Peripheral collisions in the 84Kr + 92,98Mo,natAg and 197Au reactions at 22 MeV/u

Peripheral reactions induced on ⁹²Mo,⁹⁸Mo, ^natAg and ¹⁹⁷Au targets by 22 MeV per nucleon krypton beam were studied. Fragments observed with velocities close to the beam velocity can be interpreted as coming from a quasi-fragmentation of the projectile. The isotopic distributions measured for the fragments produced with the Kr projectile reflect some influence of the composite system. Thus it seems that projectile fragmentation is not the only mechanism involved in these reactions and that the mean field interaction still plays an important role at this energy.