Low-lying Omega states with negative parity in an extended quark model with Nambu-Jona-Lasinio interaction
文献类型：期刊论文
| 作者 | An, CS; Zou, BS
|
| 刊名 | PHYSICAL REVIEW C
 |
| 出版日期 | 2014 |
| 卷号 | 89期号:5页码:55209 |
| 关键词 | HYPERFINE INTERACTIONS DYNAMICAL MODEL SUPERCONDUCTIVITY BARYONS FORCES ANALOGY QCD |
| ISSN号 | 0556-2813 |
| 通讯作者 | An, CS (reprint author), Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China. |
| 英文摘要 | Here we investigate mixing of the low-lying three- and five-quark Omega states with spin-parity quantum numbers 1/2(-) and 3/2(-), employing the quark-antiquark creation triggered by Nambu-Jona-Lasinio (NJL) interaction. Wave functions of the three- and five-quark configurations are constructed by using the extended constituent quark model, within which the hyperfine interaction between quarks is also taken to be the NJL-induced one. Numerical results show that the NJL-interaction-induced pair creation results in vanishing mixing between three- and five- quark Omega configurations with spin- parity 1/2(-), but mixing between three- and five-quark 3/2 Omega states should be very strong. The mixing decreases energy of the lowest 3/2(-)Omega state to be 1785 +/- 25 MeV, which is lower than energy of the lowest 1/2(-) state in this model. This is consistent with our previous predictions within the instanton-induced quark-antiquark creation model. |
| 学科主题 | Physics |
| 收录类别 | SCI |
| 资助信息 | National Natural Science Foundation of China [11205164, 11035006, 11121092, 11261130311]; DFG [CRC110]; NSFC [CRC110]; Chinese Academy of Sciences [KJCX2-EW-N01]; Ministry of Science and Technology of China [2009CB825200] |
| 原文出处 | http://dx.doi.org/10.1103/PhysRevC.89.055209 |
| 语种 | 英语 |
| WOS记录号 | WOS:000338040000006 |
| 公开日期 | 2015-06-03 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/15753]  |
| 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 | An, CS,Zou, BS. Low-lying Omega states with negative parity in an extended quark model with Nambu-Jona-Lasinio interaction[J]. PHYSICAL REVIEW C,2014,89(5):55209. |
| APA | An, CS,&Zou, BS.(2014).Low-lying Omega states with negative parity in an extended quark model with Nambu-Jona-Lasinio interaction.PHYSICAL REVIEW C,89(5),55209. |
| MLA | An, CS,et al."Low-lying Omega states with negative parity in an extended quark model with Nambu-Jona-Lasinio interaction".PHYSICAL REVIEW C 89.5(2014):55209. |
入库方式： OAI收割
来源：理论物理研究所
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