A5051256140- Dark Matter and Cosmic Phenomena
- Atomic and Subatomic Physics Research
- Particle physics theoretical and experimental studies
- Superconducting and THz Device Technology
- Astrophysics and Cosmic Phenomena
- Particle Detector Development and Performance
- Social Sciences and Policies
- Educational Technology in Learning
- Aging, Health, and Disability
- Inclusive Education and Diversity
- Physics of Superconductivity and Magnetism
- Strong Light-Matter Interactions
- E-Learning and Knowledge Management
- Pulsars and Gravitational Waves Research
- Radio Astronomy Observations and Technology
- Cosmology and Gravitation Theories
- Geophysics and Gravity Measurements
- Higher Education Teaching and Evaluation
- Cardiac pacing and defibrillation studies
- Libraries, Manuscripts, and Books
- Metamaterials and Metasurfaces Applications
- Mechanical Circulatory Support Devices
- Human Rights and Immigration
- Latin American Urban Studies
- Nursing care and research
Universidad Politécnica de Cartagena
2018-2024
Max Planck Institute for Physics
2018
Max Planck Society
2018
A bstract We present results of the Relic Axion Dark-Matter Exploratory Setup (RADES), a detector which is part CERN Solar Telescope (CAST), searching for axion dark matter in 34.67 μ eV mass range. radio frequency cavity consisting 5 sub-cavities coupled by inductive irises took physics data inside CAST dipole magnet first time using this filter-like haloscope geometry. An exclusion limit with 95% credibility level on axion-photon coupling constant g aγ ≳ 4 × 10 − 13 GeV 1 over range 34 ....
The direct detection of gravitational waves (GWs) frequencies above MHz has recently received considerable attention. In this work, we present a precise study the reach cubic cavity resonator to GWs in microwave range, using for first time tools allowing perform realistic simulations. Concretely, boundary integral—resonant mode expansion (BI-RME) 3D method, which allows us obtain not only detected power but also voltage (magnitude and phase), is used here. After analyzing three cavities...
We propose, design and construct a variant of the conventional axion haloscope concept that could be competitive in search for dark matter axions masses decade 10–100 μeV. Theses are located somewhat above mass range which existing experiments have reached sensitivity to benchmark QCD models. Our consists an array small microwave cavities connected by rectangular irises, arrangement commonly used radio-frequency filters. The size unit cavity determines main resonant frequency, while...
A bstract RADES (Relic Axion Detector Exploratory Setup) is a project with the goal of directly searching for axion dark matter above 30 μ eV scale employing custom-made microwave filters in magnetic dipole fields. Currently taking data at LHC CAST experiment. In long term, cavities are envisioned to take BabyIAXO magnet. this article we report on modelling, building and characterisation an optimised microwave-filter design alternating irises that exploits maximal coupling axions while being...
Abstract In the near future BabyIAXO will be most powerful axion helioscope, relying on a custom‐made magnet of two bores 70 cm diameter and 10 m long, with total available magnetic volume more than 7 3 . this document, it proposes describe implementation low‐frequency haloscope setups suitable for operation inside magnet. The RADES proposal has potential sensitivity to axion‐photon coupling down values corresponding KSVZ model, in (currently unexplored) mass range between 1 2 eV, after...
The axion is a hypothetical particle which candidate for cold dark matter. Haloscope experiments directly search these particles in strong magnetic fields with RF cavities as detectors. Relic Axion Detector Exploratory Setup (RADES) at CERN particular searching matter mass range above 30 <inline-formula xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"><tex-math notation="LaTeX">$\mu$</tex-math></inline-formula> eV. figure of merit our detector depends...
Hypothetical axions provide a compelling explanation for dark matter and could be emitted from the hot solar interior. The CERN Axion Solar Telescope has been searching via their back conversion to x-ray photons in 9-T 10-m long magnet directed toward Sun. We report on an extended run with International Observatory pathfinder detector, doubling previous exposure time. detector was operated xenon-based gas mixture part of new run, providing technical insights future configurations. No counts...
Tuning is an essential requirement for the search of dark matter axions employing haloscopes since its mass not known yet to scientific community. At present day, most haloscope tuning systems are based on mechanical devices which can lead failures due complexity environment in they used. However, electronic making use ferroelectric materials provide a path that less vulnerable and thus complements expands current systems. In this work, we design novel technique using Potassium Tantalate...
A bstract Haloscopes are resonant cavities that serve as detectors of dark matter axions when they immersed in a strong static magnetic field. In order to increase the volume and improve space compatibility with dipole or solenoid magnets for axion searches, various haloscope design techniques rectangular geometries discussed this study. The limits two types haloscopes explored: those based on single multicavities. both cases, possibilities increasing long and/or tall structures presented....
In the near future BabyIAXO will be most powerful axion helioscope, relying on a custom-made magnet of two bores 70 cm diameter and 10 m long, with total available magnetic volume more than 7 m$^3$. this document, we propose describe implementation low-frequency haloscope setups suitable for operation inside magnet. The RADES proposal has potential sensitivity to axion-photon coupling $g_{aγ}$ down values corresponding KSVZ model, in (currently unexplored) mass range between 1 2$~μ$eV, after...
We describe the results of a haloscope axion search performed with an 11.7 T dipole magnet at CERN. The used custom-made radio-frequency cavity coated high-temperature superconducting tape. A set 27 h data resonant frequency around 8.84 GHz was analysed. In range mass 36.5676 $\mu$eV to 36.5699 $\mu$eV, corresponding width 554 kHz, no signal excess hinting axion-like particle found. Correspondingly, in this range, limit on photon coupling-strength between g$_{a\gamma}\gtrsim$ 6.2e-13...
RADES (Relic Axion Detector Exploratory Setup) is a project with the goal of directly searching for axion dark matter above $30 μ$eV scale employing custom-made microwave filters in magnetic dipole fields. Currently taking data at LHC CAST experiment. In long term, cavities are envisioned to take (baby)-IAXO magnet. this article we report on modelling, building and characterisation an optimised microwave-filter design alternating irises that exploits maximal coupling axions while being...
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 rigorous analysis of excitation an axion field. In this scenario, field generated by can be assumed to driven equivalent electrical charge and current densities. These densities have inserted general BI-RME equations, which express RF existing within as integral involving Dyadic Green...
Haloscopes are resonant cavities that serve as detectors of dark matter axions when they immersed in a strong static magnetic field. In order to increase the volume and improve its introduction within dipole or solenoid magnets for axion searches, various haloscope design techniques rectangular geometries discussed this study. The limits two types haloscopes explored: based on single multicavities. For both cases, possibilities increasing long and/or tall structures presented. multicavities,...
The direct detection of gravitational waves (GWs) frequencies above MHz has recently received considerable attention. In this work we present a precise study the reach cubic cavity resonator to GWs in microwave range, using for first time tools allowing perform realistic simulations. Concretely, BI-RME 3D method, which allows obtain not only detected power but also voltage (magnitude and phase), is used here. After analyzing three cavities different working simultaneously with degenerate...