Effects of the magnetic field on the spallation reaction implemented by BUU coupled with a phase-space coalescence afterburner
1 Institute of Modern Physics, Chinese Academy of Sciences - Lanzhou 730000, China
2 Graduate University of Chinese Academy of Sciences - Beijing 100049, China
Received: 20 June 2012
Accepted: 23 July 2012
Based on the Boltzmann-Uehling-Uhlenbeck (BUU) transport model coupled with a phase-space coalescence afterburner, the spallation reaction p + 197Au at the incident beam energy Ebeam = 800 MeV/nucleon is studied. We find that the number of test particles per nucleon has minor effects on the neutron-to-proton ratio (n/p) of the produced heavier fragments while it affects much their yields. The external strong magnetic field affects the production of heavier fragments more than the n/p of produced fragments. The n/p of free nucleons is greatly affected by the strong magnetic field, especially for the nucleons with lower energies.
PACS: 25.70.-z – Low and intermediate energy heavy-ion reactions / 25.40.-h – Nucleon-induced reactions / 24.10.Lx – Monte Carlo simulations (including hadron and parton cascades and string breaking models)
© EPLA, 2012