Mass independence and asymmetry of the reaction: Multi-fragmentation as an example

TL;DR

This paper investigates how mass asymmetry affects nuclear fragmentation at 250 MeV/nucleon, revealing asymmetric reaction behaviors and emphasizing the need for experimental verification of predicted trends.

Contribution

It provides new insights into the mass asymmetry dependence of nuclear fragmentation, highlighting specific behaviors for intermediate mass fragments.

Findings

Asymmetry influences IMF production trends.

Large asymmetric reactions show different fragmentation patterns.

Experimental verification is recommended.

Abstract

We present our recent results on the fragmentation by varying the mass asymmetry of the reaction between 0.2 and 0.7 at an incident energy of 250 MeV/nucleon. For the present study, the total mass of the system is kept constant (ATOT = 152) and mass asymmetry of the reaction is defined by the asymmetry parameter (? = | (AT - AP)/(AT + AP) |). The measured distributions are shown as a function of the total charge of all projectile fragments, Zbound. We see an interesting outcome for rise and fall in the production of intermediate mass fragments (IMFs) for large asymmetric colliding nuclei. This trend, however, is completely missing for large asymmetric nuclei. Therefore, experiments are needed to verify this prediction.