Combined study of gamma p ->eta p and pi(-)p ->eta n in a chiral constituent quark approach
文献类型：期刊论文
| 作者 | He, Jun1 ; Saghai, B.2
|
| 刊名 | PHYSICAL REVIEW C
 |
| 出版日期 | 2009-07-01 |
| 卷号 | 80期号:1页码:12 |
| ISSN号 | 0556-2813 |
| DOI | 10.1103/PhysRevC.80.015207 |
| 英文摘要 | Within a chiral constituent quark model approach, eta-meson production on the proton via electromagnetic and hadron probes is studied. With few parameters, the differential cross section and polarized beam asymmetry for gamma p ->eta p and differential cross section for pi(-)p ->eta n processes are calculated and successfully compared with the data in the center-of-mass energy range from threshold up to 2 GeV. The five known resonances S-11(1535), S-11(1650), P-13(1720), D-13(1520), and F-15(1680) are found to be dominant in the reaction mechanisms in both channels. Possible roles played by new resonances are also investigated; and in the photoproduction channel, significant contribution from S-11 and D-15 resonances, with masses around 1715 and 2090 MeV, respectively, are deduced. For the so-called missing resonances, no evidence is found within the investigated reactions. The helicity amplitudes and decay widths of N-*->pi N, eta N are also presented and found to be consistent with the Particle Data Group values. |
| WOS关键词 | TOTAL CROSS SECTIONS ; PI-P REACTIONS ; ETA-PHOTOPRODUCTION ; BARYON RESONANCES ; HYPERFINE INTERACTIONS ; CHARGE-EXCHANGE ; S-11 RESONANCES ; MEV-C ; MODEL ; PROTON |
| WOS研究方向 | Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000268618500066 |
| 出版者 | AMER PHYSICAL SOC |
| 公开日期 | 2010-10-29 |
| 源URL | [http://ir.imp.cas.cn/handle/113462/5303]  |
| 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 |
| 推荐引用方式 GB/T 7714 | He, Jun,Saghai, B.. Combined study of gamma p ->eta p and pi(-)p ->eta n in a chiral constituent quark approach[J]. PHYSICAL REVIEW C,2009,80(1):12. |
| APA | He, Jun,&Saghai, B..(2009).Combined study of gamma p ->eta p and pi(-)p ->eta n in a chiral constituent quark approach.PHYSICAL REVIEW C,80(1),12. |
| MLA | He, Jun,et al."Combined study of gamma p ->eta p and pi(-)p ->eta n in a chiral constituent quark approach".PHYSICAL REVIEW C 80.1(2009):12. |
入库方式： OAI收割
来源：近代物理研究所
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