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Michael Tobar27/03/2025, 15:20Axions, Alps, Wisps as dark matterTalk
located at the University of Western Australia in Perth, Australia, the ORGAN (Oscillating Resonant Group AxioN) experiment is a microwave cavity axion haloscope that searches for axions in the 15–50 GHz mass range from the putative axion-photon coupling term g_agg , which began in 2017 [1]. The experiment has undergone several experimental runs, which will be detailed in this presentation...
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Cristina Martellini27/03/2025, 15:35Talk
The Belle II experiment has unique reach for a broad class of models that postulate the existence of dark matter particles with MeV—GeV masses. This talk presents recent world-leading physics results from Belle II searches for Z' bosons, axion-like particles, and dark scalars in association with two muons in e+e- collisions; long-lived (pseudo)scalars produced in decays of B-mesons; inelastic...
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Tsuguo Aramaki27/03/2025, 15:50Talk
GRAMS (Gamma-Ray and AntiMatter Survey), one of the NASA Physics of the Cosmos missions, is a balloon-borne experiment utilizing a LArTPC (Liquid Argon Time Projection Chamber) detector that is potentially expandable to a future satellite mission. GRAMS aims for both MeV gamma-ray observations and antimatter-based indirect dark matter searches. With a low-cost, large-scale LArTPC detector,...
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Erik Lentz (Pacific Northwest National Laboratory)27/03/2025, 16:05Talk
The Axion Dark Matter eXperiment (ADMX) is a direct-detection axion dark matter search operating as one of the Department of Energy (DOE) "Generation 2" dark matter projects. ADMX searches for dark matter axions in the micro-eV mass range using a large (V ~ 100L) high-Q (Q ~ 40,000) electromagnetic cavity threaded by a moderate intensity magnetic field (B ~ 8T) to resonantly convert local halo...
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Michael Jewell (Yale University)27/03/2025, 16:20Talk
The Haloscope At Yale Sensitive To Axion CDM (HAYSTAC) experiment is a microwave cavity search which is actively probing QCD axions with masses ≳$10\mu$eV. In this talk, I will present recent results from HAYSTAC's Phase II search for QCD axions between $16.96-19.46\mu$eV. These results are the widest search to date to achieve a quantum enhanced scan rate from a squeezed state reciever and...
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Junhui Liao27/03/2025, 16:35Talk
ALETHEIA, standing for A Liquid hElium Time projection cHambEr In dArk matter, is a newly established direct detection project aiming to search for low-mass DM with liquid helium-filled time projection chambers (TPCs). The project was officially launched in 2020 and has made significant progress since then. In this talk, I will mainly demonstrate that a single-phase liquid helium (LHe) TPC is...
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Dr Kaliroe Pappas (Columbia University)27/03/2025, 16:50Talk
ABRACADABRA-10cm has had great success as a lumped-element axion dark matter pathfinder experiment. Now, using the electrodynamics of gravitational waves and a simple change of pickup structures, we are using the ABRACADABRA detector to search for high-frequency gravitational wave in the kHz to MHz range. These higher frequencies may indicate signs of in-spiraling primordial black holes, or...
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Prof. Jaime Ruz Armendariz (TU Dortmund)27/03/2025, 17:05Talk
We present a novel approach to investigating axions and axion-like particles (ALPs) by studying their potential conversion into X-rays within the Sun’s atmospheric magnetic field. Utilizing high sensitivity data from the Nuclear Spectroscopic Telescope Array (NuSTAR) collected during the
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2020 solar minimum, along with advanced solar atmospheric magnetic field models, we establish a new limit... -
Lindley Winslow27/03/2025, 17:20Talk
The nature of dark matter remains one of the greatest open questions in physics. The DMRadio program focuses on axions with masses below 1 μeV, a highly motivated parameter space linked to GUT-scale physics and dark matter produced before inflation. Exploring this regime presents unique challenges, requiring large magnets and precision sensing techniques that push beyond the Standard Quantum...
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Andrew Sonnenschein (Fermilab)27/03/2025, 17:35Talk
The BREAD Collaboration is conducting R&D towards wide band dish antenna searches for axions using a unique coaxial antenna design which is well suited for deployment in large solenoid magnets and compatible with sub-kelvin detectors. We will discuss the overall BREAD (Broadband Reflector Experiment for Axion Detector) program and its technology development, focusing on plans for detectors in...
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