Differential Neutron-Proton Squeeze-out

Abstract

The elliptic flow (squeeze-out) of neutrons, protons and light complex particles in reactions of neutron-rich systems at relativistic energies is proposed as an observable sensitive to the strength of the symmetry term in the equation of state at supra-normal densities. Preliminary results from a study of the existing FOPI/LAND data for 197Au + 197Au collisions at 400 A MeV with the UrQMD model favor a moderately soft symmetry term with a density dependence of the potential term proportional to (rho/rho_0)^gamma with gamma = 0.6+-0.3.

2 pages, 1 figure, contribution to proceedings of International School of Nuclear Physics, 30th Course, Heavy-Ion Collisions from the Coulomb Barrier to the Quark-Gluon Plasma, Erice-Sicily: 16 - 24 September 2008

References in corpus (1)

• Double neutron-proton differential transverse flow as a probe for the high-density behavior of the nuclear symmetry energy

Cited by in corpus (15)

• Symmetry energy from elliptic flow in 197Au + 197Au
• Higher-order effects on the incompressibility of isospin asymmetric nuclear matter
• Probing the Nuclear Symmetry Energy with Heavy Ion Collisions
• Neutron-proton elliptic flow difference as a probe for the high density dependence of the symmetry energy
• The isospin dependent nucleon-nucleon inelastic cross section in the nuclear medium
• Effect of splitting of the neutron and proton effective mass on nuclear symmetry energy at finite temperature
• Model dependence of isospin sensitive observables at high densities
• The symmetry energy in nuclear reactions
• The ASY-EOS experiment at GSI: investigating the symmetry energy at supra-saturation densities
• The density- and isospin- dependent $\Delta$-formation cross section and its decay width
• Probing the momentum dependence of medium modifications of the nucleon-nucleon elastic cross sections
• Symmetry energy and nucleon-nucleon cross sections
• Production and rescattering of strange baryons at SPS energies in a transport model with hadron potentials
• Probing the symmetry energy at high baryon density with heavy ion collisions
• Incompressibility of asymmetric nuclear matter