Neutrino mean free path in neutron stars in the presence of hyperons

Abstract

We investigate the neutrino elastic differential cross-section (NDCS) and corresponding mean free path for neutral current scattering in the dense matter of a neutron star. A wide range of observed neutron star (NS) masses is considered, including the presence of $\Lambda$, ${\Xi }^{-}$, and ${\Xi }^0$ hyperons in the heaviest stars. Their presence significantly decreases the total neutrino mean free path in the heavier stars.

14 pages, 7 figures, 1 table, PRC published version

References in corpus (20)

• GW170817: Observation of Gravitational Waves from a Binary Neutron Star Inspiral
• A Massive Pulsar in a Compact Relativistic Binary
• Multi-messenger Observations of a Binary Neutron Star Merger
• A NICER View of the Massive Pulsar PSR J0740+6620 Informed by Radio Timing and XMM-Newton Spectroscopy
• Refined Mass and Geometric Measurements of the High-Mass PSR J0740+6620
• Theory of Core-Collapse Supernovae
• Muon Creation in Supernova Matter Facilitates Neutrino-driven Explosions
• Hypernuclear Physics for Neutron Stars
• Cold uniform matter and neutron stars in the quark-mesons-coupling model
• Binding of Hypernuclei in the Latest Quark-Meson Coupling Model
• Heavy Baryons in Compact Stars
• LOFAR discovery of the fastest-spinning millisecond pulsar in the Galactic field
• Stellar Collapse Diversity and the Diffuse Supernova Neutrino Background
• Supernova Simulations Confront SN 1987A Neutrinos
• SU(3)-flavour breaking in octet baryon masses and axial couplings
• The properties of the neutron star PSR J0348+0432
• Effect of nucleon effective mass and symmetry energy on the neutrino mean free path in a neutron star
• Effects of the neutrino electromagnetic form factors on the neutrino and antineutrino mean free paths in dense matter
• Implications of PREX--2 data on the electron--neutrino opacity in dense matter
• Neutrino propagation in the neutron star with uncertainties from nuclear, hadron, and particle physics