2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/104481There will be a review of the history of polarized proton beams, and a discussion of the unexpected and still unexplained large transverse spin effects found in several high energy proton-proton spin experiments at the ZGS, AGS and Fermilab. Next, there will be a discussion of present and possible future experiments on the violent elastic collisions of polarized protons at the 70 GeV U-70 accelerator at IHEP-Protvino in Russia and the new high intensity 50 GeV J-PARC facility being built at Tokai in Japan.8 pages, 7 figures, XIth International Conference on Elastic and Diffractive Scattering Chateau de Blois, France, May 15 - 20, 2005High Energy Physics - ExperimentHigh Energy Physics - PhenomenologyAccelerator Physicstext