Physics – Nuclear Physics – Nuclear Theory
Scientific paper
2009-03-11
Prog. Theor. Phys. 122 (2009), 1035-1044
Physics
Nuclear Physics
Nuclear Theory
9 pages, 6 figures
Scientific paper
10.1143/PTP.122.1035
The chiral version of the QMC model, in which the effect of gluon and pion exchanges is included self-consistently, is applied to the hyperons in a nuclear medium. The hyperfine interaction due to the gluon exchange plays an important role in the in-medium baryon spectra, while the pion-cloud effect is relatively small. At the quark mean-field level, the $\Lambda$ feels more attractive force than the \Sigma or \Xi in matter.
Miyatsu Tsuyoshi
Saito Katsuhiko
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