Spin transport in intermediate-energy heavy-ion collisions as a probe of in-medium spin-orbit interactions

Abstract

The spin up-down splitting of collective flows in intermediate-energy heavy-ion collisions as a result of the nuclear spin-orbit interaction is investigated within a spin- and isospin-dependent Boltzmann-Uehing-Uhlenbeck transport model SIBUU12. Using a Skyrme-type spin-orbit coupling quadratic in momentum, we found that the spin splittings of the directed flow and elliptic flow are largest in peripheral Au+Au collisions at beam energies of about 100-200 MeV/nucleon, and the effect is considerable even in smaller systems especially for nucleons with high transverse momenta. The collective flows of light clusters of different spin states are also investigated using an improved dynamical coalescence model with spin. Our study can be important in understanding the properties of in-medium nuclear spin-orbit interactions once the spin-dependent observables proposed in this work can be measured.

23 pages, 10 figures, version to appear in Nucl. Phys. A

References in corpus (6)

• Neutron Star Observations: Prognosis for Equation of State Constraints
• Triton-${}^3$He relative and differential flows as probes of the nuclear symmetry energy at supra-saturation densities
• Production of spin-controlled rare isotope beams
• Spin-orbit coupling and the up-down differential transverse flow in intermediate-energy heavy-ion collisions
• Dynamical effects of spin-dependent interactions in low- and intermediate-energy heavy-ion reactions
• Effect of the spin-orbit interaction on flows in heavy-ion collisions at intermediate energies

Cited by in corpus (10)

• Lambda hyperon polarization in relativistic heavy ion collisions from the chiral kinetic approach
• Deuteron production from phase-space coalescence in the UrQMD approach
• Dynamics of clusters and fragments in heavy-ion collisions
• Spectra and flow of light nuclei in relativistic heavy ion collisions at RHIC and the LHC
• Coalescence, the thermal model and multi-fragmentation: The energy and volume dependence of light nuclei production in heavy ion collisions
• Evolution of $\Lambda$ polarization in the hadronic phase of heavy-ion collisions
• Spin dynamics in intermediate-energy heavy-ion collisions with rigorous angular momentum conservation
• Simulating spin dynamics with spin-dependent cross sections in heavy-ion collisions
• Exploring light nuclei production at RHIC and LHC energies with A Multi-Phase Transport model and a coalescence afterburner
• Origins and Impacts of High-Density Symmetry Energy