activity
20222026
most citedA new upper limit on the axion-photon coupling with an extended CAST run with a Xe-based Micromegas detector

56 citations · 94 across the 9 of their papers we have counts for

collaborators

10 papers

physics.ins-det2026

Improvement and assessment of the radiopurity of Micromegas readout planes

Juan Castel, Susana Cebrian, Theopisti Dafni +17

Micromesh Gas Structures (Micromegas) as readout of gaseous Time Projection Chambers (TPCs) are being considered in experiments investigating rare phenomena, like the nuclear doubl…

physics.ins-det2025

Low-energy threshold demonstration for dark matter searches in TREX-DM with an Ar source produced at CNA HiSPANoS

J. Castel, S. Cebrián, T. Dafni +16

We report on the successful implementation of an Ar calibration source in the TREX-DM detector, a high-pressure time projection chamber designed for low-mass dark matter sea…

hep-ex2025

Search for solar axions produced through the axion-electron coupling using a new GridPix detector at CAST

K. Altenmüller, V. Anastassopoulos, S. Arguedas-Cuendis +61

We present a search for solar axions produced through the axion-electron coupling using data from a novel 7-GridPix detector installed at the CERN Axion Solar Telescope…

hep-ph2025

The International Axion Observatory (IAXO): case, status and plans. Input to the European Strategy for Particle Physics

A. Arcusa, S. Ahyoune, K. Altenmuller +120

The International Axion Observatory (IAXO) is a next-generation axion helioscope designed to search for solar axions with unprecedented sensitivity. IAXO holds a unique position in…

hep-ex2025

Efficient cosmic ray generator for particle detector simulations

David Díez Ibáñez, Luis Obis Aparicio

Traditional cosmic ray simulations make use of the Montecarlo method in a very naive way to randomise energy and direction for each simulated particle. The flux of cosmic rays is m…

hep-ex2024

An accurate solar axions ray-tracing response of BabyIAXO

S. Ahyoune, K. Altenmueller, I. Antolin +124

BabyIAXO is the intermediate stage of the International Axion Observatory (IAXO) to be hosted at DESY. Its primary goal is the detection of solar axions following the axion heliosc…

hep-ex2024★ 56 cited

A new upper limit on the axion-photon coupling with an extended CAST run with a Xe-based Micromegas detector

CAST Collaboration, K. Altenmüller, V. Anastassopoulos +62

Hypothetical axions provide a compelling explanation for dark matter and could be emitted from the hot solar interior. The CERN Axion Solar Telescope (CAST) has been searching for…

physics.ins-det2023★ 28 cited

A proposal for a low-frequency axion search in the 1-2 eV range and below with the BabyIAXO magnet

S. Ahyoune, A. Álvarez Melcón, S. Arguedas Cuendis +27

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 magneti…

physics.ins-det2022★ 7 cited

Purification Efficiency and Radon Emanation of Gas Purifiers used with Pure and Binary Gas Mixtures for Gaseous Dark Matter Detectors

K., Altenmüller, J. F. Castel +22

Rare event searches require extreme radiopurity in all detector components. This includes the active medium, which in the case of gaseous detectors, is the operating gas. The gases…

physics.ins-det2022★ 3 cited

AlphaCAMM, a Micromegas-based camera for high-sensitivity screening of alpha surface contamination

Konrad Altenmüller, Juan F. Castel, Susana Cebrián +12

Surface contamination of Rn progeny from the U natural decay chain is one of the most difficult background contributions to measure in rare event searches experimen…