Structure of light and heavy pentaquarks

Details Structure of light and heavy pentaquarks Structure of light and heavy pentaquarks

2005-04-07

arxiv.org/abs/hep-ph/0504056v3

Int.J.Mod.Phys. A20 (2005) 1797-1802

Physics

High Energy Physics

High Energy Physics - Phenomenology

6 pages, 2 figures, Plenary talk at the 10th International Symposium on Meson-Nucleon Physics and the Structure of the Nucleon

Scientific paper

10.1142/S0217751X05023359

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)$_F$ breaking. Masses of the charmed antisextet pentaquarks are predicted within the same model.

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