| A new $N^{}$ resonance as a hadronic molecular state |
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| 引用本文： | Daisuke Jido,Yoshiko Kanada-En'yo. A new $N^{}$ resonance as a hadronic molecular state[J]. 中国物理 C, 2009, 33(12): 1312-1317 |
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| 作者姓名： | Daisuke Jido Yoshiko Kanada-En'yo |
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| 作者单位： | Yukawa Institute for Theoretical Physics, Kyoto University, Kyoto 606-8502, Japan; |
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| 基金项目： | Supported by Grant for Scientific Research （18540263, 20028004） from Japan Society for the Promotion of Science （JSPS） and from the Ministry of Education, Culture, Sports, Science and Technology （MEXT） of Japan. A part of this work is done under Yukawa International Project for Quark-Hadron Sciences （YIPQS）. The computational calculations of the present work were done by using the supercomputer at YITP The authors would like to thank Professor Akaishi, Dr. Hyodo, Dr. Dotd, Professor Nakano and Professor J.K. Ahn for valuable discussions. |
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| 摘 要： | We report our recent work on a hadronic molecule state of the KKN system with I =1/2 and jR = 1/2＋. We assume that the A（1405） resonance and the scalar mesons, f0（980）, ao（980）, are reproduced as quasi-bound states of KN and KK, respectively. Performing non-relativistic three-body calculations with a variational method for this system, we find a quasibound state of the KIlN system around 1910 MeV below the three-body breakup threshold. This state corresponds to a new baryon resonance of N＊ with JP ： 1/2＋. We find also that this resonance has the cluster structure of the two-body bound states keeping their properties as in the isolated two-particle systems. We also briefly discuss another hadronic molecular state composed by two K and one N, which corresponds to a resonance.
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| 关 键 词： | 分子状态 共振 强子 窑系统 株式会社 计算方法 非相对论 粒子系统 |
| 收稿时间： | 2009-08-07 |
A new N＊ resonance as a hadronic molecular state |
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| Daisuke Jido Yoshiko Kanada-En'yo. A new N＊ resonance as a hadronic molecular state[J]. High Energy Physics and Nuclear Physics, 2009, 33(12): 1312-1317 |
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| Authors: | Daisuke Jido Yoshiko Kanada-En'yo |
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| Affiliation: | Yukawa Institute for Theoretical Physics, Kyoto University, Kyoto 606-8502, Japan |
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| Abstract: | three-body bound state, ∧（1405） resonance, kaon-nucleon intera~tion, variational calculation |
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| Keywords: | three-body bound state ∧（1405） resonance kaon-nucleon intera~tion variational calculation |
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