Comparison of fragment partitions production in peripheral and central collisions

TL;DR

This paper compares fragment partitions from peripheral and central nuclear collisions, analyzing excitation energies and charge asymmetries to understand the effects of collective energy deposition.

Contribution

It introduces a comparative analysis of fragment partitions in different collision types, highlighting the role of collective energy in shaping fragment distributions.

Findings

Differences in charge asymmetry between the two ensembles.

Excitation energies derived from calorimetric methods.

Correlation of partition differences with collective energy deposition.

Abstract

Ensembles of single-source events, produced in peripheral and central collisions and correponding respectively to quasi-projectile and quasi-fusion sources, are analyzed. After selections on fragment kinematic properties, excitation energies of the sources are derived using the calorimetric method and the mean behaviour of fragments of the two ensembles are compared. Differences observed in their partitions, especially the charge asymmetry, can be related to collective energy deposited in the systems during the collisions.