A possible NN*(1440) quasi-molecular state
文献类型：期刊论文
| 作者 | Zhao L(赵璐); Shen PN(沈彭年); Zhao, L; Shen, PN; Zhang, YJ; Zou, BS; Zou BS(邹冰松)
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| 刊名 | EUROPEAN PHYSICAL JOURNAL A
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| 出版日期 | 2013 |
| 卷号 | 49期号:5页码:59 |
| 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 |
| WOS记录号 | WOS:000321430600002 |
| 公开日期 | 2016-05-03 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/224405]  |
| 专题 | 高能物理研究所_理论物理室 |
| 推荐引用方式 GB/T 7714 | Zhao L,Shen PN,Zhao, L,et al. A possible NN*(1440) quasi-molecular state[J]. EUROPEAN PHYSICAL JOURNAL A,2013,49(5):59. |
| APA | 赵璐.,沈彭年.,Zhao, L.,Shen, PN.,Zhang, YJ.,...&邹冰松.(2013).A possible NN*(1440) quasi-molecular state.EUROPEAN PHYSICAL JOURNAL A,49(5),59. |
| MLA | 赵璐,et al."A possible NN*(1440) quasi-molecular state".EUROPEAN PHYSICAL JOURNAL A 49.5(2013):59. |
入库方式： OAI收割
来源：高能物理研究所
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