Plenary Session X – Chair: E. FriedmanNo Access

NUCLEON SPIN AND ITS GAUGE INVARIANCE AND CANONICAL COMMUTATION RELATION

FAN WANG

Physics Department, Nanjing University, Nanjing, 210093, China

https://doi.org/10.1142/S0217751X05023268Cited by:0 (Source: Crossref)

Abstract

The nucleon spin structure has been shown to be described by a dynamical constituent quark model with ~85% q³ and Fock components. As a QCD system there is no gauge invariance and canonical commutation relation simultaneously satisfied decomposition of the nucleon spin operator. To keep gauge invariance but give up the canonical commutation relation of the angular momentum operator will ruin the multiple moments expansion and the partial wave decomposition. A weak gauge invariant condition is proposed where the canonical commutation relation of angular momentum operator is intact and the gauge invariance is only true for special sets of matrix elements instead of the operators.

You currently do not have access to the full text article.
Recommend the journal to your library today!

References

X. S. Chen and F. Wang, Commun. Theor. Phys. 27, 121 (1997); X. Ji, Phys. Rev. Lett. 78, 6102 (1997) . Google Scholar
S. V. Bashinsky and R. L. Jaffe, Nucl. Phys. B 536, 303 (1999), DOI: 10.1016/S0550-3213(98)00559-8. Crossref, Web of Science, ADS, Google Scholar
B. Q. Ma, J. Phys. G 17, L53 (1992), DOI: 10.1088/0954-3899/17/5/001. Crossref, Web of Science, Google Scholar
D. Qing, X. S. Chen and F. Wang, Phys. Rev. C57, R31 (1998); Phys. Rev. D58, 114032 (1998); Commun. Theor. Phys. 32, 403 (1999). X. B. Chen, X. S. Chen and F. Wang, Phys. Rev. Let. 87, 012001 (2001) , arXiv:hep-ph/0002200 . Google Scholar
F. Wang, in GDH2000, (Mainz 2000) p.345-352; F. Wang, X. S. Chen, D. Qing and H. S. Zong, Int. J. Mod. Phys. A18, 1193 (2003) . Google Scholar
X. S. Chen, D. Qing and F. Wang, Chin. Phys. Lett. 16, 403 (1999); X. S. Chen, D. Qing, W. M. Sun, H. S. Zong and F. Wang, Phys. Rev. C69, 045201 (2004); X. S. Chen, R. G. E. Timmermans, W. M. Sun, H. S. Zong and F. Wang, Phys. Rev. C70, 015201 (2004) . Google Scholar
X. S. Chen and F. Wang , arXiv:hep-ph/9802346 . Google Scholar
P. Hoodbhoy, X. Ji and W. Lu, Phys. Rev. D59, 074010 (1999); P. Hoodbhoy and X. Ji, Phys. Rev. D60, 114042 (1999) . Google Scholar
X. S. Chen, W. M. Sun and F. Wang, J. Phys. G25, 2021 (1999); W. M. Sun, X. S. Chen and F. Wang, hep-th/0003279; Phy. Lett. B483, 299 (2000); hep-th/0005060; Phys. Lett. B503, 430 (2001); hep-th/0012027; hep-th/0103160 . Google Scholar

System Upgrade on Tue, May 28th, 2024 at 2am (EDT)

NUCLEON SPIN AND ITS GAUGE INVARIANCE AND CANONICAL COMMUTATION RELATION

Abstract

Recommended