eta photoproduction on the proton in a chiral constituent quark approach via a one-gluon-exchange model
文献类型：期刊论文
| 作者 | He, Jun2; Saghai, B.2; Li, Zhenping3 |
| 刊名 | PHYSICAL REVIEW C
 |
| 出版日期 | 2008-09-01 |
| 卷号 | 78期号:3页码:11 |
| ISSN号 | 0556-2813 |
| DOI | 10.1103/PhysRevC.78.035204 |
| 英文摘要 | A formalism based on a chiral quark model (chi QM) approach complemented with a one-gluon-exchange model, to take into account the breakdown of the SU(6)circle times O(3) symmetry, is presented. The configuration mixing of wave functions for nucleon and resonances are derived. With few adjustable parameters, differential cross-section and polarized-beam asymmetry for the gamma p -> eta p process are calculated and successfully compared with the data in the center-of-mass energy range from threshold to 2 GeV. The known resonances S(11)(1535), S(11)(1650), P(13)(1720), D(13)(1520), and F(15)(1680), as well as two new S(11) and D(15) resonances, are found to be dominant in the reaction mechanism. Moreover, connections among the scattering amplitudes of the chi QM approach and the helicity amplitudes, as well as decay widths of resonances, are established. Possible contributions from the so-called missing resonances are investigated and found to be negligible. |
| WOS关键词 | SINGLE-PION PHOTOPRODUCTION ; HYPERFINE INTERACTIONS ; BARYON RESONANCES ; NONSTRANGE BARYONS ; ALGEBRAIC MODELS ; HADRON STRUCTURE ; S-11 RESONANCES ; DECAYS ; REGION ; CHROMODYNAMICS |
| WOS研究方向 | Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000259692300070 |
| 出版者 | AMER PHYSICAL SOC |
| 公开日期 | 2010-10-29 |
| 源URL | [http://ir.imp.cas.cn/handle/113462/5627]  |
| 专题 | 近代物理研究所_近代物理研究所知识存储（2010之前） |
| 通讯作者 | He, Jun |
| 作者单位 | 1.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China 2.CEA Saclay, DSM IRFU, Inst Rech Lois Fondamentales Univers, F-91191 Gif Sur Yvette, France 3.Univ Maryland, Dept Comp & Informat Sci, Adelphi, MD 20783 USA |
| 推荐引用方式 GB/T 7714 | He, Jun,Saghai, B.,Li, Zhenping. eta photoproduction on the proton in a chiral constituent quark approach via a one-gluon-exchange model[J]. PHYSICAL REVIEW C,2008,78(3):11. |
| APA | He, Jun,Saghai, B.,&Li, Zhenping.(2008).eta photoproduction on the proton in a chiral constituent quark approach via a one-gluon-exchange model.PHYSICAL REVIEW C,78(3),11. |
| MLA | He, Jun,et al."eta photoproduction on the proton in a chiral constituent quark approach via a one-gluon-exchange model".PHYSICAL REVIEW C 78.3(2008):11. |
入库方式： OAI收割
来源：近代物理研究所
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