The Sigma_c and Lamda_c magnetic moments from QCD spectral sum rules
High Energy Physics - Phenomenology
2009-10-30 v1
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.
Cite
@article{arxiv.hep-ph/9708411,
title = {The Sigma_c and Lamda_c magnetic moments from QCD spectral sum rules},
author = {Shi-Lin Zhu and Ze-Sen Yang and W-Y. P. Hwang},
journal= {arXiv preprint arXiv:hep-ph/9708411},
year = {2009}
}
Comments
Latex file, two postscript figures