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P-wave Pentaquark and its Decay in the Quark Model with Instanton Induced Interaction | | Tetsuya Shinozaki
; Makoto Oka
; Sachiko Takeuchi
; | | Date: |
30 Sep 2005 | | Subject: | hep-ph | | Abstract: | P-wave pentaquarks with strangeness +1, I=0 and J^P=1/2^+ are studied in the non-relativistic quark model with instanton induced interaction (III). We present their mass splittings and orbital-spin-isospin-color structures. It is found that decompositions of the wave functions are sensitive to III, while the mass splittings are insensitive. The decay of the lowest energy pentaquark, Theta^+, is found to be suppressed when the contribution of III is increased. Its wave function is dominated by Jaffe-Wilczek-type configuration at large III. | | Source: | arXiv, hep-ph/0510001 | | Services: | Forum | Review | PDF | Favorites | |
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