Probing the impact of delta-baryons on nuclear matter and non-radial oscillations in neutron stars

Non -radial oscillations of Neutron Stars (NSs) provide a means to learn important details regarding their interior composition and equation of state. We consider the effects of triangle-baryons on non -radial f -mode oscillations and other NS properties within the DensityDependent Relativistic Mean Field formalism. Calculations are performed for triangle-admixed NS matter with and without hyperons. Our study of the non -radial f -mode oscillations revealed a distinct increase in frequency due to the addition of the triangle-baryons with upto 20% increase in frequency being seen for canonical NSs. Other bulk properties of NSs, including mass, radii, and dimensionless tidal deformability ( Lambda) were also affected by these additional baryons. Comparing our results with available observational data from pulsars (NICER) and gravitational waves (LIGO-VIRGO collaboration), we found strong agreement, particularly concerning Lambda.