Axial-Vector Currents and Chiral Symmetry

Ubbi Sauerwein

Research output: ThesisThesis fully internal (DIV)

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Abstract

In this work we consider the axial-vector form factors of the nucleon in flavor-SU(2) and of the baryon octet in flavor-SU(3) Chiral Perturbation Theory. We include the Δ-isobar and the baryon decuplet as explicit degrees of freedom and focus on their consistent treatment in terms of chiral power counting. We employ the use of on-shell meson and baryon masses in the one-loop contributions to the axial-vector form factors. The convergence properties of such an approach are scrutinized. Our results are compared to the available flavor-SU(2) QCD lattice data.
Original languageEnglish
QualificationDoctor of Philosophy
Awarding Institution
  • University of Groningen
Supervisors/Advisors
  • Lutz, M. F. M., Supervisor, External person
  • Timmermans, Robertus, Supervisor
Award date12-Mar-2021
Place of Publication[Groningen]
Publisher
DOIs
Publication statusPublished - 2021

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