1998/11/16 by Philip G. Ratcliffe, Ratcliffe, Philip G.
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #hep-ph
paper · pdf · doi:10.48550/arxiv.hep-ph/9811348
18 pages, 7 figures in eps files, packages used: autobf.sty, axodraw.sty
arxiv created 1998/11/16 · arxiv updated 2009/11/30
I discuss the present situation with regard to a variety of theoretical topics in hadronic spin physics: (a) global analysis of the g1 data---positivity at leading and next-to-leading order, renormalisation-scheme dependence, parametrisation, and hyperon beta-decays; (b) items from the realm of transverse spin---twist-three effects, single-spin asymmetries, and transversity; and finally (c) recent developments in understanding the Q2 evolution of orbital angular momentum.