A Study of Pentaquark Θ State in Chiral Quark Model

ZHANG Zong-ye; HUANG Fei; YU You-wen; ZOU Bing-song

doi:10.11804/NuclPhysRev.21.02.077

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Article Navigation > Nuclear Physics Review > 2004 > 21(2): 77-80

ZHANG Zong-ye, HUANG Fei, YU You-wen, ZOU Bing-song. A Study of Pentaquark Θ State in Chiral Quark Model[J]. Nuclear Physics Review, 2004, 21(2): 77-80. doi: 10.11804/NuclPhysRev.21.02.077

Citation:

ZHANG Zong-ye, HUANG Fei, YU You-wen, ZOU Bing-song. A Study of Pentaquark Θ State in Chiral Quark Model[J]. Nuclear Physics Review, 2004, 21(2): 77-80. doi: 10.11804/NuclPhysRev.21.02.077

A Study of Pentaquark Θ State in Chiral Quark Model

doi: 10.11804/NuclPhysRev.21.02.077

Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100039, China

Received Date: 1900-01-01
Rev Recd Date: 1900-01-01
Publish Date: 2004-06-20

Abstract

The structure of the pentaquark state uudd is studied in the chiral quark model. Four configurations of Jπ=(1/2)- and four of Jπ=(1/2)+ are considered. The results show that the isospin T=0 state is always the lowest one for both Jπ=(1/2)- and Jπ=(1/2)+ cases in various models. But the theoretical
value of the lowest one is still about 250 - 300 MeV higher than the experimental mass of Θ.
- pentaquark state,
- quark model,
- chiral symmetry
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沈阳化工大学材料科学与工程学院沈阳 110142

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