The $\Omega$ and $\Sigma^0$-$\Lambda$ transition magnetic moments in QCD sum rules

((1) Physics department; 2); (2) Institute of Theoretical Physics; (3) Physics Department; Academia Sinica; National Taiwan University); Peking University; Shi-Lin Zhu(1; W.-Y.P. Hwang(3); Ze-sen Yang(1)

arxiv: hep-ph/9802322 · v1 · submitted 1998-02-14 · ✦ hep-ph

The Ω and Sigma⁰-Λ transition magnetic moments in QCD sum rules

Shi-Lin Zhu(1 , 2) , W.-Y.P. Hwang(3) , Ze-sen Yang(1) , ((1) Physics department , Peking University , (2) Institute of Theoretical Physics , Academia Sinica

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(3) Physics Department National Taiwan University)

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classification ✦ hep-ph

keywords lambdamagneticomegasigmamomentmomentsrulestransition

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The method of QCD sum rules in the presence of external elctromagnetic fields is used to calculate the $\Omega$ magnetic moment $\mu_{\Omega^-}$ and $\Sigma^0$-$\Lambda$ transition magnetic moment $\mu_{\Sigma^0\Lambda}$, with the susceptibilities obtained previously from the study of octet baryon magnetic moments. The results $\mu_{\Omega^-}=-1.92\mu_N$ and $\mu_{\Sigma^0\Lambda}=1.5\mu_N$ are in good agreement with the recent experimental data.

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The Ω and Sigma⁰-Λ transition magnetic moments in QCD sum rules

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