Quantal description of nucleon exchange in stochastic mean-field approach

TL;DR

This paper investigates nucleon exchange in symmetric heavy-ion collisions using a stochastic mean-field approach, incorporating quantum effects like non-Markovian dynamics and shell structure to improve understanding of fragment mass distributions.

Contribution

It introduces a quantal diffusion model with non-Markovian effects and shell structure for nucleon exchange in heavy-ion collisions.

Findings

Calculated variances of fragment mass distributions for specific systems.

Demonstrated the importance of quantum effects in nucleon exchange.

Provided quantitative insights into nucleon transfer mechanisms.

Abstract

Nucleon exchange mechanism is investigated in central collisions of symmetric heavy-ions in the basis of the stochastic mean-field approach. Quantal diffusion coefficients for nucleon exchange are calculated by including non-Markovian effects and shell structure. Variances of fragment mass distributions are calculated in central collisions of ${}^{40}$Ca + ${}^{40}$Ca, ${}^{48}$Ca + ${}^{48}$Ca and ${}^{56}$Ni + ${}^{56}$Ni systems.