Simulation of the RIBRAS Facility with GEANT4

TL;DR

This paper presents a detailed GEANT4 simulation of the RIBRAS facility, including beam optics and reaction mechanisms, to evaluate the feasibility of a Solenoidal Spectrometer for nuclear physics experiments.

Contribution

It introduces a comprehensive GEANT4 simulation framework for RIBRAS, incorporating advanced beam optics modeling and reaction mechanism routines, to assess spectrometer feasibility.

Findings

Simulation indicates feasibility of the Solenoidal Spectrometer with RIBRAS.

Parameterizations of coil currents for different operations were obtained.

The simulation framework enables future experimental and theoretical studies.

Abstract

A Geant4 simulation code was developed to perform realistic simulations of the RIBRAS facility. A second order expansion of a finite solenoid field was included to describe the beam optics with a good precision. A systematic study of coil currents for several magnetic rigidities and focal points was performed. Parameterizations of the coil currents for single and dual mode operations were obtained. Dedicated routines were developed to simulate the mechanism of direct reactions involving two and three particles in the final state. The present simulations were employed to investigate the feasibility of a Solenoidal Spectrometer with the RIBRAS facility. Our first results indicate that the concept can be applied in the RIBRAS system under certain conditions. Forthcoming studies both from simulations and experiment are already under development.