ARAPUCAs performance for scintillation light collection in the SBND experiment

• Grant number: 19/10626-0
• Support Opportunities: Scholarships in Brazil - Scientific Initiation
• Start date: August 01, 2019
• End date: July 31, 2020
• Field of knowledge: Physical Sciences and Mathematics - Physics - Elementary Particle Physics and Fields
• Principal Investigator: Laura Paulucci Marinho
• Grantee: Felipe Ponsano Franke
• Host Institution: Centro de Ciências Naturais e Humanas (CCNH). Universidade Federal do ABC (UFABC). Ministério da Educação (Brasil). Santo André , SP, Brazil

Abstract

The scintillation light detection can serve different purposes in a time projection chamber filled with liquid argon (LArTPC), such as improving the energy, time, and position resolution of an event. However, the light detectors typically used in LArTPCs have either reduced efficiency (as for the acrylic bars) or pose difficulties because of their size in very large chambers (as for PMTs). In this scenario, a new device, the ARAPUCA, was proposed for a more efficient detection and without taking much volume in large projects. In the Short Baseline Near Detector (SBND) experiment, ARAPUCAs will be installed as part of an R&D project in view of its application to the DUNE experiment. This project aims to study the scintillation light detection by these instruments and the development of the necessary analysis tool to verify the improvement of the parameters associated to the events with the use of ARAPUCAs that will be installed in the SBND.