Production of neutron-rich beam using mulinucleon transfer reactions for KOBRA

Recoil spectrometer, named as KOBRA (KOrea Broad Acceptance Recoil spectrometer and Apparatus), is being developed for RISP (Rare Isotope Science Project) in Korea. The spectrometer will be utilized not only to produce rare isotope (RI) beams but also to study nuclear physics, using stable beams from superconducting Linac or RI beams from ISOL facility. The neutron-rich RI beams will be produced by employing the mulinucleon transfer reactions at beam energy of 15$-$25 MeV/nucleon, from which high current of the RI beam can be obtained by larger production cross section than projectile-like fragmentation in intermediate energy. The calculated production cross sections are compared with the experimental data, and its reaction mechanism is briefly introduced.