Date on Master's Thesis/Doctoral Dissertation

5-2021

Document Type

Doctoral Dissertation

Degree Name

Ph. D.

Department

Physics and Astronomy

Degree Program

Physics, PhD

Committee Chair

Brown, David

Committee Member

Banerjee, Swagato

Committee Member

Sumanasekera, Gamini

Committee Member

Riedel, Thomas

Author's Keywords

particle physics; hadron; babar; meson; multiplicity; photon

Abstract

In this dissertation I present independent measurements of the multiplicities, R, of π0 and η mesons produced in annihilation interactions of electrons and positrons at a center-of-mass energy of 10.54 GeV. Data were collected using the BaBar detector at the PEP-II storage rings located at the SLAC National Accelerator Laboratory in Menlo Park, California. Both mesons have a decay mode to two photons, which is used to identify them and measure their production per event. I find R(π0) = 2.8±0.3 per event and R(η) = 0.25±0.03 per event. I also present my contributions to software development for the Mu2e Experiment at the Fermi National Accelerator Laboratory.

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