The possible $Σ^0$-$Λ$ mixing in QCD sum rules

Details The possible $Σ^0$-$Λ$ mixing in QCD sum rules The possible $Σ^0$-$Λ$ mixing in QCD sum rules

1998-02-14

arxiv.org/abs/hep-ph/9802321v1

Phys.Rev. D57 (1998) 1524-1526

Physics

High Energy Physics

High Energy Physics - Phenomenology

Scientific paper

10.1103/PhysRevD.57.1524

We calculate the on-shell $\Sigma^0$-$\Lambda$ mixing parameter $\theta$ with
the method of QCD sum rule. Our result is $\theta (m^2_{\Sigma^0}) =(-)(0.5\pm
0.1)$MeV. The electromagnetic interaction is not included.

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