Speaker
Dr
Mikhail Ryskin
(Petersburg Nuclear Physics Institute)
Description
(ONLINE)
The main properties of high energy diffraction are considered. Plan: 1.Definition Diffraction = elastic scattering caused by the distortion of incoming wave function V.N. Gribov -- "High energy diffraction may be related to confinement since here we deal with the amplitude of high energy particles interaction." Diffractive events is a good place to search for the new physics (glueballs, QCD instanton, etc.) in a good experimental environment (i.e. low secondaries multiplicity) 2. Pomeron (multiperipheral models, QED, BFKL) Diffractive cone shrinkage 3. AGK-rules, space-time picture U-matrix or eikonal unitarization 4. Weak vs. strong Pomeron-Pomeron interaction 5. TOTEM-ALFA $\sigma_{tot}$ tension
