Re-study of nucleon pole contribution in J/psi -> N(N)over-bar pi decay
文献类型：期刊论文
| 作者 | Zong YY(宗媛媛); Shen PN(沈彭年); Zou BS(邹冰松) ; Zong, YY; Shen, PN; Zou, BS; Liu, JF; Liang, WH
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| 刊名 | COMMUNICATIONS IN THEORETICAL PHYSICS
 |
| 出版日期 | 2006 |
| 卷号 | 46期号:3页码:507-513 |
| 关键词 | J/psi decay form factor |
| 通讯作者 | Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China ; Guangxi Normal Univ, Dept Phys, Guilin 541004, Peoples R China ; Natl Lab Heavy Ion Accelerator, Ctr Theoret Nucl Phys, Lanzhou 730000, Peoples R China ; Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China |
| 英文摘要 | Were-study nucleon pole contribution in J/psi -> N (N) over bar pi decays by including the imaginary part for the propagator of the off-shell nucleon with energy above pi N threshold. It is found that when including the imaginary part in the propagator, the branching ratio of the decay width will descend about 11% compared with the result without including the imaginary part, no matter whether including the off-shell form factors or not. It also leads to a phase of up to 25 degrees for the off-shell nucleon propagator at invariant mass around 1400 MeV. This effect needs to be considered for detailed partial wave analysis of N-* resonances around this mass region. |
| 学科主题 | Physics |
| 类目[WOS] | Physics, Multidisciplinary |
| 研究领域[WOS] | Physics |
| 原文出处 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000240609800021 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/237755]  |
| 专题 | 高能物理研究所_理论物理室 中国科学院高能物理研究所_技术发展与经营管理处 |
| 作者单位 | 中国科学院高能物理研究所 |
| 推荐引用方式 GB/T 7714 | Zong YY,Shen PN,Zou BS,et al. Re-study of nucleon pole contribution in J/psi -> N(N)over-bar pi decay[J]. COMMUNICATIONS IN THEORETICAL PHYSICS,2006,46(3):507-513. |
| APA | 宗媛媛.,沈彭年.,邹冰松.,Zong, YY.,Shen, PN.,...&Liang, WH.(2006).Re-study of nucleon pole contribution in J/psi -> N(N)over-bar pi decay.COMMUNICATIONS IN THEORETICAL PHYSICS,46(3),507-513. |
| MLA | 宗媛媛,et al."Re-study of nucleon pole contribution in J/psi -> N(N)over-bar pi decay".COMMUNICATIONS IN THEORETICAL PHYSICS 46.3(2006):507-513. |
入库方式： OAI收割
来源：高能物理研究所
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