Research Symposium

BIO

Angelo Dattoli is in his first year at FSU looking to obtain a Bachelor of Science in Physics. Under the guidance of his research mentor, Dr. Barriga, Angelo took part in analyzing data from the GlueX spectrometer. In the future, he plans on continuing to do research so that he can go to graduate school for theoretical physics. He hopes to one day become a researcher and professor, so that he may spend his career thinking about the universe.

Understanding the Momentum Dependence of the π0 Mass Resolution at GlueX

Abstract

The GlueX experiment is a particle physics experiment based at the Thomas Jefferson National Accelerator Facility in Newport News, Virginia, with the aim of detecting hybrid mesons and achieving a better understanding of the light meson spectrum. Data collected with the GlueX detector is reconstructed to identify the particles produced and analyze their reactions. This research supports the GlueX analyses by evaluating the resolution of the detectors and how it depends on momentum. Specifically, this project applies chi-squared and event selection criteria to the γp → γpπ0 ; π0 → γγ reaction to suppress background noise and extract the π0 mass resolution. Then, the π0 resolution is used to assess how the detectors behave under different momentum ranges. Preliminary studies indicate that the π0 width and yield change across different momenta. While research is still ongoing, the results of this study will help build a greater understanding of the π0 mass resolution, leading to better analyses and Monte Carlo simulations in the future.

Keywords: resolution, momentum, GlueX