Department of Physics: Recent submissions

Now showing items 61-80 of 756

Invoking Chiral Vector Leptoquark to explain LFU violation in B Decays

Chauhan, Bhavesh (2017-09)

LHCb has recently reported more than 2σ2σ deviation from the Standard Model prediction in the observable RJ/ψRJ/ψ. We study this anomaly in the framework of a vector leptoquark along with other lepton flavor universality ...
Constraints on Leptophilic Light Dark Matter from Internal Heat Flux of Earth

Chauhan, Bhavesh (Springer, 2018-05)

Direct Detection experiments have severely constrained the parameter space for WIMP Dark Matter in the mass range 1–100 GeV. However, there are few constraints on low mass dark matter due to insufficient nuclear recoil. ...
Leptoquark solution for both the flavor and ANITA anomalies

Chauhan, Bhavesh (APS, 2019-05)

The ANITA experiment has seen anomalous Earth emergent showers of EeV energies which cannot be explained with Standard Model interactions. In addition, tests of lepton flavor universality in 𝑅⁡(𝐷(*)) and 𝑅⁡(𝐾(*)) have ...
Large-energy single hits at JUNO from atmospheric neutrinos and dark matter

Chauhan, Bhavesh (APS, 2022-05)

Large liquid scintillator detectors, such as JUNO, present a new opportunity to study neutral current events from the low-energy end of the atmospheric neutrinos, and possible new physics signals due to light dark matter. ...
Using supernova neutrinos to probe strange spin of proton with JUNO and THEIA

Chauhan, Bhavesh (2022-11)

The strange quark contribution to proton's spin (Δs) is a fundamental quantity that is poorly determined from current experiments. Neutrino-proton elastic scattering (pES) is a promising channel to measure this quantity, ...
Feebly-interacting particles: FIPs 2022 Workshop Report

Chauhan, Bhavesh (Springer, 2023-12)

Particle physics today faces the challenge of explaining the mystery of dark matter, the origin of matter over anti-matter in the Universe, the origin of the neutrino masses, the apparent fine-tuning of the electro-weak ...
Sub-MeV Self Interacting Dark Matter

Chauhan, Bhavesh (APS, 2018-06)

In this paper, we present a model for sub-MeV dark matter with strong self-interactions which can solve some of the small-scale crisis of the Λ⁢CDM. The dark matter is a Majorana fermion with only off-diagonal interactions ...
Signature of Light Sterile Neutrinos at IceCube

Chauhan, Bhavesh (Springer, 2021-05)

The MiniBooNE collaboration has reported evidence for a light sterile neutrino with large mixing angles which is consistent with the results by LSND collaboration approximately 20 years ago. However, any such state would ...
A deuterated liquid scintillator for supernova neutrino detection

Chauhan, Bhavesh (IOP, 2021-11)

For the next galactic supernova, operational neutrino telescopes will measure the neutrino flux several hours before their optical counterparts. Existing detectors, relying mostly on charged current interactions, are mostly ...
Large Energy Singles at JUNO from Atmospheric Neutrinos and Dark Matter

Chauhan, Bhavesh (American Physical Society, 2021-11)

Large liquid scintillator detectors, such as JUNO, present a new opportunity to study neutral current events from the low-energy end of the atmospheric neutrinos, and possible new physics signals due to light dark matter. ...
Neutrino constraints on inelastic dark matter captured in the Sun

Chauhan, Bhavesh (IOP, 2024-01)

The flux of neutrinos from annihilation of gravitationally captured dark matter in the Sun has significant constraints from direct-detection experiments. However, these constraints are relaxed for inelastic dark matter as ...
Role of interband and intraband current in laser interaction with bichromatic quasiperiodic crystals

Bandyopadhyay, Jayendra N.; Holkundkar, Amol R. (APS, 2024-04)

We study the role of the inter- and intraband current in the laser interaction with the bichromatic quasiperiodic crystals. The interaction dynamics are simulated by solving the time-dependent Schrödinger equation in the ...
High-performance flexible solid-state asymmetric supercapacitor with NiCo2S4 as a cathode and a MXene-reduced graphene oxide sponge as an anode

Dalvi, Anshuman (RSC, 2024)

Ti3C2 MXenes have revealed immense potential in energy storage systems. Herein, we report the development of a flexible solid-state asymmetric supercapacitor (ASC) device by assembling spherical NiCo2S4 as a cathode, a ...
Ionic liquid composites with garnet-type Li6. 75Al0. 25La3Zr2O12: Stability, electrical transport, and potential for energy storage applications

Dalvi, Anshuman; Sivasubramanian, S.C. (Elsevier, 2024-04)

Garnet composites with ionic liquid dispersion have been prepared for electrolytic applications. Various ionic liquids (ILs) in small amounts were added to garnet type Li6.75Al0.25La3Zr2O12 (LALZO) to improve its ionic ...
Higher order elastic constants and generalized Gruneisen parameters of elastic waves and low temperature thermal expansion of gadolinium

Nair, Sindhu S. (Springer, 1996-12)

Expressions for the higher order elastic constants are derived using the sublattice displacements to the second degree in strains. These expressions are used to obtain the higher order elastic constants and their pressure ...
Fourth order nonlinear elastic coefficients of hexagonal close packed lattice

Nair, Sindhu S. (Elsevier, 1996-09)

The expressions for the fourth-order elastic constants of a hexagonal close packed lattice is derived using the sublattice displacements to the second order in strains. These expressions together with the expressions for ...
Higher order elastic constants and second pressure derivatives of zirconium

Nair, Sindhu S. (IAEA, 1997)

Expressions for the higher order elastic constants are derived using the sublattice displacements to the second degree in strains. These expressions together with the expressions for the second and third order elastic ...
Higher Order Elastic Constants and Generalized Gruneisen Parameters of Elastic Waves and Low Temperature Thermal Expansion of Titanium

Nair, Sindhu S. (Elsevier, 1997-02)

The expressions for the 19 fourth order elastic constants, 10 third order elastic constants, and 6 second order elastic constants of a solid are derived using the method of homogenous deformation with interactions extending ...
Higher order elastic constants and generalised gruneisen parameters of elastic waves and low temperature thermal expansion of dysprosium

Nair, Sindhu S. (Elsevier, 1997-12)

The expressions for the 19 fourth order elastic constants, 10 third order elastic constants and six second order elastic constants are derived using the method of homogenous deformation with interactions extending up to ...
Third-order elastic constants and low-temperature lattice thermal expansion of the high-temperature structural material TiAl

Nair, Sindhu S. (IOP, 2001)

We have derived the expressions for the 12 third-order elastic constants for a tetragonal system by the method of homogeneous deformation which are used to determine the third-order elastic constants of TiAl. These third-order ...

Now showing items 61-80 of 756

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