Formation of hypernuclei in evaporation and fission processes

Abstract

There are excellent opportunities to produce excited heavy hyper residues in relativistic hadron and peripheral heavy-ion collisions. We investigate the disintegration of such residues into hyper nuclei via evaporation of baryons and light clusters and their fission. Previously these processes were well known for normal nuclei as the decay channels at low excitation energies. We have generalized these models for the case of hyper-matter. In this way we make extension of nuclear reaction studies at low temperature into the strange sector. We demonstrate how the new decay channels can be integrated in the whole disintegration process. Their importance for mass and isotope distributions of produced hyper-fragments is emphasized. New and exotic isotopes obtained within these processes may provide a unique opportunity for investigating hyperon interaction in nuclear matter.

arXiv comment32 pages, 13 figures, accepted to Phys. Rev. C

References in corpus (16)

• Thermodynamical features of multifragmentation in peripheral Au + Au Collisions at 35 A.MeV
• Isospin dependent multifragmentation of relativistic projectiles
• Signals for a Transition from Surface to Bulk Emission in Thermal Multifragmentation
• Breakup Temperature of Target Spectators in Au + Au Collisions at E/A = 1000 MeV
• Production of hypernuclei in multifragmentation of nuclear spectator matter
• High-resolution velocity measurements on fully identified light nuclides produced in 56Fe + hydrogen and 56Fe + titanium systems
• Formation of hypermatter and hypernuclei within transport models in relativistic ion collisions
• Dense baryonic matter: constraints from recent neutron star observations
• Isospin and symmetry energy effects on nuclear fragment production in liquid-gas type phase transition region
• Production of excited double hypernuclei via Fermi breakup of excited strange systems
• Production of spectator hypermatter in relativistic heavy-ion collisions
• Production of hypernuclei in peripheral relativistic ion collisions
• Fission of heavy $\Lambda$ hypernuclei with the Skyrme-Hartree-Fock approach
• Symmetry energy of fragments produced in multifragmentation
• The decay time scale for highly excited nuclei as seen from asymmetrical emission of particles
• Extending the canonical thermodynamic model: inclusion of hypernuclei

Cited by in corpus (6)

• Monte-Carlo generator of heavy ion collisions DCM-SMM
• Coupling dynamical and statistical mechanisms for baryonic cluster production in nucleus collisions of intermediate and high energies
• Evaluation of the hyperon binding energy via statistical production of hypernuclei
• Production of light hypernuclei with light-ion beams and targets
• On survey of nuclei and hypernuclei in multifragmentation
• Cascade Models in Simulation of Extended Heavy Targets Irradiated by Accelerated Proton and Deuteron Beams