782 citations · 7.2k across the 127 of their papers we have counts for
10 papers · 1 filter
New Constraints on Axion-Like Particles from IXPE Polarization Data for Magnetars
Ephraim Gau, Fazlollah Hajkarim, Steven P. Harris +4
We derive new constraints on axion-like particles (ALPs) using precision -ray polarization studies of magnetars. Specifically, we use the first detection of polarized -rays f…
Flavor Matters, but Matter Flavors: Matter Effects on Flavor Composition of Astrophysical Neutrinos
P. S. Bhupal Dev, Sudip Jana, Yago Porto
We show that high-energy astrophysical neutrinos produced in the cores of heavily obscured active galactic nuclei (AGNs) can undergo strong matter effects, thus significantly influ…
Relic neutrino decay solution to the excess radio background
P. S. Bhupal Dev, Pasquale Di Bari, Ivan Martínez-Soler +1
The excess radio background detected by ARCADE 2 represents a puzzle within the standard cosmological model. There is no clear viable astrophysical solution, and therefore, it migh…
On the Galactic radio signal from stimulated decay of axion dark matter
P. S. Bhupal Dev, Francesc Ferrer, Takuya Okawa
We study the full-sky distribution of the radio emission from the stimulated decay of axions which are assumed to compose the dark matter in the Galaxy. Besides the constant extrag…
New Physics at Neutron Beam Dump
P. S. Bhupal Dev, Bhaskar Dutta, Tao Han +3
We find a new utility of neutrons, usually treated as an experimental nuisance causing unwanted background, in probing new physics signals. They can either be radiated from neutron…
Phenomenology of Lepton Masses and Mixing with Discrete Flavor Symmetries
Garv Chauhan, P. S. Bhupal Dev, Ievgen Dubovyk +6
The observed pattern of fermion masses and mixing is an outstanding puzzle in particle physics, generally known as the flavor problem. Over the years, guided by precision neutrino…