Connected Parts of Decuplet Electromagnetic Properties
High Energy Physics - Lattice
2009-05-12 v2 Nuclear Theory
Abstract
We determine the electromagnetic properties of decuplet resonances using chiral perturbation theory at next-to-leading order. Utilizing a partially quenched charge matrix, we isolate and remove the quark disconnected contractions. This allows us to compare the physical meson loop contributions to the connected contributions, of which the latter are currently calculated using lattice QCD. Finally we determine linear combinations of decuplet resonance and hyperon electromagnetic properties that are exactly independent of disconnected contractions in the isospin limit.
Cite
@article{arxiv.0903.0359,
title = {Connected Parts of Decuplet Electromagnetic Properties},
author = {B. C. Tiburzi},
journal= {arXiv preprint arXiv:0903.0359},
year = {2009}
}
Comments
4 pages, discussion improved, typos fixed, published version