Fragmentation 56Fe on C, Al and CH2 targets at 471Â AÂ MeV

The emission angle and the transverse momentum distributions of projectile fragments (PFs) produced in fragmentation of 56Fe on CH2, C, and Al targets at 471 A MeV are measured. It is found that the angular and transverse momentum distribution of all PFs do not evidently depend on the mass of target nucleus, the average value and width of angular distribution decrease with increase of the charge of PF for the same target, and no obvious dependence of angular distribution on the mass of target nucleus is found for the same PF. The transverse momentum distribution of PF can be explained by a single Gaussian distribution and the averaged transverse momentum decreases with the increase of the charge of PF. The cumulated squared transverse momentum distribution of PF can be well explained by a single Rayleigh distribution. The temperature parameter of PF emission source decreases with the increase of the size of PF.