Structure of Nucleon Excited States from Lattice QCD
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Beschreibung
Quantum Chromodynamics (QCD) describes the interactions between elementary quarks and gluons as they compose the nucleons at the heart of atomic structure. The interactions give rise to complexity that can only be examined via numerical simulations on supercomputers. This work provides an introduction to the numerical simulations of lattice QCD and establishes new formalisms relevant to understanding the structure of nucleons and their excited states.
The research opens with an examination of the non-trivial QCD vacuum and the emergence of “centre domains.” The focus then turns to establishing a novel Parity-Expanded Variational Analysis (PEVA) technique solving the important problem of isolating baryon states moving with finite momentum. This seminal work provides a foundation for future calculations of baryon properties. Implementation of the PEVA formalism discloses important systematic errors in conventional calculations and reveals the structure of nucleon excited states from the first principles of QCD for the first time.Quantum Chromodynamics (QCD) describes the interactions between elementary quarks and gluons as they compose the nucleons at the heart of atomic structure. The interactions give rise to complexity that can only be examined via numerical simulations on supercomputers. This work provides an introduction to the numerical simulations of lattice QCD and establishes new formalisms relevant to understanding the structure of nucleons and their excited states.
The research opens with an examination of the non-trivial QCD vacuum and the emergence of “centre domains.” The focus then turns to establishing a novel Parity-Expanded Variational Analysis (PEVA) technique solving the important problem of isolating baryon states moving with finite momentum. This seminal work provides a foundation for future calculations of baryon properties. Implementation of the PEVA formalism discloses important systematic errors in conventional calculations and reveals the structure of nucleon excited states from the first principles of QCD for the first time.Nominated as an outstanding Ph.D. thesis by the The University of Adelaide, Adelaide, Australia South Australian nominee for the 2018 Bragg Gold Medal for Excellence in Physics First presentation of a groundbreaking technique in lattice QCD calculations of baryon properties Awarded the Intel Student Fellowship at LATTICE 2016 for outstanding research accomplishments in the field of Lattice QCD
Autor*in
Finn M. Stokes
Themen in »Structure of Nucleon Excited States from Lattice QCD«
Lattice QCD Centre Domains Parity-Expanded Variational Analysis Correlation Matrix Electromagnetic form Factors Baryon physics non-trivial QCD vacuum Calculation of Baryon properties QCD simulations