Quark Polarization in Nucleon

Ma Weixing

Chinese Physics C> 1997, Vol. 21> Issue(10) : 946-952

Quark Polarization in Nucleon

Ma Weixing ^,

Institute of High energy Physics, the Chinese AScademy of Sciences, beijing 100039

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Abstract：
Based on the relationship between electron induced deep inelastic scattering and forward virual photon compote scattering, the spin dependent structure function of nucleon and its first moment are expressed in terms of total absorption cross section of virtual photon which are calculated numerically in SU(6) quark model by use of helicity amplitudes. With the theoretical cross sections, the first moment of proton spin dependent structure function is predicted, and then quark polarization is deduced from the predicted moment. The experimental measurements of EMC and SLAC are reproduced thcoretically.

References

[1]

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Ma Weixing. Quark Polarization in Nucleon[J]. Chinese Physics C, 1997, 21(10): 946-952.

Ma Weixing. Quark Polarization in Nucleon[J]. Chinese Physics C, 1997, 21(10): 946-952. shu

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Received: 1900-01-01
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通讯作者: 陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

Quark Polarization in Nucleon

Corresponding author: Ma Weixing,

Institute of High energy Physics, the Chinese AScademy of Sciences, beijing 100039

Received Date: 1900-01-01

Accepted Date: 1900-01-01

Available Online: 1997-10-05

Abstract: Based on the relationship between electron induced deep inelastic scattering and forward virual photon compote scattering, the spin dependent structure function of nucleon and its first moment are expressed in terms of total absorption cross section of virtual photon which are calculated numerically in SU(6) quark model by use of helicity amplitudes. With the theoretical cross sections, the first moment of proton spin dependent structure function is predicted, and then quark polarization is deduced from the predicted moment. The experimental measurements of EMC and SLAC are reproduced thcoretically.

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