A possible NN*(1440) quasi-molecular state
文献类型：期刊论文
| 作者 | Zou, BS
|
| 刊名 | EUROPEAN PHYSICAL JOURNAL A
 |
| 出版日期 | 2013 |
| 卷号 | 49期号:5页码:59 |
| 关键词 | MESON ENHANCEMENTS |
| ISSN号 | 1434-6001 |
| 通讯作者 | Zhao, L (reprint author), Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China. |
| 英文摘要 | Inspired by the recent observation of a narrow resonance-like structure around 2360 MeV in the pn -> d pi(0)pi(0) cross section, the possibility of forming a NN*(1440) quasi-molecular state is investigated by using a meson exchange model in which the pi, sigma, rho and omega exchanges in t- and u-channels are considered. By adopting the coupling constants extracted from the relevant NN scattering and N*(1440) decay data, it is found that a deuteron-like quasi-molecular state of NN*(1440) with a binding energy in the range of 2 similar to 67 MeV can be formed. Therefore, it is speculated that the observed structure around 2360 MeV might be or may have a large component of the NN*(1440) quasi-molecular state. |
| 学科主题 | Physics |
| 收录类别 | SCI |
| 资助信息 | National Natural Science Foundation of China [10975038, 11035006, 11165005, 11121092, 11261130311]; DFG [CRC110]; NSFC; Chinese Academy of Sciences [KJCX2-EW-N01]; Ministry of Science and Technology of China [2009CB825200] |
| 原文出处 | http://dx.doi.org/10.1140/epja/i2013-13059-x |
| 语种 | 英语 |
| WOS记录号 | WOS:000321430600002 |
| 公开日期 | 2014-04-25 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/15376]  |
| 专题 | 理论物理研究所_理论物理所1978-2010年知识产出 |
| 推荐引用方式 GB/T 7714 | Zou, BS. A possible NN*(1440) quasi-molecular state[J]. EUROPEAN PHYSICAL JOURNAL A,2013,49(5):59. |
| APA | Zou, BS.(2013).A possible NN*(1440) quasi-molecular state.EUROPEAN PHYSICAL JOURNAL A,49(5),59. |
| MLA | Zou, BS."A possible NN*(1440) quasi-molecular state".EUROPEAN PHYSICAL JOURNAL A 49.5(2013):59. |
入库方式： OAI收割
来源：理论物理研究所
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