The construction of baryonic operators for determining the N* excitation spectrum is discussed. The operators are designed with one eye towards maximizing overlaps with the low-lying states of interest, and the other eye towards minimizing the number of sources needed in computing the required quark propagators. Issues related to spin identification are outlined. Although we focus on tri-quark baryon operators, the construction method is applicable to both mesons and penta-quark operators.
@article{arxiv.hep-lat/0309079,
title = {Baryonic Operators for Lattice Simulations},
author = {LHP Collaboration and R. Edwards and R. Fiebig and G. Fleming and U. M. Heller and C. Morningstar and D. Richards and I. Sato and S. Wallace},
journal= {arXiv preprint arXiv:hep-lat/0309079},
year = {2014}
}
Comments
3 pages, poster presented at Lattice2003(spectrum), Tsukuba, Japan, July 15-19, 2003