Hyperon dynamics and production of multi-strangeness hypernuclei in heavy-ion collisions at 3A GeV

Abstract

Within the microscopic transport, systematic investigation of the many facets of hyperons and hypernuclei up to strangeness $S=-2$ are carried out for ${}^{197}$Au + ${}^{197}$Au and ${}^{40}$Ca + ${}^{40}$Ca at the incident energy of $3A$ GeV. The spatial, temporal and density distributions of hyperon production, absorption and freeze-out are thoroughly investigated. The rapidity and kinetic energy spectra of $\Xi$ hyperons and double $\Lambda$ hypernuclei are analyzed. It is revealed that the chemical balance of hyperon production is established in baryon-baryon channels while the opposite is found in baryon-meson channels. It turns out that the rapidity spectra of ${}_{\Lambda \Lambda }^{4,5}$X are single-peak and more than two orders of magnitude lower than that of ${}_{\Lambda }^3$H. Formation of double $\Lambda$ hypernuclei through $\Xi$ hypernuclei as intermediate states is also discussed in kinematics.

10 pages, 5 figures

References in corpus (14)

• Glauber Modeling in High Energy Nuclear Collisions
• Hyperon Puzzle: Hints from Quantum Monte Carlo Calculations
• New Hyperon Equations of State for Supernovae and Neutron Stars in Density-dependent Hadron Field Theory
• Hypernuclei, dibaryon and antinuclei production in high energy heavy ion collisions: Thermal production vs. Coalescence
• Production of hypernuclei in multifragmentation of nuclear spectator matter
• Formation of hypermatter and hypernuclei within transport models in relativistic ion collisions
• Production of excited double hypernuclei via Fermi breakup of excited strange systems
• Deep sub-threshold $\Xi$ and $\Lambda$ production in nuclear collisions with the UrQMD transport model
• A study of hyperons in nuclear matter based on chiral effective field theory
• Formation of hypernuclei in heavy-ion collisions around the threshold energies
• Fragment formation in proton induced reactions within a BUU transport model
• Production of multi-strangeness hypernuclei and the YN-interaction
• Hyperon Dynamics in Heavy-ion Collisions near threshold energy
• Dynamics of light hypernuclei in collisions of ${}^{197}$Au+${}^{197}$Au at GeV energies

Cited by in corpus (2)

• Correlation of the hyperon potential stiffness with hyperon constituents in neutron stars and heavy-ion collisions
• Light and heavy $\Lambda$ hyperclusters in nuclear matter with relativistic-mean-field models