Transverse Spin program at involving possible Collins and Sivers effects

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STAR. Transverse Spin program at involving possible Collins and Sivers effects. Mirko P l anini ć University of Zagreb Prague, July 20 - July 26, 2008. Recall: simple quark model. In QCD: proton is not just 3 quarks ! Rich structure of quarks anti-quarks, gluons. - PowerPoint PPT Presentation