Baryon Operators and Baryon Spectroscopy
高能物理 - 格点
2008-11-26 v1
摘要
The issues involved in a determination of the baryon resonance spectrum in lattice QCD are discussed. The variational method is introduced and the need to construct a sufficient basis of interpolating operators is emphasised. The construction of baryon operators using group-theory techniques is outlined. We find that the use both of quark-field smearing and link-field smearing in the operators is essential firstly to reduce the coupling of operators to high-frequency modes and secondly to reduce the gauge-field fluctuations in correlators. We conclude with a status report of our current investigation of baryon spectroscopy.
引用
@article{arxiv.hep-lat/0601034,
title = {Baryon Operators and Baryon Spectroscopy},
author = {S. Basak and R. G. Edwards and G. T. Fleming and U. M. Heller and A. Lichtl and C. Morningstar and D. G. Richards and I. Sato and S. Wallace},
journal= {arXiv preprint arXiv:hep-lat/0601034},
year = {2008}
}
备注
Invited talk at Workshop on Computational Hadron Physics, Cyprus, Sept. 14-17, 2005