Multi-pomeron repulsion and the Neutron-star mass

Abstract

A multi-pomeron exchange potential (MPP) is proposed as a model for the three-body repulsion indicated in neutron-star matter, which works universally among three- and four-baryons. Its strength is determined by analyzing the nucleus-nucleus scattering with the G-matrix folding model. The EoS in neutron matter is obtained including the MPP contribution. The neutron-star mass is calculated by solving the TOV equation. The maximum mass is obtained to be larger than the observed one $1.97M_{solar}$ on the basis of the experimental data.

References in corpus (3)

• Shapiro delay measurement of a two solar mass neutron star
• Microscopic Study of the Isoscalar Giant Monopole Resonance in Cd, Sn and Pb Isotopes
• Large-mass neutron stars with hyperonization

Cited by in corpus (42)

• Strangeness in nuclear physics
• Hyperon Puzzle: Hints from Quantum Monte Carlo Calculations
• Neutron Stars and the Nuclear Equation of State
• Do hyperons exist in the interior of neutron stars ?
• Hyperon mixing and universal many-body repulsion in neutron stars
• p-p, p-$\Lambda$ and $\Lambda$-$\Lambda$ correlations studied via femtoscopy in pp reactions at $\sqrt{s}$ = 7 TeV
• (No) neutron star maximum mass constraint from hypernuclei
• Hyperon-nucleon three-body forces and strangeness in neutron stars
• Extended-soft-core Baryon-Baryon Model Esc08 II. Hyperon-Nucleon Interactions
• Coupled-channels calculations for nuclear reactions: from exotic nuclei to superheavy elements
• Impact of chiral hyperonic three-body forces on neutron stars
• Equation of state for neutron stars with hyperons by the variational method
• Hyperons: the strange ingredients of the nuclear equation of state
• Hyperon-mixed neutron star with universal many-body repulsion
• The Hyperon Puzzle in Neutron Stars
• Induced Hyperon-Nucleon-Nucleon Interactions and the Hyperon Puzzle
• Microscopic calculations based on chiral two- and three-nucleon forces for proton- and ${}^4$He-nucleus scattering
• Low-energy Scattering and Effective Interactions of Two Baryons at $m_{\pi }\sim 450$ MeV from Lattice Quantum Chromodynamics
• Strangeness and $\Delta$ resonance in compact stars with relativistic-mean-field models
• The $\mathbf{\Lambda p}$ interaction studied via femtoscopy in p + Nb reactions at $\sqrt{{\mathbf{s}}_{\mathbf{NN}}}=3.18\mathbf{GeV}$
• Neutron-star radii based on realistic nuclear interactions
• Extended-soft-core Baryon-Baryon Model ESC08 I. Nucleon-Nucleon Scattering
• Massive neutron stars and $\Lambda$-hypernuclei in relativistic mean field models
• Hyperons in Neutron Stars
• The Role of Baryon Structure in Neutron Stars
• Effects of hyperonic many-body force on $B_{\Lambda }$ values of hypernuclei
• Massive neutron star with strangeness in a relativistic mean-field model with a high-density cut-off
• Effective interactions of hyperons and mass-radius relation of neutron stars
• Repulsive $\Lambda$ potentials in dense neutron star matter and binding energy of $\Lambda$ in hypernuclei
• A bag model of matter condensed by the strong interaction
• Medium effect in high-density nuclear matter probed by systematic analyses of nucleus-nucleus elastic scattering
• Quark mean field model with pion and gluon corrections for $\Lambda ,{\Xi }^0$ hypernuclei and neutron stars
• A microscopic approach to ${}^3$He scattering
• Medium effect in high-density region probed by nucleus-nucleus elastic scattering
• Probing short-range nucleon-nucleon interactions with an Electron-Ion Collider
• Saturation of Nuclear Matter and Roles of Many-Body Forces: nuclear matter in neutron stars probed by nucleus-nucleus scattering
• Femtoscopic study of the $\Lambda \alpha$ interaction
• Signatures of strangeness in neutron star merger remnants
• The impact of hyperons on neutron star mergers: gravitational waves, mass ejection and black hole formation
• Effects of ${\varphi }_0$-meson on the EOS of hyperon star in the relativistic mean field model
• Relation between transition density and proton inelastic scattering by ${}^{12}$C target at $E_p=$ 65 and 200 MeV
• Dense Hadronic Matter in Neutron Stars