Open Questions in High Energy Spin Physics
R. L. Jaffe
Abstract
I describe a few of the most exciting open questions in high energy spin physics. After a brief look at (g-2)μand the muon electric dipole moment, I concentrate on QCD spin physics. Pressing questions include the interpretation of new asymmetries seen in semi-inclusive DIS, measuring the polarized gluon and quark transversity distributions in the nucleon, testing the DHGHY Sum Rule, measuring the orbital angular momentum in the nucleon, and many others which go beyond the space and time allotted for this talk.
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