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Proton Spin from General Colour Symmetry Model |
| LÜ Xiao-Fu1,3;LI Ying-Chuan1;SUN Ming-Shan1;WEN Xin-Min2 |
| 1Department of Physics, Sichuan University, Chengdu 610064
2Institute of Nuclear Science and Technology, Sichuan University, Chengdu 610064
3Institute of Theoretical Physics, Chinese Academy of Sciences, Beijing 100080
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| Cite this article: |
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LÜ, Xiao-Fu, LI Ying-Chuan et al 2001 Chin. Phys. Lett. 18 508-510 |
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Abstract The quark wave function in a proton has been calculated by using the global colour symmetry model. We find that the property of this wave function is closely related to the nonperturbative vacuum configuration. Using the wave function we make the calculation of the matrix element of the axial vector current of the quarks in the proton ground state. Its value is found to be 0.17, which is perfectly consistent with 0.23(+6).
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| Keywords:
24.85.+p
12.38.Lg
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Published: 01 April 2001
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| PACS: |
24.85.+p
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(Quarks, gluons, and QCD in nuclear reactions)
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12.38.Lg
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(Other nonperturbative calculations)
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