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Couplings of pions with heavy baryons from light-cone QCD sum rules in the leading order of HQET

Shi-Lin Zhu, Yuan-Ben Dai

hep-pharXiv:hep-ph/9802226

Abstract

The couplings of pions with heavy baryons g2 (Σ*, Σ) and g3(Σ*, Λ) are studied with light-cone QCD sum rules in the leading order of heavy quark effective theory. Both sum rules are stable. Our results are g2=(1.56 0.3), g3=(0.94 0.06).

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