79 citations · 97 across the 8 of their papers we have counts for
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hep-ph2014★ 2 cited
Gauge invariance, Lorentz covariance and canonical quantization in nucleon structure studies
Fan Wang, X. S. Chen, W. M. Sun +2
There are different operators of quark and gluon momenta, orbital angular momenta, and gluon spin in the nucleon structure study. The precise meaning of these operators are studied…
hep-ph2010
Gauge-invariant momentum and angular momentum operators in quantum electrodynamics and chromodynamics
C. W. Wong, Fan Wang, W. M. Sun +1
Differences between vector potentials in different gauges contain no dynamics in both classical and quantum electrodynamics and chromodynamics. Consequently, once gauge invariance…