://dx.doi.org/10.1088/1361-6471/ac58b4.

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Abstract The cavity haloscope provides a highly sensitive method to search for dark matter axions in the microwave regime. Experimental attempts to enhance the sensitivity have focused on improving major aspects, such as producing strong magnetic fields, increasing cavity quality factors, and achieving lowest possible noise temperatures. Minor details, however, also need to be carefully considered in realistic experimental designs. They are associated with non-uniform magnetic fields over the detection volume, noise propagation under attenuation and temperature gradients, and thermal disequilibrium in the cavity system. We take analytical approaches to these topics and offer optimal treatments for improved performance.

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Álvarez Melcón, A., S. Arguedas Cuendis, J. Baier, K. Barth, H. Bräuninger, S. Calatroni, G. Cantatore та ін. "First results of the CAST-RADES haloscope search for axions at 34.67 μeV". Journal of High Energy Physics 2021, № 10 (жовтень 2021). http://dx.doi.org/10.1007/jhep10(2021)075.

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Abstract We present results of the Relic Axion Dark-Matter Exploratory Setup (RADES), a detector which is part of the CERN Axion Solar Telescope (CAST), searching for axion dark matter in the 34.67 μeV mass range. A radio frequency cavity consisting of 5 sub-cavities coupled by inductive irises took physics data inside the CAST dipole magnet for the first time using this filter-like haloscope geometry. An exclusion limit with a 95% credibility level on the axion-photon coupling constant of gaγ ≳ 4 × 10−13 GeV−1 over a mass range of 34.6738 μeV < ma< 34.6771 μeV is set. This constitutes a significant improvement over the current strongest limit set by CAST at this mass and is at the same time one of the most sensitive direct searches for an axion dark matter candidate above the mass of 25 μeV. The results also demonstrate the feasibility of exploring a wider mass range around the value probed by CAST-RADES in this work using similar coherent resonant cavities.

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Дисертації з теми "Axion haloscope high-Q cavity axion search dielectric cavity dark matter"

Di, Vora Raffaele. "High frequency Dark Matter axion search with very high-quality factor dielectric resonators in the QUAX-aγ experiment". Doctoral thesis, Università di Siena, 2022. http://hdl.handle.net/11365/1213654.

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The QCD axion has emerged in the last decade as a prominent candidate to the composition of the cold dark matter. The existence of an axion-photon coupling proportional to the magnetic field intensity has stimulated several experimental efforts towards its revelation, most based on the haloscope design introduced by P. Sikivie. The core component of this latter detector is a microwave cavity coupled to a receiver chain, allowing to exploit the coherence of the axion field to resonantly enhance and then amplify the converted signal. However, due to the scaling with frequency of parameters such as cavity volume and quality factor, this approach has diminishing returns moving towards high frequencies. In this dissertation, I detail the development process of a novel normo-conductive, dielectrically-loaded cavity resonating at 10.4\,GHz. Exploiting the $\mathbf{TM_{030}}$ resonant mode, it is capable of reaching quality factors of $\sim10^7$ under a 8\,T magnetic field, overcoming the axion quality factor for the first time in an axion search. I also present the setup, calibration, analysis procedure and the results obtained from the QUAX 2021 axion search run. A $90\%$ C.L. upper limit on the axion-photon coupling $g_{a\gamma\gamma}$ was set in the interval [10.35327;10.35354]\,GHz, with peak sensitivity of $g_{a\gamma\gamma}>5.6\times10^{-14}$ GeV$^{-1}$. Due to the very high receiver noise temperature of this setup, an improvement in sensitivity of a factor of 10 over the current result is expected in the near future thanks to the implementation of several improvements.

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Тези доповідей конференцій з теми "Axion haloscope high-Q cavity axion search dielectric cavity dark matter"

Kutlu, Caglar, Soohyung Lee, Sergey V. Uchaikin, Saebyeok Ahn, Sungjae Bae, Junu Jeong, Sungwoo Youn та ін. "Search for QCD axion dark matter around 24.5 μeV using an 8-cell microwave resonant cavity haloscope and a flux-driven Josephson parametric amplifier". У 41st International Conference on High Energy physics. Trieste, Italy: Sissa Medialab, 2022. http://dx.doi.org/10.22323/1.414.0092.

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