Baryonic Operators for Lattice Simulations.

Edwards, R. ; Fiebig, R. ; Fleming, G. ; Heller, U. M.

Technical Information Center Oak Ridge Tennessee

关键词: Baryons;    Lattice field theory;    Mesons;    Excitation;    Quarks;   

RP-ID  :  DE2005836868

学科分类：工程和技术（综合）

美国|英语

来源: National Technical Reports Library

【 摘 要 】

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.