Spin-3/2 Nucleon and Delta Baryons in Lattice QCD
| dc.creator | Zanotti, J. M. | |
| dc.creator | Leinweber, D. B. | |
| dc.creator | Williams, A. G. | |
| dc.creator | Zhang, J. B. | |
| dc.creator | Melnitchouk, W. | |
| dc.creator | Choe, S. | |
| dc.date | 2003-04-01 | |
| dc.date.accessioned | 2026-07-07T10:28:38Z | |
| dc.date.available | 2026-07-07T10:28:38Z | |
| dc.description | We present first results for masses of spin-3/2 N and Delta baryons in lattice QCD using Fat-Link Irrelevant Clover (FLIC) fermions. Spin-3/2 interpolating fields providing overlap with both spin-3/2 and spin-1/2 states are considered. In the isospin-1/2 sector, we observe, after appropriate spin and parity projection, a strong signal for the J^P=3/2^- state together with a weak but discernible signal for the 3/2^+ state with a mass splitting near that observed experimentally. We also find good agreement between the 1/2^+/- masses and earlier nucleon mass simulations with the standard spin-1/2 interpolating field. For the isospin-3/2 Delta states, clear mass splittings are observed between the various 1/2^+/- and 3/2^+/- channels, with the calculated level orderings in good agreement with those observed empirically. | |
| dc.description | 17 pages, 8 figures, 2 tables | |
| dc.identifier | https://arxiv.org/abs/hep-lat/0304001 | |
| dc.identifier | http://arxiv.org/abs/hep-lat/0304001 | |
| dc.identifier | Phys.Rev.D68:054506,2003 | |
| dc.identifier | doi:10.1103/PhysRevD.68.054506 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/177515 | |
| dc.subject | High Energy Physics - Lattice | |
| dc.title | Spin-3/2 Nucleon and Delta Baryons in Lattice QCD | |
| dc.type | text |