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Meson Photo-Couplings From Lattice Quantum Chromodynamics, Christian J. P. Shultz
Meson Photo-Couplings From Lattice Quantum Chromodynamics, Christian J. P. Shultz
Physics Theses & Dissertations
We explore the calculation of three-point functions featuring a vector current insertion in lattice Quantum Chromodynamics. These three-point functions, in general, contain information about many radiative transition matrix elements simultaneously. We develop and implement the technology necessary to isolate a single matrix element via the use of optimized operators, operators designed to interpolate a single meson eigenstate, which are constructed as variationally optimized linear combination of meson interpolating fields within a large basis. In order to frame the results we also explore some well known phenomenology arising within the context of the constituent quark model before transitioning to a lattice …