POSSIBLE SIGMA(0)-LAMBDA MIXING IN THE QCD SUM-RULE

Authors
ZHU SL HWANG WYP YANG ZS
Citation
Sl. Zhu et al., POSSIBLE SIGMA(0)-LAMBDA MIXING IN THE QCD SUM-RULE, Physical review. D. Particles and fields, 57(3), 1998, pp. 1524-1526
Citations number
24
Categorie Soggetti
Physics, Particles & Fields
Journal title
Physical review. D. Particles and fields → ACNP
ISSN journal
05562821
Volume
57
Issue
3
Year of publication
1998
Pages
1524 - 1526
Database
ISI
SICI code
0556-2821(1998)57:3<1524:PSMITQ>2.0.ZU;2-L
Abstract
We calculate the on-shell Sigma(0)-Lambda mixing parameter theta with the method of the QCD sum rule. Our result is theta(m(Sigma 0)(2)) = ( -)(0.5 +/- 0.1) MeV. The electromagnetic interaction is not included.