Abhish Dev
YOU?
Author Swipe
View article: Constraining feeble neutrino interactions with ultralight dark matter
Constraining feeble neutrino interactions with ultralight dark matter Open
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 neutrino Majorana mass, induced by the dark matter background, is sm…
View article: Improved cosmological constraints on the neutrino mass and lifetime
Improved cosmological constraints on the neutrino mass and lifetime Open
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 non-relativistic. We find that in this regime the cosmic m…
View article: Searching for a fifth force with atomic and nuclear clocks
Searching for a fifth force with atomic and nuclear clocks Open
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, the Sun and Earth act as sources of the scalar field, leadin…
View article: Improved cosmological constraints on the neutrino mass and lifetime
Improved cosmological constraints on the neutrino mass and lifetime Open
View article: Searching for a Fifth Force with Atomic and Nuclear Clocks
Searching for a Fifth Force with Atomic and Nuclear Clocks Open
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, the sun and the earth act as sources of the scalar field, le…
View article: Constraining Feeble Neutrino Interactions with Ultralight Dark Matter
Constraining Feeble Neutrino Interactions with Ultralight Dark Matter Open
If ultralight $(\ll$ eV), bosonic dark matter couples to right handed neutrinos, active neutrino masses and mixing angles depend on the ambient dark matter density. When the neutrino Majorana mass, induced by the dark matter background, is…
View article: Improved cosmological constraints on the neutrino mass and lifetime
Improved cosmological constraints on the neutrino mass and lifetime Open
View article: Time-varying fine structure constant from naturally ultralight dark matter
Time-varying fine structure constant from naturally ultralight dark matter Open
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 to oscillate in time. The scalar field is assumed to const…
View article: Determining the neutrino lifetime from cosmology
Determining the neutrino lifetime from cosmology Open
We explore the cosmological signals of theories in which the neutrinos decay\ninto invisible dark radiation after becoming non-relativistic. We show that in\nthis scenario, near-future large scale structure measurements from the Euclid\nsa…
View article: Signatures of ultralight dark matter in neutrino oscillation experiments
Signatures of ultralight dark matter in neutrino oscillation experiments Open
View article: Cosmological limits on the neutrino mass and lifetime
Cosmological limits on the neutrino mass and lifetime Open
View article: Determining the Neutrino Lifetime from Cosmology
Determining the Neutrino Lifetime from Cosmology Open
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-future large scale structure measurements from the Euclid satel…
View article: Natural alignment of quark flavors and radiatively induced quark mixings
Natural alignment of quark flavors and radiatively induced quark mixings Open
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 according to their masses? We suggest a resolution of this p…
View article: Gauged $L_\mu$-$L_\tau$ Model with an Inverse Seesaw Mechanism for Neutrino Masses
Gauged $L_\mu$-$L_\tau$ Model with an Inverse Seesaw Mechanism for Neutrino Masses Open
In this paper, we propose a $G_{L-R}\times U(1)_{L_\mu-L_\tau}$ gauge-symmetric model where $G_{L-R}$ is the left-right gauge symmetry and $L_i$ is the $i-$flavor lepton number. We use the spontaneous breaking (SSB) of $U(1)_{L_\mu-L_\tau}…
View article: Gauged $L_μ$-$L_τ$ Model with an Inverse Seesaw Mechanism for Neutrino Masses
Gauged $L_μ$-$L_τ$ Model with an Inverse Seesaw Mechanism for Neutrino Masses Open
In this paper, we propose a $G_{L-R}\times U(1)_{L_μ-L_τ}$ gauge-symmetric model where $G_{L-R}$ is the left-right gauge symmetry and $L_i$ is the $i-$flavor lepton number. We use the spontaneous breaking (SSB) of $U(1)_{L_μ-L_τ}$ to expla…
View article: Improving the hierarchy sensitivity of ICAL using neural network
Improving the hierarchy sensitivity of ICAL using neural network Open
Atmospheric neutrino experiments can determine the neutrino mass hierarchy for any value of $δ_{CP}$. The Iron Calorimeter (ICAL) detector at the India-based Neutrino Observatory can distinguish between the charged current interactions of …
View article: Non-Zero $\theta_{13}$ and $\delta_{CP}$ in a Neutrino Mass Model with $A_4$ Symmetry
Non-Zero $\theta_{13}$ and $\delta_{CP}$ in a Neutrino Mass Model with $A_4$ Symmetry Open
View article: Non-zero θ 13 and δ CP in a neutrino mass model with A4 symmetry
Non-zero θ 13 and δ CP in a neutrino mass model with A4 symmetry Open
In this paper, we consider a neutrino mass model based on $A_4$ symmetry. The\nspontaneous symmetry breaking in this model is chosen to obtain tribimaximal\nmixing in the neutrino sector. We introduce $Z_2 \\times Z_2$ invariant\nperturbat…
View article: Non-Zero $\theta_{13}$ and $\delta_{CP}$ in a Neutrino Mass Model with $A_4$ Symmetry
Non-Zero $\theta_{13}$ and $\delta_{CP}$ in a Neutrino Mass Model with $A_4$ Symmetry Open
In this paper, we consider a neutrino mass model based on $A_4$ symmetry. The spontaneous symmetry breaking in this model is chosen to obtain tribimaximal mixing in the neutrino sector. We introduce $Z_2 \times Z_2$ invariant perturbations…