83 citations · 288 across the 10 of their papers we have counts for
11 papers
Searching for a Fifth Force with Atomic and Nuclear Clocks
Dawid Brzeminski, Zackaria Chacko, Abhish Dev +2
We consider the general class of theories in which there is a new ultralight scalar field that mediates an equivalence principle violating, long-range force. In such a framework, t…
Constraining Feeble Neutrino Interactions with Ultralight Dark Matter
Abhish Dev, Gordan Krnjaic, Pedro Machado +1
If ultralight eV), bosonic dark matter couples to right handed neutrinos, active neutrino masses and mixing angles depend on the ambient dark matter density. When the neutri…
Improved cosmological constraints on the neutrino mass and lifetime
Guillermo F. Abellán, Zackaria Chacko, Abhish Dev +3
We present cosmological constraints on the sum of neutrino masses as a function of the neutrino lifetime, in a framework in which neutrinos decay into dark radiation after becoming…
A Time-Varying Fine Structure Constant from Naturally Ultralight Dark Matter
Dawid Brzeminski, Zackaria Chacko, Abhish Dev +1
We present a class of models in which the coupling of the photon to an ultralight scalar field that has a time-dependent vacuum expectation value causes the fine structure constant…
Signatures of Ultralight Dark Matter in Neutrino Oscillation Experiments
Abhish Dev, Pedro A. N. Machado, Pablo Martínez-Miravé
We study how neutrino oscillations could probe the existence of ultralight bosonic dark matter. Three distinct signatures on neutrino oscillations are identified, depending on the…
Determining the Neutrino Lifetime from Cosmology
Zackaria Chacko, Abhish Dev, Peizhi Du +2
We explore the cosmological signals of theories in which the neutrinos decay into invisible dark radiation after becoming non-relativistic. We show that in this scenario, near-futu…
Cosmological Limits on the Neutrino Mass and Lifetime
Zackaria Chacko, Abhish Dev, Peizhi Du +2
At present, the strongest upper limit on , the sum of neutrino masses, is from cosmological measurements. However, this bound assumes that the neutrinos are stable on cos…
Natural Alignment of Quark Flavors and Radiatively Induced Quark Mixings
Abhish Dev, Rabindra N. Mohapatra
The standard model does not provide an explanation of the observed alignment of quark flavors i.e. why are the up and down quarks approximately aligned in their weak interactions a…
Gauged - Model with an Inverse Seesaw Mechanism for Neutrino Masses
Abhish Dev
In this paper, we propose a gauge-symmetric model where is the left-right gauge symmetry and is the flavor lepton number. We use…
Improving the hierarchy sensitivity of ICAL using neural network
Ali Ajmi, Abhish Dev, Mohammad Nizam +2
Atmospheric neutrino experiments can determine the neutrino mass hierarchy for any value of . The Iron Calorimeter (ICAL) detector at the India-based Neutrino Observatory c…
Non-Zero and in a Neutrino Mass Model with Symmetry
Abhish Dev, P. Ramadevi, S. Uma Sankar
In this paper, we consider a neutrino mass model based on symmetry. The spontaneous symmetry breaking in this model is chosen to obtain tribimaximal mixing in the neutrino se…