20th Patras Workshop on Axions, WIMPs and WISPs

Session

Morning - 8

25 Sept 2025, 11:00

90. Latest results from the LUX-ZEPLIN (LZ) dark matter experiment

Dr Emily Perry (LBNL)

25/09/2025, 11:00

For the past two decades, dual-phase xenon time projection chambers (TPCs) have dominated the search for Weakly Interacting Massive Particles (WIMPs). Their scalability and advanced technology also grant them world-leading sensitivity to other Beyond Standard Model (BSM) physics and rare or exotic neutrino phenomena. The LUX-ZEPLIN (LZ) experiment, utilizing a 7-tonne liquid xenon target, is...

47. The ALPS II Optical System

Henry Frädrich (DESY)

25/09/2025, 11:20

The Any Light Particle Search II (ALPS II) is a 'light-shining-through-a-wall' experiment currently running at DESY in Hamburg, Germany, searching for axions and axion-like particles. 'light-shining-through-a-wall' experiments use a strong laser to shine light through a strong magnetic field to convert a fraction of the light into axions. The unconverted light is blocked by a wall while the...

45. WISP searches on a fiber interferometer under a strong magnetic field (WISPFI)

Josep Maria Batllori Berenguer

25/09/2025, 11:26

WISPFI (WISP Searches on a Fiber Interferometer) is a novel table-top experiment designed to detect photon-axion conversion using resonant mixing. The experiment employs hollow-core photonic crystal fibers (HC-PCF) to fulfill the resonant condition, which can be precisely tuned by adjusting the gas pressure within the fiber. This technique enables the probing of an unexplored axion mass range...

72. The Canfranc Axion Detection Experiment (CADEx): a novel haloscope search for Dark Matter axions in the mass range 330–460 μeV

Bradley Kavanagh

25/09/2025, 11:32

A range of haloscope searches are currently probing axions in the mass range ~2-40 μeV. However, simulations of the axion field in the early Universe are increasingly pointing towards heavier masses if we want the axion to comprise all of the Dark Matter in the Universe. I will briefly review these developments and then I will present The Canfranc Axion Detection Experiment (CADEx), a proposed...

62. A Dark Photon Dark Matter Search with a Widely-Tunable SRF Cavity

Raphael Cervantes

25/09/2025, 11:52

The SERAPH (SupERconducting Axion and Paraphoton Haloscope) experiment is a family of superconducting haloscopes being developed by the Superconducting Quantum Materials and Systems (SQMS) Center to search for wavelike dark matter. This presentation will focus on preliminary results from our dark photon dark matter search using a widely-tunable SRF cavity operating between 4-7 GHz, nicknamed...

95. Fine-grained dark matter substructure and axion haloscopes

Giovanni Pierobon

25/09/2025, 12:12

The small-scale distribution of dark matter is expected to
feature fine-grained substructure on solar-system scales, arising from
the gravitational folding of an initially smooth phase-space sheet into
many overlapping streams. For axions—especially in the post-inflationary
scenario—early-Universe clustering can further amplify these densities.
While such substructure is typically...

42. Grenoble Axion Haloscope (GrAHal) projects in collaboration with DMAG/IBS for Axion Dark Matter Search

Pierre Pugnat (LNCMI-Grenoble, CNRS & Université Grenoble-Alpes)

25/09/2025, 12:32

A collaboration between three main laboratories of CNRS, Université Grenoble-Alpes and DMAG/IBS in South Korea (ex-CAPP) is bringing together key expertises to build and operate several haloscopes for axion dark matter searches with unprecedented sensitivity. Based on existing infrastructures at Grenoble like the 9 T/43 T modular hybrid magnet of LNCMI recently put in operation up to 8.5 T/42...

55. Machine Learning–Enabled Searches for Axions and Gravitational Waves with DMRadio-50L and ABRACADABRA

Jessica Fry (MIT)

25/09/2025, 12:52

The DMRadio program is developing a suite of experiments to probe QCD axions in the sub-1 μeV mass range, a theoretically motivated regime with implications for grand unified theories and pre-inflationary cosmology. The first of these, DMRadio-50L, is undergoing commissioning and targets axion masses from 5 kHz to 5 MHz. Accessing this low-mass QCD axion regime poses unique experimental...