Abstract
We calculate one-loop radiative QCD corrections to the three polarized and unpolarized structure functions that determine the beam-quark polar angle dependence of the longitudinal polarization of light and heavy quarks produced in e+e−-annihilations. We present analytical and numerical results for the longitudinal polarization and its polar angle dependence. We discuss in some detail the zero-mass limit of our results and the role of the anomalous spin-flip contributions to the polarization observables in the zero-mass limit. Our discussion includes transverse and longitudinal beam polarization effects.
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Groote, S., Körner, J.G. & Tung, M.M. Polar angle dependence of the longitudinal polarization of quarks produced in e+e−-annihilation. Z Phys C - Particles and Fields 74, 615–629 (1997). https://doi.org/10.1007/s002880050427
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DOI: https://doi.org/10.1007/s002880050427