TY - JOUR
T1 - Scaling laws and equal - Time commutators
AU - Frishman, Yitzhak
AU - Yankielowicz, Shimon
PY - 1973
Y1 - 1973
N2 - The relation between generalized scaling laws, or equivalently light-cone behavior of current commutators, and equal-time commutators is investigated. In particular, the finiteness of the Callan-Gross integrals over equal-time commutators does not imply Bjorken scaling. It can happen that W2 or even (1ν)W2 scales. Also, even in the cases of forward matrix elements, the correspondence between light-cone and short-distance singularities is not one-to-one in general. The various cases are investigated. Operator Schwinger terms and their relation to the longitudinal cross section are also discussed.
AB - The relation between generalized scaling laws, or equivalently light-cone behavior of current commutators, and equal-time commutators is investigated. In particular, the finiteness of the Callan-Gross integrals over equal-time commutators does not imply Bjorken scaling. It can happen that W2 or even (1ν)W2 scales. Also, even in the cases of forward matrix elements, the correspondence between light-cone and short-distance singularities is not one-to-one in general. The various cases are investigated. Operator Schwinger terms and their relation to the longitudinal cross section are also discussed.
UR - http://www.scopus.com/inward/record.url?scp=35949031921&partnerID=8YFLogxK
U2 - 10.1103/PhysRevD.7.1661
DO - 10.1103/PhysRevD.7.1661
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AN - SCOPUS:35949031921
SN - 0556-2821
VL - 7
SP - 1661
EP - 1668
JO - Physical Review D
JF - Physical Review D
IS - 6
ER -