1.5k citations · 13.1k across the 91 of their papers we have counts for
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Probing the small-scale primordial power spectrum via relic neutrinos and acoustic reheating
Giovanni Piccoli, Sunny Vagnozzi, Joseph Silk
We show that the dissipation of small-scale perturbations through diffusion damping after neutrino decoupling lowers the present-day neutrino temperature compared to the expected v…
Direct detection of solar chameleons with electron recoil data from XENONnT
Guan-Wen Yuan, Anne-Christine Davis, Maurizio Giannotti +3
We reassess prospects for direct detection of solar chameleons, in light of recent progress in modeling their production, and the availability of new XENONnT data. We show that the…
Solar chameleons: Novel channels
Tomás O'Shea, Anne-Christine Davis, Maurizio Giannotti +3
We revisit the flux of chameleons (light scalar particles which could play a role in the dark energy phenomenon) produced in the interior of the Sun. Our novel analysis incorporate…
Constraints on fifth forces and ultralight dark matter from OSIRIS-REx target asteroid Bennu
Yu-Dai Tsai, Davide Farnocchia, Marco Micheli +2
Using the OSIRIS-REx mission and ground-based tracking data for the asteroid Bennu, we derive new constraints on fifth forces and ultralight dark matter. The bounds we obtain are s…
Novel constraints on fifth forces and ultralight dark sector with asteroidal data
Yu-Dai Tsai, Youjia Wu, Sunny Vagnozzi +1
We study for the first time the possibility of probing long-range fifth forces utilizing asteroid astrometric data, via the fifth force-induced orbital precession. We examine nine…
Direct detection of dark energy: the XENON1T excess and future prospects
Sunny Vagnozzi, Luca Visinelli, Philippe Brax +2
We explore the prospects for direct detection of dark energy by current and upcoming terrestrial dark matter direct detection experiments. If dark energy is driven by a new light d…
Cosmological window onto the string axiverse and the supersymmetry breaking scale
Luca Visinelli, Sunny Vagnozzi
In the simplest picture, the masses of string axions populating the axiverse depend on two parameters: the supersymmetry breaking scale and the action of the str…
Diurnal modulation signal from dissipative hidden sector dark matter
R. Foot, S. Vagnozzi
We consider a simple generic dissipative dark matter model: a hidden sector featuring two dark matter particles charged under an unbroken interaction. Previous work has sho…
Dissipative hidden sector dark matter
R. Foot, S. Vagnozzi
A simple way of explaining dark matter without modifying known Standard Model physics is to require the existence of a hidden (dark) sector, which interacts with the visible one pr…