Eur. Phys. J. C 25, 131-137 (2002)
DOI: 10.1007/s10052-002-0944-8

BRST symmetries in SU(3) linear sigma model

S.-T. Hong^{1, 2} and S.H. Lee<sup>2

1</sup>  Department of Physics and Basic Science Research Institute, Sogang University, C.P.O. Box 1142, Seoul 100-611, Korea
²  Department of Physics and Institute of Physics and Applied Physics, Yonsei University, Seoul 120-749, Korea

(Received: 16 November 2001 / Revised version: 23 February 2002 / Published online: 26 July 2002 )

Abstract
We study the BRST symmetries in the SU(3) linear sigma model which is constructed through the introduction of a novel matrix for the Goldstone boson fields satisfying geometrical constraints embedded in a SU(2) subgroup. To treat these constraints we exploit the improved Dirac quantization scheme. We also discuss phenomenological aspects in the mean field approach to this model.

© Società Italiana di Fisica, Springer-Verlag 2002