eta-production on the proton via electromagnetic and hadronic probes
文献类型：会议论文
| 作者 | Saghai, B.1; Durand, J.1,2; Julia-Diaz, B.2,3,4; He Jun5 ; Lee, T. -S. H.2,6; Sato, T.2,7
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| 出版日期 | 2009-12 |
| 关键词 | multichannel scattering meson production baryon resonances |
| 卷号 | 33 |
| 期号 | 12 |
| 页码 | 1175-1182 |
| 英文摘要 | The reactions pi(-)p -> eta n and gamma p -> eta p are investigated within a dynamical coupled-channels model of meson production reactions in the nucleon resonance region The meson-baryon channels included are pi N, pi Delta, sigma N, and rho N The direct eta-photoproduction process is studied within a formalism based on a chiral constituent quark model approach, complemented with a one-gluon-exchange mechanism, to take into account the breakdown of the SU(6)circle times O(3) symmetry In the models search, the following known nucleon resonances are embodied S-11(1535), S-11(1650), P-11(1440), P-11(1710), P-13(1720), D-13(1520), D-13(1700), D-15(1675), and F-15(1680). Data for the pi(-)p -> eta n reaction from threshold up to a total center-of-mass energy of W approximate to 2 GeV are satisfactorily reproduced For the photoproduction channel: two additional higher mass known resonances, P-13(1900) and F-15(2000), are also considered However, reproducing the data for gamma p -> eta p requires, within our approach, two new nucleon resonances, for which we extract, mass and width |
| 会议录 | CHINESE PHYSICS C
 |
| 会议录出版者 | CHINESE PHYSICAL SOC |
| 会议录出版地 | P O BOX 603, BEIJING 100080, PEOPLES R CHINA |
| 语种 | 英语 |
| WOS研究方向 | Physics |
| WOS记录号 | WOS:000272577200020 |
| 源URL | [http://119.78.100.186/handle/113462/57246]  |
| 专题 | 中国科学院近代物理研究所 |
| 通讯作者 | Saghai, B. |
| 作者单位 | 1.CEA Saclay, DSM, Irfu, F-91191 Gif Sur Yvette, France 2.Thomas Jefferson Natl Accelerator Facil, EBAC, Newport News, VA 22901 USA 3.Univ Barcelona, Inst Ciencies Cosmos, E-08028 Barcelona, Spain 4.Univ Barcelona, Dept Estructura & Constituents Mat, E-08028 Barcelona, Spain 5.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China 6.Argonne Natl Lab, Div Phys, Argonne, IL 60439 USA 7.Osaka Univ, Dept Phys, Osaka 5600043, Japan |
| 推荐引用方式 GB/T 7714 | Saghai, B.,Durand, J.,Julia-Diaz, B.,et al. eta-production on the proton via electromagnetic and hadronic probes[C]. 见:. |
入库方式： OAI收割
来源：近代物理研究所
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