A fast and complete GEANT4 and ROOT Object-Oriented Toolkit: GROOT

D Lattuada,Y Xu,C Matei,V Crucillà,G L Guardo,D L Balabanski,S Romano,M La Cognata,M Costa,S Chesnevskaya,R G Pizzone,A Tumino,C Spitaleri,M Lattuada,R.G Pizzone,S Palmerini

doi:10.1051/epjconf/201716501034

Abstract

Present and future gamma-beam facilities represent a great opportunity to validate and evaluate the cross-sections of many photonuclear reactions at near-threshold energies. Monte Carlo (MC) simulations are very important to evaluate the reaction rates and to maximize the detection efficiency but, unfortunately, they can be very cputime-consuming and in some cases very hard to reproduce, especially when exploring near-threshold cross-section. We developed a software that makes use of the validated tracking GEANT4 libraries and the n-body event generator of ROOT in order to provide a fast, realiable and complete MC tool to be used for nuclear physics experiments. This tool is indeed intended to be used for photonuclear reactions at γ -beam facilities with ELISSA (ELI Silicon Strip Array), a new detector array under development at the Extreme Light Infrastructure - Nuclear Physics (ELI-NP). We discuss the results of MC simulations performed to evaluate the effects of the electromagnetic induced background, of the straggling due to the target thickness and of the resolution of the silicon detectors.

Highlights

Nuclear reactions near threshold energies are of great interest in nuclear astrophysics
Nuclear physics experiments have a long history record and Monte Carlo (MC) simulations have always played a crucial role in their preparation, in data analysis and for proper understanding the experimental results
At Extreme Light Infrastructure - Nuclear Physics (ELI-NP)[2] in Bucharest, together with the Laboratori Nazionali del Sud (LNS) of INFN in Catania, we are developing a MC tool to be used in nuclear physics experiments focused on complex detectors and nuclear reactions with low cross-sections, using open-source scientific libraries with a strong record of validation

Summary

Introduction

Nuclear reactions near threshold energies are of great interest in nuclear astrophysics. At ELI-NP[2] in Bucharest, together with the Laboratori Nazionali del Sud (LNS) of INFN in Catania, we are developing a MC tool to be used in nuclear physics experiments focused on complex detectors and nuclear reactions with low cross-sections, using open-source scientific libraries with a strong record of validation.

Results

Conclusion