Normal or abnormal isospin-fractionation as a qualitative probe of nuclear symmetry energy at supradensities

Abstract

Within two different frameworks of isospin-dependent transport model, effect of nuclear symmetry energy at supradensities on the isospin-fractionation (IsoF) was investigated. With positive/negative symmetry potential at supradensities (i.e., values of symmetry energy increase/decrease with density above saturation density), for energetic nucleons, the value of neutron to proton ratio of free nucleons is larger/smaller than that of bound nucleon fragments. Compared with extensively studied quantitative observables of nuclear symmetry energy, the normal or abnormal isospin-fractionation of energetic nucleons can be a qualitative probe of nuclear symmetry energy at supradensities.

arXiv comment5 pages, 5 figures, accepted by Physics Letters B

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Cited by in corpus (17)

• Results of the ASY-EOS experiment at GSI: The symmetry energy at suprasaturation density
• Determination of the nuclear incompressibility from the rapidity-dependent elliptic flow in heavy-ion collisions at beam energies 0.4\emph{A} - 1.0\emph{A} GeV
• Cross-checking the symmetry energy at high densities
• Modeling pion production in heavy-ion collisions at intermediate energies
• 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
• Symmetry energy extracted from the S$\pi$RIT pion data in Sn+Sn systems
• Decomposition of sensitivity of the symmetry energy observables
• Effects of the high-momentum tail of nucleon momentum distribution on the isospin-sensitive observables
• The effect of internal magnetic field on collective flow in heavy ion collisions at intermediate energies
• Effects of symmetry energy in ${}^{132}\mathrm{Sn}{+}^{124}\mathrm{Sn}$ reaction at 300 MeV/nucleon
• Probing dense QCD matter in the laboratory: The CBM experiment at FAIR
• High $p_t$ squeezed-out n/p ratio as a probe of $K_{\mathrm{sym}}$ of the symmetry energy
• Determination of the density region of the symmetry energy probed by the ${\pi }^{-}/{\pi }^{+}$ ratio
• Probing the density dependence of the symmetry energy by nucleon flow
• High Density with Elliptic Flows
• Blind spots of probing the high-density symmetry energy in heavy-ion collisions
• Formation of large chunk of nuclear matter in heavy-ion collisions