7 papers
Predicting the Dark Matter -- Baryon Abundance Ratio
Abhishek Banerjee, Dawid Brzeminski, Anson Hook
We discuss relaxation solutions to the dark matter - baryon coincidence problem in the context of QCD axion dark matter. In relaxation solutions, a moduli dynamically adjusts the m…
Warm Inflation with Pseudo-scalar Couplings
Edward Broadberry, Anson Hook, Sagnik Mondal
Inflaton couplings during warm inflation result in the production of a thermal bath. Thermal friction and fluctuations can dominate the standard de Sitter analogues, resulting in a…
Improved Dark Photon Sensitivity from the Dark SRF Experiment
Saarik Kalia, Zhen Liu, Bianca Giaccone +15
We report the refined dark-photon exclusion bound from Dark SRF's pathfinder run. Our new result is driven by improved theoretical modeling of frequency instability in high-quality…
Measuring gravitational lensing time delays with quantum information processing
Zhenning Liu, William DeRocco, Shiming Gu +6
The gravitational fields of astrophysical bodies bend the light around them, creating multiple paths along which light from a distant source can arrive at Earth. Measuring the diff…
Stacking the Deck: Gambling on a Light QCD Axion
Abhishek Banerjee, Manuel A. Buen-Abad, Anson Hook
We consider axions lighter than what their QCD couplings might otherwise suggest. Starting with a -axion, we introduce a small explicit symmetry-breaki…
United States Muon Collider Community White Paper for the European Strategy for Particle Physics Update
A. Abdelhamid, D. Acosta, P. Affleck +301
This document is being submitted to the 2024-2026 European Strategy for Particle Physics Update (ESPPU) process on behalf of the US Muon Collider community, with its preparation co…