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A Field Theoretic Investigation of Spin in QCD

Asmita Mukherjee
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Abstract

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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Asmita Mukherjee. 2000-08-07. A Field Theoretic Investigation of Spin in QCD. https://doi.org/10.1016/s0920-5632(00)00867-7

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