2004, Torino Aram Kotzinian.

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Presentation transcript:

2004, Torino Aram Kotzinian

2004, Torino Aram Kotzinian

2004, Torino Aram Kotzinian

2004, Torino Aram Kotzinian

2004, Torino Aram Kotzinian

2004, Torino Aram Kotzinian

2004, Torino Aram Kotzinian

2004, Torino Aram Kotzinian

Details: frequently used expressions 2004, Torino Aram Kotzinian

2004, Torino Aram Kotzinian

Leading quark distributions For gluons we have 2004, Torino Aram Kotzinian

QCD evolution 2004, Torino Aram Kotzinian

Evolution equations For flavor singlet combinations we have coupled equations: 2004, Torino Aram Kotzinian

First momentum 2004, Torino Aram Kotzinian

Data from CERN, SLAC & HERMES 2004, Torino Aram Kotzinian

The isotopic SU(2) invariance of strong interactions, We have two sum rules and can express 2004, Torino Aram Kotzinian

Experiment: 2004, Torino Aram Kotzinian

2004, Torino Aram Kotzinian

are determined as matrix elements of conserved currents and do not depend on 2004, Torino Aram Kotzinian

Remember: Spin “puzzle”: or ???? 2004, Torino Aram Kotzinian