Low-lying 1/2<sup>-</sup> hidden strange pentaquark states in the constituent quark model

Hui Li; Zong-Xiu Wu; Chun-Sheng An; Hong Chen

doi:10.1088/1674-1137/41/12/124104

Chinese Physics C> 2017, Vol. 41> Issue(12) : 124104 DOI: 10.1088/1674-1137/41/12/124104

Low-lying 1/2^- hidden strange pentaquark states in the constituent quark model

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School of Physical Science and Technology, Southwest University, Chongqing 400715, China

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Abstract：
We investigate the spectrum of the low-lying 1/2^- hidden strange pentaquark states, employing the constituent quark model, and looking at two ways within that model of mediating the hyperfine interaction between quarks-Goldstone boson exchange and one gluon exchange. Numerical results show that the lowest 1/2^- hidden strange pentaquark state in the Goldstone boson exchange model lies at~1570 MeV, so this pentaquark configuration may form a notable component in S₁₁(1535) if the Goldstone boson exchange model is applied. This is consistent with the prediction that S₁₁(1535) couples very strongly to strangeness channels.
- quark model ,
- pentaquark states ,
- baryon resonances

References

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Hui Li, Zong-Xiu Wu, Chun-Sheng An and Hong Chen. Low-lying 1/2^- hidden strange pentaquark states in the constituent quark model[J]. Chinese Physics C, 2017, 41(12): 124104. doi: 10.1088/1674-1137/41/12/124104

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Received: 2017-09-02

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Supported by National Natural Science Foundation of China (11675131, 11645002), Chongqing Natural Science Foundation (cstc2015jcyjA00032) and Fundamental Research Funds for the Central Universities (SWU115020)

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通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

Low-lying 1/2^- hidden strange pentaquark states in the constituent quark model

Corresponding author: Chun-Sheng An,

1. School of Physical Science and Technology, Southwest University, Chongqing 400715, China

Received Date: 2017-09-02

Available Online: 2017-12-05

Fund Project: Supported by National Natural Science Foundation of China (11675131, 11645002), Chongqing Natural Science Foundation (cstc2015jcyjA00032) and Fundamental Research Funds for the Central Universities (SWU115020)

Abstract: We investigate the spectrum of the low-lying 1/2^- hidden strange pentaquark states, employing the constituent quark model, and looking at two ways within that model of mediating the hyperfine interaction between quarks-Goldstone boson exchange and one gluon exchange. Numerical results show that the lowest 1/2^- hidden strange pentaquark state in the Goldstone boson exchange model lies at~1570 MeV, so this pentaquark configuration may form a notable component in S₁₁(1535) if the Goldstone boson exchange model is applied. This is consistent with the prediction that S₁₁(1535) couples very strongly to strangeness channels.

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Low-lying 1/2^- hidden strange pentaquark states in the constituent quark model

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Low-lying 1/2- hidden strange pentaquark states in the constituent quark model

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Low-lying 1/2^- hidden strange pentaquark states in the constituent quark model

Low-lying 1/2^- hidden strange pentaquark states in the constituent quark model