Five-quark picture of Lambda(1405) in anisotropic lattice QCD
| dc.creator | Ishii, Noriyoshi | |
| dc.creator | Doi, Takumi | |
| dc.creator | Oka, Makoto | |
| dc.creator | Suganuma, Hideo | |
| dc.date | 2007-06-30 | |
| dc.date.accessioned | 2026-07-07T11:41:23Z | |
| dc.date.available | 2026-07-07T11:41:23Z | |
| dc.description | Five-quark (5Q) picture of Lambda(1405) is studied using quenched lattice QCD with an exotic 5Q operator of N\bar{K} type. To discreminate mere N\bar{K} and Σπscattering states, Hybrid Boundary Condition (HBC), a flavor-dependent boundary condition, is imposed on the quark fields along spatial direction. 5Q mass m_{5Q}\simeq 1.89 GeV is obtained after the chiral extrapolation to the physical quark mass region, which is too heavy to be identified with Lambda(1405). Then, Lambda(1405) seems neither a pure 3Q state nor a pure 5Q state, and therefore we present an interesting possibility that Lambda(1405) is a mixed state of 3Q and 5Q states. | |
| dc.description | A talk given at Yukawa International Seminar(YKIS) 2006 NEW FRONTIERS IN QCD --Exotic Hadrons and Hadronic Matter--, Kyoto, Japan, Nov. 20-Dec.8 2006, 4 pages, 2 figures | |
| dc.identifier | https://arxiv.org/abs/0707.0079 | |
| dc.identifier | http://arxiv.org/abs/0707.0079 | |
| dc.identifier | Prog.Theor.Phys.Suppl.168:598-601,2007 | |
| dc.identifier | doi:10.1143/PTPS.168.598 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/200519 | |
| dc.subject | High Energy Physics - Lattice | |
| dc.title | Five-quark picture of Lambda(1405) in anisotropic lattice QCD | |
| dc.type | text |