Effect of the momentum dependence of nuclear symmetry potential on the transverse and elliptic flows

Abstract

In the framework of the isospin-dependent Boltzmann-Uehling-Uhlenbeck transport model, effect of the momentum dependence of nuclear symmetry potential on nuclear transverse and elliptic flows in the neutron-rich reaction ${}^{132}$Sn+${}^{124}$Sn at a beam energy of 400 MeV/nucleon is studied. We find that the momentum dependence of nuclear symmetry potential affects the rapidity distribution of the free neutron to proton ratio, the neutron and the proton transverse flows as a function of rapidity. The momentum dependence of nuclear symmetry potential affects the neutron-proton differential transverse flow more evidently than the difference of neutron and proton transverse flows as well as the difference of proton and neutron elliptic flows. It is thus better to probe the symmetry energy by using the difference of neutron and proton flows since the momentum dependence of nuclear symmetry potential is still an open question. And it is better to probe the momentum dependence of nuclear symmetry potential by using the neutron-proton differential transverse flow and the rapidity distribution of the free neutron to proton ratio.

6 pages, 6 figures, to be published by EPJA

References in corpus (6)

• Isospin emission and flows at high baryon density: a test of the symmetry potential
• Transport parameters in neutron stars from in-medium NN cross sections
• Triton-${}^3$He relative and differential flows as probes of the nuclear symmetry energy at supra-saturation densities
• Double neutron-proton differential transverse flow as a probe for the high-density behavior of the nuclear symmetry energy
• Effect of the momentum dependence of nuclear symmetry potential on pion-/pion+ ratio in heavy-ion collisions
• Initialization effect in heavy-ion collisions at intermediate energies

Cited by in corpus (9)

• Results of the ASY-EOS experiment at GSI: The symmetry energy at suprasaturation density
• Towards a model-independent constraint of the high-density dependence of the symmetry energy
• Constraining the high-density nuclear symmetry energy with the transverse-momentum dependent elliptic flow
• Flow probe of symmetry energy in relativistic heavy-ion reactions
• The influence of the symmetry energy on the cone-azimuthal emission
• Nuclear in-medium and isospin effects on subthreshold kaon production in heavy-ion collisions
• Effects of the high-momentum tail of nucleon momentum distribution on the isospin-sensitive observables
• Probing the density dependence of the symmetry energy by nucleon flow
• Pion production and absorption in heavy-ion collisions