arXiv:hep-ph/9708411·v1·High Energy Physics — Phenomenology
The Sigma_c and Lamda_c magnetic moments from QCD spectral sum rules
Shi-Lin Zhu🇨🇳 · Ze-Sen Yang🇨🇳 · W-Y. P. Hwang🇹🇼
Abstract
We use QCD spectral sum rules to extract the Sigma_c and Lambda_c magnetic moments. The elctromagnetic field is treated as the external field. We adopt the value of the susceptibility chi=-4.5 GeV^{-2}, which is determined from an overall analysis of the octet baryon magnetic moments. Our result for Sigma_c is in agreement with the quark model prediction, while slight deviation exists from the Lambda_c.
Comments: Latex file, two postscript figures