Strangeness and Charge Symmetry Violation in Nucleon Structure

  • Phiala Elisabeth Shanahan

Part of the Springer Theses book series (Springer Theses)

Table of contents

  1. Front Matter
    Pages i-xv
  2. Phiala Elisabeth Shanahan
    Pages 1-3
  3. Phiala Elisabeth Shanahan
    Pages 5-20
  4. Phiala Elisabeth Shanahan
    Pages 21-42
  5. Phiala Elisabeth Shanahan
    Pages 43-58
  6. Phiala Elisabeth Shanahan
    Pages 59-70
  7. Phiala Elisabeth Shanahan
    Pages 71-97
  8. Phiala Elisabeth Shanahan
    Pages 99-160
  9. Phiala Elisabeth Shanahan
    Pages 161-163
  10. Back Matter
    Pages 165-213

About this book


This thesis discusses two key topics: strangeness and charge symmetry violation (CSV) in the nucleon. It also provides a pedagogical introduction to chiral effective field theory tailored to the high-precision era of lattice quantum chromodynamics (QCD). Because the nucleon has zero net strangeness, strange observables give tremendous insight into the nature of the vacuum; they can only arise through quantum fluctuations in which strange–antistrange quark pairs are generated. As a result, the precise values of these quantities within QCD are important in physics arenas as diverse as precision tests of QCD, searches for physics beyond the Standard Model, and the interpretation of dark matter direct-detection experiments. Similarly, the precise knowledge of CSV observables has, with increasing experimental precision, become essential to the interpretation of many searches for physics beyond the Standard Model. In this thesis, the numerical lattice gauge theory approach to QCD is combined with the chiral perturbation theory formalism to determine strange and CSV quantities in a diverse range of observables including the octet baryon masses, sigma terms, electromagnetic form factors, and parton distribution functions. This thesis builds a comprehensive and coherent picture of the current status of understanding of strangeness and charge symmetry violation in the nucleon.


Charge Symmetry Violation Nucleon Strangeness Electromagnetic Form Factors Chiral Perturbation Theory Lattice QCD Chiral Effective Field Theory Parton Distribution Functions Baryon Sigma Terms Octet Baryon Masses

Authors and affiliations

  • Phiala Elisabeth Shanahan
    • 1
  1. 1.Massachusetts Institute of TechnologyCenter for Theoretical PhysicsCambridgeUSA

Bibliographic information