Isospin effects on two-nucleon correlation functions in heavy-ion collisions at intermediate energies

Abstract

Using an isospin-dependent transport model, we study isospin effects on two-nucleon correlation functions in heavy-ion collisions induced by neutron-rich nuclei at intermediate energies. We find that these correlation functions are sensitive to the density dependence of nuclear symmetry energy, but not to the incompressibility of symmetric nuclear matter and the medium dependence of nucleon-nucleon cross sections. This sensitivity is mainly due to effects of nuclear symmetry energy on the emission times of neutrons and protons as well as their relative emission sequence. We also study the variations of the symmetry energy effects on nucleon-nucleon correlations with respect to the impact parameter, incident energy, and mass number of heavy ion collisions.

16 pages including 25 figures, REVTeX, typos corrected, to appear in Phys. Rev. C

References in corpus (5)

• Momentum dependence of symmetry potential in asymmetric nuclear matter for transport model calculations
• Spinodal decomposition of low-density asymmetric nuclear matter
• High Density Behaviour of Nuclear Symmetry Energy and High Energy Heavy-Ion Collisions
• Effect of symmetry energy on two-nucleon correlation functions in heavy-ion collisions induced by neutron-rich nuclei
• Isospin-Dependence of ${\pi }^{-}/{\pi }^{+}$ Ratio and Density-Dependence of Nuclear Symmetry Energy

Cited by in corpus (26)

• Reaction Dynamics with Exotic Beams
• Determination of the stiffness of the nuclear symmetry energy from isospin diffusion
• Nuclear matter symmetry energy and the neutron skin thickness of heavy nuclei
• Effects of momentum-dependent symmetry potential on heavy-ion collisions induced by neutron-rich nuclei
• Light cluster production in intermediate energy heavy-ion collisions induced by neutron-rich nuclei
• Near-threshold pion production with radioactive beams at the Rare Isotope Accelerator
• Double neutron/proton ratio of nucleon emissions in isotopic reaction systems as a robust probe of nuclear symmetry energy
• Effects of momentum-dependent nuclear potential on two-nucleon correlation functions and light cluster production in intermediate energy heavy-ion collisions
• Fast nucleon emission as a probe of the isospin momentum dependence
• Medium modifications of the nucleon-nucleon elastic cross section in neutron-rich intermediate energy HICs
• Single and double pi^{-}/pi^{+} ratios in heavy-ion reactions as probes of the high-density behavior of the nuclear symmetry energy
• Surveying the Nucleon-Nucleon Momentum Correlation Function in the Framework of Quantum Molecular Dynamics Model
• Correlations and Characterization of Emitting Sources
• Double neutron-proton differential transverse flow as a probe for the high-density behavior of the nuclear symmetry energy
• Observable effects of symmetry energy in heavy-ion collisions at RIA energies
• Probing the Nuclear Symmetry Energy with Heavy-Ion Reactions Induced by Neutron-Rich Nuclei
• Nuclear symmetry potential in the relativistic impulse approximation
• Exploring binding energy and separation energy dependences of HBT strength
• Nucleon-nucleon momentum correlation function as a probe of the density distribution of valence neutron in neutron-rich nucleus
• Isospin effects on two-particle correlation functions in E/A = 61 MeV 36Ar + 112,124Sn reactions
• Angular Dependence in Proton-Proton Correlation Functions in Central ${}^{40}Ca{+}^{40}Ca$ and ${}^{48}Ca{+}^{48}Ca$ Reactions
• The neutron array of the compact spectrometer for heavy ion experiments in Fermi energy region
• Probing nuclear symmetry energy with the sub-threshold pion production
• Proton-proton momentum correlation function as a probe of the high momentum tail of the nucleon momentum distribution
• Difficulties in probing density dependent symmetry potential with the HBT interferometry
• Common Approaches in Description of Ordinary Liquids and Hadronic Matter