Structure of light and heavy pentaquarks
arXiv:hep-ph/0504056 · doi:10.1142/S0217751X05023359
Abstract
Light and heavy pentaquarks are described within a constituent quark model based on a spin-flavor hyperfine interaction. In this model the lowest state acquires positive parity. The masses of the light antidecuplet members are calculated dynamically using a variational method. It is shown that the octet and antidecuplet states with the same quantum numbers mix ideally due to SU(3) breaking. Masses of the charmed antisextet pentaquarks are predicted within the same model.
6 pages, 2 figures, Plenary talk at the 10th International Symposium on Meson-Nucleon Physics and the Structure of the Nucleon (MENU04), Beijing, August 29 - September 4, 2004, reference added