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The small axial charge of the N(1535)-resonance
An CS(安春生); An, CS; Riska, DO
2008
发表期刊EUROPEAN PHYSICAL JOURNAL A
卷号37期号:3页码:#REF!
通讯作者An, CS (reprint author), CAS, Inst High Energy Phys, POB 918, Beijing 10049, Peoples R China.
文章类型Article
摘要There is a natural cancellation between the contributions of the qqq and qqqq (p) over bar components to the axial charge of the N(1535)-resonance. While the probability of the former is larger than that of the latter, its coefficient in the axial charge expression is exceptionally small. The magnitude of two of the corresponding coefficients of the qqqq (q) over bar components is in contrast large and has the opposite sign. This result provides a phenomenological illustration of the recent unquenched lattice calculation result that the axial charge of the N(1535)-resonance is very small, if not vanishing (T.T. Takahashi, T. Kunihiro, arXiv: 0801.4707 [hep-lat]). The result sets an upper limit on the magnitude of the probability of qqqq (q) over bar components as well.
学科领域Physics
DOI10.1140/epja/i2008-10642-2
收录类别SCI
WOS类目Physics, Nuclear ; Physics, Particles & Fields
WOS记录号WOS:000259580200001
引用统计
被引频次:16[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/227277
专题理论物理室
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An CS,An, CS,Riska, DO. The small axial charge of the N(1535)-resonance[J]. EUROPEAN PHYSICAL JOURNAL A,2008,37(3):#REF!.
APA 安春生,An, CS,&Riska, DO.(2008).The small axial charge of the N(1535)-resonance.EUROPEAN PHYSICAL JOURNAL A,37(3),#REF!.
MLA 安春生,et al."The small axial charge of the N(1535)-resonance".EUROPEAN PHYSICAL JOURNAL A 37.3(2008):#REF!.
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