NuSym23, XIth International Symposium on Nuclear Symmetry Energy

The iso-scalar and iso-vector nuclear matter parameters (NMPs) are frequently used to characterise the equations of state (EoSs) that govern the properties of neutron stars (NSs). Recent attempts to relate the radius and tidal deformability of a NS to the individual NMPs have been inconclusive. These properties display strong correlations with the pressure of NS matter which depends on several...

A simplified version of the density dependent covariant density functional model is employed in a Bayesian analysis to determine the equation of state (EOS) of dense matter. Various constraints from nuclear physics; ab initio calculations of pure neutron matter (PNM); a lower bound on the maximum mass of neutron stars (NSs) are imposed in the order to investigate the effectiveness of their...

The non-radial oscillations of the neutron stars (NSs) have been suggested as an useful tool to probe the composition of neutron star matter (NSM). With this scope in mind, we consider a large number of equations of states (EOSs) that are consistent with nuclear matter properties and pure neutron matter EOS based on a chiral effective field theory (chEFT) calculation for the low densities and...

The cores of neutron stars (NS) reach densities several times the nuclear saturation density and could contain strangeness containing exotic particles such as hyperons. During the binary inspiral, viscous processes inside the NS matter can damp out the tidal energy induced by the companion and convert this to thermal energy to heat up the star. We demonstrate that the bulk viscosity...

In this talk, I will address the question of the understanding of dense matter from a model incorporating properties from quantum chromodynamics (QCD). QCD is a fundamental theory that poses challenges when applied to low-energy nuclear physics, such as finite nuclei and neutron star matter, due to its non-perturbative nature. While solving QCD numerically on a lattice is possible, it...

The R3B (Reactions with Relativistic Radioactive ion Beams) experiment
as a major instrument of the NUSTAR collaboration for the research facility
FAIR in Darmstadt, enables kinematically complete measurements of reactions
with high-energy radioactive beams. Part of the broad physics program of R3B
is to gain a deep insight into the nuclear structure and dynamics of exotic nuclei
far off...

Recently, we constructed a new equation of state (EoS) table including the Bose-Einstein
condensate of negatively charged kaons for core collapse supernova and binary neutron star merger simulations. The nuclear statistical equilibrium model
including excluded volume effects was used to describe the matter below the saturation density whereas the uniform matter composed of
neutrons,...

The deepest region of the neutron star (NS) crust may consist of a layer of so-called nuclear pastas. If they exist, these exotic nuclear structures could significantly affect the transport and mechanical properties of dense matter, leaving their imprints on such NS observables as continuous gravitational-wave emission, NS oscillations and their damping, the spin period of x-ray pulsars, and...

First results of the tests of the newly constructed KRAB detector will be
presented. The tests have been performed with the Bi source, cosmic rays and
with the proton beams from the CCB cyclotron in Krakow. The detector was
designed to provide fast, multiplicity based trigger for the future ASY-EOS II
experiment as well as the information on the azimuthal distributions of the
reaction...

TThe ratio $Y(\pi^-)/Y(\pi^+)$ ($\pi^-/\pi^+$) of the yields of the different charge states of $\pi$ is considered an important observable for determining the symmetry energy density in the high-density region. However, there remains much controversy in using it to constrain the resulting symmetry energy. This requires us to further explore the physical mechanisms associated with the...