The Calculation for the Helicity Amplitudes of the Nucleon Resonances and the Meson Cloud Effect in Relativistic Quark Model

DONG Yu-Bing

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《中国物理C》（英文）编辑部

2024年10月30日

Chinese Physics C> 2001, Vol. 25> Issue(1) : 31-36

The Calculation for the Helicity Amplitudes of the Nucleon Resonances and the Meson Cloud Effect in Relativistic Quark Model

DONG Yu-Bing ^,

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

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Abstract：
Relativistic quark model is employed to study the helicity amplitudes and the electroproduction amplitudes of the Δ(1232) and N* (1440). The meson cloud effect is considered. The calculations show the improved results for those spin observebles. A good description for the Roper resonance is achived.

References

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DONG Yu-Bing. The Calculation for the Helicity Amplitudes of the Nucleon Resonances and the Meson Cloud Effect in Relativistic Quark Model[J]. Chinese Physics C, 2001, 25(1): 31-36.

DONG Yu-Bing. The Calculation for the Helicity Amplitudes of the Nucleon Resonances and the Meson Cloud Effect in Relativistic Quark Model[J]. Chinese Physics C, 2001, 25(1): 31-36. shu

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Received: 1999-12-30
Revised: 1900-01-01

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沈阳化工大学材料科学与工程学院沈阳 110142

The Calculation for the Helicity Amplitudes of the Nucleon Resonances and the Meson Cloud Effect in Relativistic Quark Model

DONG Yu-Bing ^,

Corresponding author: DONG Yu-Bing,

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

Received Date: 1999-12-30
Accepted Date: 1900-01-01
Available Online: 2001-01-05

Abstract: Relativistic quark model is employed to study the helicity amplitudes and the electroproduction amplitudes of the Δ(1232) and N* (1440). The meson cloud effect is considered. The calculations show the improved results for those spin observebles. A good description for the Roper resonance is achived.