Chiral Baryon Fields in the QCD Sum Rule
High Energy Physics - Phenomenology
2012-10-24 v2 High Energy Physics - Lattice
Abstract
We study the structure of local baryon fields using the method of QCD sum rule. We only consider the single baryon fields and calculate their operator product expansions. We find that the octet baryon fields belonging to the chiral representations [(3,3*)+(3*,3)] and [(8,1)+(1,8)] and the decuplet baryon fields belonging to the chiral representations [(3,6)+(6,3)] lead to the baryon masses which are consistent with the experimental data of ground baryon masses. We also calculate their decay constants, check our normalizations for baryon fields in PRD81:054002(2010) and find that they are well-defined.
Keywords
Cite
@article{arxiv.1203.3260,
title = {Chiral Baryon Fields in the QCD Sum Rule},
author = {Hua-Xing Chen},
journal= {arXiv preprint arXiv:1203.3260},
year = {2012}
}
Comments
12 pages, 6 figure, 1 table, accepted by EPJC