Date of Award
Physics and Astronomy
Jonathan F. Ormes
Boosted Decision Trees, CALET, Cosmic-rays, Fermi-LAT, Multivariate Analysis, Particle Identification
Measurements of the cosmic ray electron spectrum have received much attention over the last decade as anomalies in both electron and positron observations have been detected independently by several experiments. The profound possible implications in the fields of high energy astrophysics and particle physics have allowed for many interpretations on the origin of these inconsistencies in the spectra. This research focuses on two space-borne cosmic radiation experiments at different stages in their mission lifetimes: the Calorimetric Electron Telescope (CALET) and the Fermi Large Area Telescope (LAT). We explore the proton-electron discriminating capabilities of the CALET instrument through Monte Carlo simulations. Additionally, we present our efforts in electron identification using dedicated information of the tracking region of the LAT, exploiting calibration data from the beam test campaign. Within both studies, we employ multivariate techniques to improve the identification of cosmic ray electrons from the vast background.
Worley, Aaron James, "Identification of High Energy Cosmic Ray Electrons using Advanced Techniques in CALET and Fermi LAT" (2015). Electronic Theses and Dissertations. 1079.
Recieved from ProQuest
Aaron James Worley
Astrophysics, Particle physics