Conveners
Nuclear Astrophysics, Quark, Lepton, and QCD, Neutrino physics
- Suresh Kumar Patra (Institute of Physics, Bhubaneswar)
Nuclear Astrophysics, Quark, Lepton, and QCD, Neutrino physics
- P K Sahoo (Institute of Physics, Bhubaneswar)
Nuclear Astrophysics, Quark, Lepton, and QCD, Neutrino physics
- Hiranmaya Mishra (Institute of Physics, Bhubaneswar)
Nuclear Astrophysics, Quark, Lepton, and QCD, Neutrino physics
- Sanjay Kumar Swain (National Institute of Science Education and Research (NISER))
Nuclear Astrophysics, Quark, Lepton, and QCD, Neutrino physics
- V Sreekanth (Amrita School of Physical Sciences)
We investigate how the intrinsic nature of fermionic dark matter (DM),
Dirac versus Majorana, affects the structure of compact stars. Incorporating DM
into a relativistic mean-field framework with a scalar portal coupling to nucleons,
we derive self-consistent equations of state and solve the
Tolman–Oppenheimer–Volkoff equations. Differences in internal degrees of
freedom lead Dirac DM to...
We explore the structure, rotation, and non-radial oscillations of
anisotropic dark energy stars, by modeling the matter using a modified Chaplygin
equation of state and adopting the Bowers–Liang prescription for anisotropic
pressure. We first extend stellar equilibrium to slowly rotating configurations under
anisotropy, solving the structure equations to obtain mass, radius,...
We constrain the nuclear matter equation of state within the relativistic
mean field model by including the isoscalar-vector and isovector-vector coupling
term at a fundamental level using the Bayesian analysis. We used the nuclear
saturation properties and recent astrophysical observations to constrain the dense
matter equation of state. We obtained about 20000 sets of equations of states...
Accurate estimates of (anti)neutrino spectra and luminosities are
essential for assessing the feasibility of detecting neutrinos from pre-supernova
stars. Using a recently proposed thermal quasiparticle random-phase
approximation (TQRPA) method, we investigated the effects of nuclear
temperature on pre-supernova (anti)neutrino emission. By comparing the $\nu_e$
and $\bar\nu_e$ spectra...
Understanding the polarization of final-state leptons in neutrino–nucleus
interactions plays a significant role in probing fundamental symmetries. We present
an implementation of final-state lepton polarization within the GENIE neutrino
event generator, focusing on charged-current quasielastic (CCQE) and
two-particle–two-hole (2p2h) scattering processes. The polarization vector of...
This study examines the impact of dark matter (DM) on the bulk
properties of neutron stars (NS) using the relativistic mean field (RMF) theoretical
framework. The analysis considers the neutralino with a mass of 200 GeV, as the
DM candidate. This particle interacts with baryons via the standard Higgs boson.
The investigation focuses on how variations in the dark matter Fermi...
In this work, we present the first investigation of dark matter-admixed
quarkyonic stars (DAQSs) using a two-fluid framework. The visible sector of the
star is described through a quarkyonic equation of state (EOS) based on the
Effective Relativistic Mean Field (E-RMF) model, while the DM component is
modeled as a degenerate fermionic gas with scalar and vector self-interaction
terms. Our...
The three-flavour framework of neutrino oscillations successfully
explains most experimental results; however, persistent anomalies at both short-
and long-baseline experiments hint at the existence of additional light sterile states.
In particular, eV-scale sterile neutrinos are motivated by LSND and MiniBooNE
results, while sub-eV sterile states have been proposed to address the...
Measurement of electron beam polarization is a cornerstone for
experiments probing hadronic structure and searching for Physics beyond
standard model. Compton polarimetry, based on Compton scattering between
polarized electrons and polarized photons offer non invasive, continuous
monitoring suited for high current, long duration experiments at
facilities like the Thomas Jefferson National...
