Isospin Transport in class='cmr-7'>84Kr + class='cmr-7'>112 class='cmmi-7'>, class='cmr-7'>124Sn Reactions at Fermi Energies — First Physics Results from FAZIA

摘要

The FAZIA Collaboration studied collisions of a ^{84}Kr beam at 35 AMeV with ^{112}Sn and ^{124}Sn targets by means of a three-layer telescope. A good isotopic resolution up to Z = 20 was reached. The isotopic content of the products was found to depend on the neutron richness of the target, which is an evidence of isospin diffusion. Neutron-rich light fragments emitted from the phase space close to the centre-of-mass were observed, which can be interpreted as an effect of isospin drift in the neck region of low density.