Quark model approach to the $η$ meson electroproduction on the proton
| dc.creator | Zhao, Q. | |
| dc.creator | Saghai, B. | |
| dc.creator | Li, Z. -P. | |
| dc.date | 2000-11-19 | |
| dc.date | 2002-03-26 | |
| dc.date.accessioned | 2026-07-07T10:54:37Z | |
| dc.date.available | 2026-07-07T10:54:37Z | |
| dc.description | A recently developed quark model approach to pseudoscalar meson photoproduction is extended to electroproduction process for the $η$ meson in the kinematics of momentum transfer $Q^2 \leq$ 4 (GeV/c)$^2$ and total center of mass energy $W \leq$ 1.6 GeV. Existing data are well reproduced and the roles of the $S_{11}(1535)$ and $D_{13}(1520)$ resonances are closely investigated. In the study of the longitudinal excitation of the $S_{11}(1535)$ resonance, a reliable constraint on the $S_{11}(1535)$ properties is obtained by cleanly removing the electromagnetic transition from the $γ_{(v)} p \to S_{11}(1535) \to ηp$ amplitude. Thus, the fitted quantities can be determined with an uncertainty of about 15%. This could be the first direct constraint on the $S_{11}(1535)$ properties in theory. | |
| dc.description | 31 pages, 9 figures; Substantially modified version, to appear on Jour. of Phys. G | |
| dc.identifier | https://arxiv.org/abs/nucl-th/0011069 | |
| dc.identifier | http://arxiv.org/abs/nucl-th/0011069 | |
| dc.identifier | J.Phys.G28:1293-1312,2002 | |
| dc.identifier | doi:10.1088/0954-3899/28/6/312 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/185855 | |
| dc.subject | Nuclear Theory | |
| dc.title | Quark model approach to the $η$ meson electroproduction on the proton | |
| dc.type | text |