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gKNΛ andgKNΣfrom QCD sum rules

Authors :
Su Houng Lee
Seungho Choe
Myung-Ki Cheoun
Source :
Physical Review C. 53:1363-1367
Publication Year :
1996
Publisher :
American Physical Society (APS), 1996.

Abstract

{ital g}{sub {ital KN}}{Lambda} and {ital g}{sub {ital KN}{Sigma}} are calculated using a QCD sum rule motivated method used by Reinders, Rubinstein, and Yazaki to extract hadron couplings to Goldstone bosons. The SU(3) symmetry breaking effects are taken into account by including the contributions from the strange quark mass and assuming different values for the strange and the up-down quark condensates. We find {ital g}{sub {ital KN}}{Lambda}/{radical}4{pi}={minus}1.96 and {ital g}{sub {ital KN}{Sigma}}/{radical}4{pi}=0.33. {copyright} {ital 1996 The American Physical Society.}

Details

ISSN :
1089490X and 05562813
Volume :
53
Database :
OpenAIRE
Journal :
Physical Review C
Accession number :
edsair.doi...........c92312c27747aece7e3223764fc1574d
Full Text :
https://doi.org/10.1103/physrevc.53.1363