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A one parameter family of retarded linear operators on scalar fields on causal sets is introduced. When the causal set is well-approximated by 4 dimensional Minkowski spacetime, the operators are Lore...
Nucleon internal structure: a new set of quark, gluon momentum, angular momentum operators and parton distribution functions
nucleon internal structure quark-gluon momentum and angular momentum canonical commutation relation gauge invariance
2009/11/17
It is unavoidable to deal with the quark and gluon momentum and angular momentum contributions to the nucleon momentum and spin in the study of nucleon internal structure. However we never have the qu...