Effects of the high-momentum tail of nucleon momentum distribution on the isospin-sensitive observables

Abstract

Based on the Isospin-dependent transport model Boltzmann-Uehling-Uhlenbeck (IBUU), effects of the high momentum tail (HMT) of nucleon momentum distribution in colliding nuclei on some isospin-sensitive observables are studied in the semi-central ${}^{197}\mathrm{Au}{+}^{197}\mathrm{Au}$ reactions at incident beam energy of 400 MeV/nucleon. It is found that the nucleon transverse flow, the difference of neutron and proton transverse flows, the nucleon elliptic flow and free neutron to proton ratio are all less sensitive to the HMT, while the isospin-sensitive nucleon elliptic flow difference is clearly affected by the HMT. Except at very high kinetic energies, the kinetic energy distributions of ${\pi }^{-}$, ${\pi }^{+}$ and charged pion ratio ${\pi }^{-}/{\pi }^{+}$ are all sensitive to the HMT.

arXiv comment6 pages, 6 figures, to appear in Eur. Phys. J. A

References in corpus (41)

• Determination of the Equation of State of Dense Matter
• Recent Progress and New Challenges in Isospin Physics with Heavy-Ion Reactions
• Reaction Dynamics with Exotic Beams
• Constraints on the density dependence of the symmetry energy
• Transverse momentum analysis of collective motion in relativistic nuclear collisions
• Probing Cold Dense Nuclear Matter
• Circumstantial evidence for a soft nuclear symmetry energy at supra-saturation densities
• Momentum sharing in imbalanced Fermi systems
• Probing the High Density Behaviour of Nuclear Symmetry Energy with High Energy Heavy-Ion Collisions
• Evidence for the Strong Dominance of Proton-Neutron Correlations in Nuclei
• Momentum dependence of symmetry potential in asymmetric nuclear matter for transport model calculations
• Equation of state of asymmetric nuclear matter and collisions of neutron-rich nuclei
• Tensor Forces and the Ground-State Structure of Nuclei
• Density dependence of the symmetry energy and the nuclear equation of state: A Dynamical and Statistical model perspective
• On the Lorentz structure of the symmetry energy
• Effects of momentum-dependent symmetry potential on heavy-ion collisions induced by neutron-rich nuclei
• Investigation of Proton-Proton Short-Range Correlations via the 12C(e,e'pp) Reaction
• Probing the Symmetry Energy with Heavy Ions
• Symmetry Energy of Nucleonic Matter With Tensor Correlations
• Isospin dependence of collective flow in heavy-ion collisions at intermediate energies
• Density and isospin asymmetry dependence of high-momentum components
• Exclusive Electro-Disintegration of 3He at high Q2: II. Decay Function Formalism
• Subthreshold pion production within a transport description of central Au+Au collisions
• Towards a model-independent constraint of the high-density dependence of the symmetry energy
• Isospin emission and flows at high baryon density: a test of the symmetry potential
• Probing the density dependence of the symmetry potential at low and high densities
• Elliptic flow in heavy ion collisions near the balance energy
• Relativistic effects in the search for high density symmetry energy
• Single and double pi^{-}/pi^{+} ratios in heavy-ion reactions as probes of the high-density behavior of the nuclear symmetry energy
• Thermal properties of asymmetric nuclear matter with an improved isospin- and momentum-dependent interaction
• Effects of short-range correlation reduced kinetic symmetry energy in heavy-ion collisions at intermediate energies
• Three-body force effect on nucleon momentum distributions in asymmetric nuclear matter within the framework of the extended BHF approach
• 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
• Cross-checking the symmetry energy at high densities
• Normal or abnormal isospin-fractionation as a qualitative probe of nuclear symmetry energy at supradensities
• Effects of nuclear symmetry energy on eta meson production and its rare decay to the dark U-boson in heavy-ion reactions
• The influence of the symmetry energy on the cone-azimuthal emission
• Model dependence of isospin sensitive observables at high densities
• Effect of the momentum dependence of nuclear symmetry potential on the transverse and elliptic flows
• Effect of Delta potential on the pion-/pion+ ratio in heavy-ion collisions at intermediate energies

Cited by in corpus (10)

• Nucleon Effective Masses in Neutron-Rich Matter
• Dense Nuclear Matter Equation of State from Heavy-Ion Collisions
• The interplay of short-range correlations and nuclear symmetry energy in hard photon productions from heavy-ion reactions at Fermi energies
• 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
• Nucleon Short-Range Correlations and High-Momentum Dynamics: Implications on the Equation of State of Dense Matter
• A possible probe of the new fifth force
• Effects of high-momentum tail of nucleon momentum distribution on initiation of cluster production in heavy-ion collisions at intermediate energies
• Neutron Star Equation of State with Nucleon Short-Range Correlations: A Concise Review and Open Issues
• Transport Model Comparison Studies of Intermediate-Energy Heavy-Ion Collisions