Research PapersNo Access

POLARIZED DEEP INELASTIC SCATTERING FROM PHOTON TARGETS AND AXIAL ANOMALIES

STEVEN D. BASS

Department of Physics and Mathematical Physics, University of Adelaide, G.P.O. Box 498, Adelaide, SA 5001, Australia

Address after July 1992: HEP Group, Cavendish Laboratory, University of Cambridge, Modingley Road, Cambridge, CB3 0HE, England.

Search for more papers by this author

https://doi.org/10.1142/S0217751X9200274XCited by:36 (Source: Crossref)

Abstract

We discuss the polarized photon structure function and focus on the first moment of , where we explore the role of the axial QED and strong U(1) anomalies. Electromagnetic gauge invariance determines an exact sum rule for the first moment of . If we accept a recently proposed definition of “spin content” then we must also accept a polarized gluon component of Δg^γ=2π/α_s in the spin-one photon.