The structure of hadrons studied in scattering processes of elementary particles at high-energies is encoded in distributions of hadron constituents, i.e. in distributions of partons. For hard exclusive processes, in which exist one or a few hard energetic scales which justify a use of the perturbation theory and where one measures properties of all particles in the final state, the advantage is a possibility to probe two and three dimensional generalized parton distributions in hadrons. This makes the studies of exclusive processes an important tool in "the quantum femtophotography".
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Professor Lech Szymanowski
Zakład Fizyki Teoretycznej IPJ
Hoża 69, 00-681 Warszawa
phone 0225532275
fax 0226216085