Low-lying Seven-quark qqq(q¯q)2 States in Baryon Spectrum
doi: 10.11804/NuclPhysRev.30.01.010
- Received Date: 1900-01-01
- Rev Recd Date: 1900-01-01
- Publish Date: 2013-03-20
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Key words:
- quark model /
- multiquark components /
- baryon resonance
Abstract: The low-lying energy spectra of 7-quark systems qqq(q¯q)2 is investigated with the schematic flavor-spin interaction, as an extension of the qqqq¯q five quark model. The lowest qqq(q¯q)2 state with an approximate energy 2.1 GeV and the spin-parity JP =1/2+ or JP =1/2-, has been predicted with the parameters used in the five quark system.Because of the overlap with the corresponding qqq and qqqq¯q states above 2 GeV, it is possible for the high excited baryon-resonances to have substantial qqq(q¯q)2 admixtures.
Citation: | YUAN Si-gang. Low-lying Seven-quark qqq(q¯q)2 States in Baryon Spectrum[J]. Nuclear Physics Review, 2013, 30(1): 10-16. doi: 10.11804/NuclPhysRev.30.01.010 |