Determining Fpi from spectral sum rules
Abstract
We derive spectral sum rules for a system with two quarks coupled to an imaginary isospin chemical potential in the ε regime. The sum rules show an explicit dependence on the pion decay constant which should make it possible to measure Fpi from the eigenvalue spectrum of this particular Dirac operator.
0
Turn this paper into a full lesson
ArcXiv compiles a staged curriculum from this paper: 8-12 lessons across beginner → advanced, synthesised section guides, visuals, flashcards, a quiz, exercises, and on-demand deep dives per section. Grounded in the abstract, never invented.