Baryon-baryon interactions in the SU6 quark model and their applications to light nuclear systems
| dc.creator | Fujiwara, Y. | |
| dc.creator | Suzuki, Y. | |
| dc.creator | Nakamoto, C. | |
| dc.date | 2006-07-10 | |
| dc.date.accessioned | 2026-07-07T11:07:32Z | |
| dc.date.available | 2026-07-07T11:07:32Z | |
| dc.description | Interactions between the octet-baryons (B8) in the spin-flavor SU6 quark model are investigated in a unified coupled-channels framework of the resonating-group method (RGM). The interaction Hamiltonian for quarks consists of the phenomenological confinement potential, the color Fermi-Breit interaction with explicit flavor-symmetry breaking (FSB), and effective-meson exchange potentials of scalar-, pseudoscalar- and vector-meson types. The model parameters are determined to reproduce the properties of the nucleon-nucleon (NN) system and the low-energy cross section data for the hyperon-nucleon (YN) interactions. The NN phase shifts and many observables for the NN and YN interactions are nicely reproduced. Properties of these B8 B8 interactions are analyzed through the G-matrix calculations. The B8 B8 interactions are then applied to some of few-baryon systems and light Lambda-hypernuclei in a three-cluster Faddeev formalism using two-cluster RGM kernels. An application to the three-nucleon system shows that the quark-model NN interaction can give a sufficient triton binding energy with little room for the three-nucleon force. The hypertriton Faddeev calculation indicates that the attraction of the Lambda N interaction in the 1S0 state is only slightly more attractive than that in the 3S1 state. In the application to the alpha alpha Lambda system, the energy spectrum of 9 Lambda Be is well reproduced using the alpha alpha RGM kernel. The very small spin-orbit splitting of the 9 Lambda Be excited states is also discussed. In the Lambda Lambda alpha Faddeev calculation, the NAGARA event for 6 Lambda Lambda He is found to be consistent with the quark-model Lambda Lambda interaction. | |
| dc.description | 77 pages, 33 figures, review article to be published in Prog. Part. Nucl. Phys | |
| dc.identifier | https://arxiv.org/abs/nucl-th/0607013 | |
| dc.identifier | http://arxiv.org/abs/nucl-th/0607013 | |
| dc.identifier | Prog.Part.Nucl.Phys.58:439-520,2007 | |
| dc.identifier | doi:10.1016/j.ppnp.2006.08.001 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/189871 | |
| dc.subject | Nuclear Theory | |
| dc.title | Baryon-baryon interactions in the SU6 quark model and their applications to light nuclear systems | |
| dc.type | text |