Proton Differential Elliptic Flow and the Isospin-Dependence of the Nuclear Equation of State

Abstract

Within an isospin-dependent transport model for nuclear reactions involving neutron-rich nuclei, we study the first-order direct transverse flow of protons and their second-order differential elliptic flow as a function of transverse momentum. It is found that the differential elliptic flow of mid-rapidity protons, especially at high transverse momenta, is much more sensitive to the isospin dependence of the nuclear equation of state than the direct flow. Origins of these different sensitivities and their implications to the experimental determination of the isospin dependence of the nuclear equation of state by using neutron-rich heavy-ion collisions at intermediate energies are discussed.

15 pages, 6 figures. Phys. Rev. C (2001) in press

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• Light clusters production as a probe to the nuclear symmetry energy
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• Probing the density dependence of the symmetry potential at low and high densities
• Reaction Dynamics and Multifragmentation in Fermi Energy Heavy Ion Reactions
• Effects of momentum-dependent nuclear potential on two-nucleon correlation functions and light cluster production in intermediate energy heavy-ion collisions
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• Elliptical flow and isospin effects in heavy-ion collisions at intermediate energies
• Single and double pi^{-}/pi^{+} ratios in heavy-ion reactions as probes of the high-density behavior of the nuclear symmetry energy
• Isospin effects on two-nucleon correlation functions in heavy-ion collisions at intermediate energies
• 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
• Flow probe of symmetry energy in relativistic heavy-ion reactions
• On the elliptical flow and asymmetry of the colliding nuclei
• Isospin fractionation in the nucleon emissions and fragment emissions in the intermediate energy heavy ion collisions
• Isospin effects on two-particle correlation functions in E/A = 61 MeV 36Ar + 112,124Sn reactions
• Hard photon flow and photon-photon correlation in intermediate energy heavy-ion collisions
• Influence of a momentum dependent interaction on the isospin dependence of fragmentation and dissipation in intermediate energy heavy ion collisions
• The influence of the symmetry energy on the cone-azimuthal emission
• Influence of medium correction of nucleon nucleon cross section on the fragmentation and nucleon emission
• Determining the density dependence of the nuclear symmetry energy using heavy-ion reactions
• High $p_t$ squeezed-out n/p ratio as a probe of $K_{\mathrm{sym}}$ of the symmetry energy
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• Probing nuclear symmetry energy with the sub-threshold pion production
• Probing the isospin dependent mean field and nucleon nucleon cross section in the medium by the nucleon emissions
• Evolutions of in-medium baryon-baryon scattering cross sections and stiffness of dense nuclear matter from Bayesian analyses of FOPI proton flow excitation functions
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• Elimination of influence of neutron-skin size difference of initial colliding nuclei in Pb+Pb collisions
• Differential Transverse Flow in Central C-Ne and C-Cu Collisions at 3.7 GeV/nucleon