Publications (18)
Searching for the QCD Dark Matter Axion
Masha Baryakhtar, Leslie Rosenberg, Gray Rybka
Proposed half a century ago, the quantum chromodynamics (QCD) axion explains the lack of charge and parity violation in the strong interactions and is a compelling candidate for co…
Dielectric-Boosted Sensitivity to Cylindrical Azimuthally Varying Transverse-Magnetic Resonant Modes in an Axion Haloscope
Aaron P. Quiskamp, Ben T. McAllister, Gray Rybka +1
Axions are a popular dark matter candidate which are often searched for in experiments known as ``haloscopes" which exploit a putative axion-photon coupling. These experiments typi…
Hidden Sector Photon Coupling of Resonant Cavities
Stephen R. Parker, Gray Rybka, Michael E. Tobar
Many beyond the standard model theories introduce light paraphotons, a hypothetical spin-1 field that kinetically mixes with photons. Microwave cavity experiments have traditionall…
Mass limits for fourth generation sequential neutrinos from dark matter experiments
Gray Rybka, Peter Fisher
Current mass limits for fourth generation sequential neutrinos come from dark matter experiments assuming g/ cm. We show that the latest results from the CDMS…
Effects of Cosmic Muons on eV-to-meV Scale Axion Dark Matter Searches
Dan Zhang, Gray Rybka, Edward J. Daw +1
We estimate the synchrotron radiation of cosmic muons in a uniform magnetic field in the eV-to-meV energy scale. Such events can potentially bring backgrounds to the axion dark…
Impact of cavities on the detection of quadratically coupled ultra-light dark matter
Clare Burrage, Angus Macdonald, Michael P. Ross +2
Ultra-light scalar fields may explain the nature of the dark matter in our universe. If such scalars couple quadratically to particles of the Standard Model the scalar acquires an…
Maximizing Quantum Enhancement in Axion Dark Matter Experiments
Chao-Lin Kuo, Chelsea L. Bartram, Aaron S. Chou +8
We provide a comprehensive comparison of linear amplifiers and microwave photon-counters in axion dark matter experiments. The study is done assuming a range of realistic operating…
Determining the neutrino mass with Cyclotron Radiation Emission Spectroscopy - Project 8
Ali Ashtari Esfahani, David M. Asner, Sebastian Böser +41
The most sensitive direct method to establish the absolute neutrino mass is observation of the endpoint of the tritium beta-decay spectrum. Cyclotron Radiation Emission Spectroscop…
A Search for Dark Matter Axions with the Orpheus Experiment
Gray Rybka, Andrew Wagner, Aryeh Brill +3
Axions are well motivated particles that could make up most or all of the dark matter if they have masses below 100 eV. Microwave cavity techniques comprised of closed resonant…
US Cosmic Visions: New Ideas in Dark Matter 2017: Community Report
Marco Battaglieri, Alberto Belloni, Aaron Chou +248
This white paper summarizes the workshop "U.S. Cosmic Visions: New Ideas in Dark Matter" held at University of Maryland on March 23-25, 2017.
Snowmass Cosmic Frontier Report
Aaron S. Chou, Marcelle Soares-Santos, Tim M. P. Tait +28
This report summarizes the current status of Cosmic Frontier physics and the broad and exciting future prospects identified for the Cosmic Frontier as part of the 2021 Snowmass Pro…
Report of the Topical Group on Wave Dark Matter for Snowmass 2021
Joerg Jaeckel, Gray Rybka, Lindley Winslow
There is a strong possibility that the particles making up the dark matter in the Universe have a mass below 1 eV and in many important situations exhibit a wave-like behavior. Amo…
Improving Dark Matter Axion Searches with Active Resonators
Gray Rybka
Axions are a well motivated candidate for dark matter. The most sensitive experiments searching for dark matter axions rely on the coupling of axions to the electromagnetic resonan…
Snowmass 2021 Cross Frontier Report: Dark Matter Complementarity (Extended Version)
Antonio Boveia, Mohamed Berkat, Thomas Y. Chen +24
The fundamental nature of Dark Matter is a central theme of the Snowmass 2021 process, extending across all frontiers. In the last decade, advances in detector technology, analysis…
Snowmass 2021 Dark Matter Complementarity Report
Antonio Boveia, Mohamed Berkat, Thomas Y. Chen +24
The fundamental nature of Dark Matter is a central theme of the Snowmass 2021 process, extending across all Frontiers. In the last decade, advances in detector technology, analysis…
Axion search with telescope for radio astronomy (ASTRA): forecast for observations between 0.5 and 4~GHz
Utkarsh Bhura, David J. E. Marsh, Bradley R. Johnson +8
Axion dark matter (DM) is predicted to convert into radio waves in neutron star magnetospheres. We assess the detectability of this signal using a 5 m radio telescope to be install…
Parametric Resonance in RF Axion Haloscopes
Kiara Chantel Ruffin, Gray Rybka
The axion were proposed as a result to a solution to the Strong CP Problem in quantum chromodynamics (QCD) and is now considered a leading candidate for dark matter. Direct axion d…
A Search for Z=-1 Dark Matter Annihilation Products in Cosmic Rays with AMS-01
Gray Rybka
The majority of mass in the universe has not been observed optically and is termed dark matter. The supersymmetric neutralino provides an interesting dark matter candidate, which m…