Dissertation/Thesis Abstract

Systematic approach to optimizing free parameters in the Goldstone-boson-exchange model of quark-quark interactions
by Nguyen, Khang D., M.S., California State University, Long Beach, 2014, 68; 1566292
Abstract (Summary)

The set of parameters used in the Goldstone-boson-exchange (GBE) model of quark-quark interactions by a group from the University of Graz to calculate baryon energy spectra is not optimal. A systematic approach to optimize these free parameters for a greater collection of baryons than previously treated is presented here. The baryons considered possess a physical symmetry where their constituent quarks are either made of all identical quarks or just two identical quarks. In order to calculate the various energy states of these baryons, the Faddeev method is used under the premise that three-quark interactions are modeled by an infinitely rising confinement potential. The new parameters and resulting energy calculations obtained yield better agreement with experimental data than previously achieved. In addition to providing a stronger case for the GBE model, these newfound parameters have the potential to give further insight into how quarks interact and pave the way for more advanced work in the field of three-quark problems.

Indexing (document details)
Advisor: Papp, Zoltan
Commitee: Bill, Andreas, Jaikumar, Prashanth
School: California State University, Long Beach
Department: Physics and Astronomy
School Location: United States -- California
Source: MAI 53/06M(E), Masters Abstracts International
Subjects: Quantum physics, Particle physics
Keywords: Baryon, Downhill simplex method, Faddeev equations, Faddeev method, Goldstone-boson-exchange model, Three-body problem
Publication Number: 1566292
ISBN: 978-1-321-23743-6
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