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arXiv · hep-ph/9805316

The Spin Structure of a Polarized Photon

Steven D. Bass·Stanley J. Brodsky·Ivan Schmidt
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Abstract

We show that the first moment of the spin-dependent structure function $g_1^γ(x,Q^2)$ of a real photon vanishes independent of the momentum transfer $Q^2$ it is probed with. This result is non-perturbative: it holds to all orders in perturbation theory in abelian and non-abelian gauge theory and at every twist.

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Steven D. Bass, Stanley J. Brodsky, Ivan Schmidt. 1998-05-13. The Spin Structure of a Polarized Photon. https://doi.org/10.1016/s0370-2693(98)00917-4

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