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