The study of Borromean halo nuclei by the neutron wall with simulation

TL;DR

This paper develops a Monte Carlo simulation model to study the breakup of Borromean halo nuclei, specifically $^{6}$He, and evaluates detector resolution and efficiency for neutron detection.

Contribution

It introduces a simulation framework for analyzing Borromean halo nuclei breakup and assesses detector performance in capturing neutron correlations.

Findings

Resolution $\sigma_{E_{k}}$ for neutron detection was quantified.

Detection efficiency including solid angle acceptance was determined.

Effects of algorithms on fragment correlations were briefly analyzed.

Abstract

The model of three-body Borromean halo nuclei breakup was described by using standard phase space distributions and the Monte Carlo simulation method was established to resolve the detection problem of two neutrons produced from breakup reaction on the neutron wall detector. For $^{6}$He case, overall resolution $\sigma_{E_{k}}$ for the Gaussian part of the detector response and the detection efficiency including solid angle acceptance with regard to the excitation energy $E_{k}$ are obtained by the simulation of two neutrons from $^{6}$He breakup into the neutron wall. The effects of the algorithm on the angular and energy correlations of the fragments are briefly discussed.