P-wave pentaquark and its decay in the quark model with instanton induced interaction
Journal Article
·
· Physical Review. D, Particles Fields
- Department of Physics, H-27, Tokyo Institute of Technology, Meguro, Tokyo 152-8551 (Japan)
- Japan College of Social Work, Kiyose 204-8555 (Japan)
P-wave pentaquarks with strangeness +1, I=0, and J{sup P}=1/2{sup +} are studied in the nonrelativistic 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}{sup +}, is found to be suppressed when the contribution of III is increased. Spin structure of the dominant components of the wave function is studied.
- OSTI ID:
- 20871117
- Journal Information:
- Physical Review. D, Particles Fields, Vol. 74, Issue 5; Other Information: DOI: 10.1103/PhysRevD.74.054029; (c) 2006 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2821
- Country of Publication:
- United States
- Language:
- English
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