Intermediate mass fragments and isospin dependence in Sn-124,Xe-124+Sn-124,Sn-112 reactions at 28 MeV/nucleon
Academic Article
Overview
Research
Identity
Additional Document Info
Other
View All
Overview
abstract
Intermediate mass fragment [Formula Presented] emission in [Formula presented] reactions at [Formula Presented] were studied using neutron ion multidetector for reaction oriented dynamics, a [Formula Presented] charged particle detection system. A number of observables, such as isotopic yield distributions, energy spectra of light charged particles and intermediate mass fragments, isotopic and isobaric yield ratios, and average neutron to proton ratios are investigated. These observables show significant dependence on the isospin [Formula Presented] of the reacting system. It is observed that the formation of neutron-rich clusters are correlated with the excess neutrons in the composite system and depends on the temperature of the emitting source. The origin of light particles and fragments was studied through observations of rapidity distribution as a function of collision violence. With increasing centrality, the heavier [Formula presented] isotope is found to be emitted closer to the midrapidity region than the lighter [Formula presented] isotope. The emission of heavy fragments from the midrapidity region becomes increasingly favorable for fragments with higher charge [Formula Presented]. The results suggest that the midrapidity region is not only neutron rich but also a rich source of heavy fragment (cluster) formation. 2003 The American Physical Society.
