A Field Theoretic Investigation of Spin in QCD

Details A Field Theoretic Investigation of Spin in QCD A Field Theoretic Investigation of Spin in QCD

2000-08-07

arxiv.org/abs/hep-ph/0008055v1

Nucl.Phys.Proc.Suppl. 90 (2000) 31-33

Physics

High Energy Physics

High Energy Physics - Phenomenology

4 pages, Latex2e, contribution to the proceedings of Tenth International Light-Cone Meeting on Non-Perturbative QCD and Hadron

Scientific paper

10.1016/S0920-5632(00)00867-7

Utilizing the kinematical boost in light-front formalism one can address the issue of relativistic spin operators in an arbitrary reference frame. In the gauge $A^+=0$, the interaction dependent transverse spin operators can be separated into three parts. In analogy with the helicity sum rule, we propose a transverse spin sum rule. We perform a one loop renormalization of the transverse spin operator and show that the counterterm needed is the same as the linear mass counterterm in the light-front QCD Hamiltonian.

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