Cross-checking the symmetry energy at high densities

Abstract

The nuclear symmetry energy determines the birth of neutron stars and the elementary nucleosynthesis in the universe. To constrain the nuclear symmetry energy, besides the studies in astrophysics, many terrestrial nuclear experiments are being carried out using a wide variety of advanced new facilities. In this paper, by cross-checking two unrelated experimental measurements using the newly updated transport model, we obtained a slightly soft symmetry energy at supra-saturation nuclear densities. While extrapolating to low nuclear densities, this result is compatible with the recent finding by comparing the available data on the electric dipole polarizability with the theoretical predictions. Our finding is expected to push the studies of nuclear physics and astrophysics forward.

8 pages, 11 figures, PRC, in production

References in corpus (20)

• Probing Cold Dense Nuclear Matter
• Momentum sharing in imbalanced Fermi systems
• Evidence for the Strong Dominance of Proton-Neutron Correlations in Nuclei
• Constraints on the Symmetry Energy Using the Mass-Radius Relation of Neutron Stars
• Tensor Forces and the Ground-State Structure of Nuclei
• The neutron skin thickness from the measured electric dipole polarizability in ${}^{68}$Ni, ${}^{120}$Sn, and ${}^{208}$Pb
• Symmetry energy from elliptic flow in 197Au + 197Au
• Systematics of central heavy ion collisions in the 1A GeV regime
• Symmetry energy of dilute warm nuclear matter
• Constraining the High-Density Behavior of Nuclear Symmetry Energy with the Tidal Polarizability of Neutron Stars
• Symmetry Energy of Nucleonic Matter With Tensor Correlations
• Surface Symmetry Energy of Nuclear Energy Density Functionals
• Thermal properties of asymmetric nuclear matter with an improved isospin- and momentum-dependent interaction
• Constraining the high-density nuclear symmetry energy with the transverse-momentum dependent elliptic flow
• Three-body force effect on nucleon momentum distributions in asymmetric nuclear matter within the framework of the extended BHF approach
• The neutron/proton ratio of squeezed-out nucleons and the high density behavior of the nuclear symmetry energy
• Normal or abnormal isospin-fractionation as a qualitative probe of nuclear symmetry energy at supradensities
• Effects of pion potential and nuclear symmetry energy on the ${\pi }^{-}/{\pi }^{+}$ ratio in heavy-ion collisions at beam energies around the pion production threshold
• Decomposition of sensitivity of the symmetry energy observables
• Effect of Delta potential on the pion-/pion+ ratio in heavy-ion collisions at intermediate energies

Cited by in corpus (21)

• Results of the ASY-EOS experiment at GSI: The symmetry energy at suprasaturation density
• Imprints of high-momentum nucleons in nuclei on hard photons from heavy-ion collisions around the Fermi Energy
• The interplay of short-range correlations and nuclear symmetry energy in hard photon productions from heavy-ion reactions at Fermi energies
• Constraining nucleon high momentum in nuclei
• Modeling pion production in heavy-ion collisions at intermediate energies
• Symmetry energy extracted from the S$\pi$RIT pion data in Sn+Sn systems
• Probing proton transition momentum in neutron-rich matter
• Effects of the high-momentum tail of nucleon momentum distribution on the isospin-sensitive observables
• Effects of symmetry energy in ${}^{132}\mathrm{Sn}{+}^{124}\mathrm{Sn}$ reaction at 300 MeV/nucleon
• Examination of an isospin-dependent single-nucleon momentum distribution for the isospin-asymmetric nuclear matter in heavy-ion collisions
• Effects of retarded electrical fields on observables sensitive to the high-density behavior of nuclear symmetry energy in heavy-ion collisions at intermediate energies
• Effects of the initialization of nucleon momentum in heavy-ion collisions at medium energies
• Determination of the density region of the symmetry energy probed by the ${\pi }^{-}/{\pi }^{+}$ ratio
• Beam energy dependence of the relativistic retardation effects of electrical fields on the ${\pi }^{-}/{\pi }^{+}$ ratio in heavy-ion collisions
• High $p_t$ squeezed-out n/p ratio as a probe of $K_{\mathrm{sym}}$ of the symmetry energy
• Probing the density dependence of the symmetry energy by nucleon flow
• Proton-proton momentum correlation function as a probe of the high momentum tail of the nucleon momentum distribution
• Nucleon momentum gap in asymmetric nuclear matter
• Blind spots of probing the high-density symmetry energy in heavy-ion collisions
• Probing in-medium nucleon-nucleon inelastic scattering cross section by using energetic n/p ratio
• Effects of high-momentum tail of nucleon momentum distribution on initiation of cluster production in heavy-ion collisions at intermediate energies