| Low-lying Omega states with negative parity in an extended quark model with Nambu-Jona-Lasinio interaction |
| An CS(安春生) ; Zou BS(邹冰松) ; An, CS; Zou, BS
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| 2014
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发表期刊 | PHYSICAL REVIEW C
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卷号 | 89期号:5页码:55209 |
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. |
学科领域 | Physics
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DOI | 10.1103/PhysRevC.89.055209
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收录类别 | SCI
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WOS记录号 | WOS:000338040000006
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引用统计 |
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文献类型 | 期刊论文
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条目标识符 | http://ir.ihep.ac.cn/handle/311005/225258
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专题 | 理论物理室
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推荐引用方式 GB/T 7714 |
An CS,Zou BS,An, CS,et al. 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.
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APA |
安春生,邹冰松,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.
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MLA |
安春生,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.
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