Transition properties of low-lying resonances in a relativistic quark model with a meson cloud
文献类型：期刊论文
| 作者 | Dong YB(董宇兵) ; Dong, YB; Faessler, A; Shimizu, K
|
| 刊名 | NUCLEAR PHYSICS A
 |
| 出版日期 | 2002 |
| 卷号 | 705期号:1-2页码:#REF! |
| 关键词 | relativistic quark model coupling constants pion cloud decay width Delta(1232) P-11 (1440) |
| 通讯作者 | Dong, YB (reprint author), CCAST, World Lab, POB 8730, Beijing 100080, Peoples R China. |
| 英文摘要 | Based on a relativistic quark model approach, the transition properties of two positive-parity low-lying nucleon resonances Delta(1232) and Roper N(1440)p(11) and of Delta*(1600)P-33 resonance are investigated. The coupling constants gpiNN, gpiNDelta, gpiNN* and gpiNDelta* are also estimated. Two different ways to remove the center-of-mass motion are discussed. Our results of the relativistic approaches with and without the center-of-mass correction are compared to those of the nonrelativistic constituent quark model and to experimental data. Moreover, the effect of the pion cloud on the calculated observables is studied. Better results for the transition properties of the Delta(1232) resonance are obtained by taking the pion cloud into account explicitly. (C) 2002 Elsevier Science B.V. All rights reserved. |
| 学科主题 | Physics |
| 类目[WOS] | Physics, Nuclear |
| 收录类别 | SCI |
| WOS记录号 | WOS:000176944500008 |
| 公开日期 | 2016-05-03 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/226543]  |
| 专题 | 高能物理研究所_理论物理室 |
| 推荐引用方式 GB/T 7714 | Dong YB,Dong, YB,Faessler, A,et al. Transition properties of low-lying resonances in a relativistic quark model with a meson cloud[J]. NUCLEAR PHYSICS A,2002,705(1-2):#REF!. |
| APA | 董宇兵,Dong, YB,Faessler, A,&Shimizu, K.(2002).Transition properties of low-lying resonances in a relativistic quark model with a meson cloud.NUCLEAR PHYSICS A,705(1-2),#REF!. |
| MLA | 董宇兵,et al."Transition properties of low-lying resonances in a relativistic quark model with a meson cloud".NUCLEAR PHYSICS A 705.1-2(2002):#REF!. |
入库方式： OAI收割
来源：高能物理研究所
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