QCD road to the high energy nuclear physics

by Leonid Frankfurt (Tel Aviv University)

Wednesday Oct 18, 2023, 1:30 PM → 3:00 PM GMT

Unresolved problems of low-resolution nuclear theory. First
experimental indication of the contradictions between QCD and nuclear
theory ideas on short-range inter-nucleon forces and high energy data.
The color gauge symmetry constraint on the wave function of a bound
state. The analysis of the vacuum matrix element of the commutator of
local currents allows us to evaluate the value of the pQCD core of the
ground state of a hadron. Factorization theorems together with the
correlation length are effective tools for the calculation of hard
diffractive processes since they account for the constraints due to
symmetries. Examples of application of factorization theorems for the
prediction and explanation of the processes gamma* + p -> rho + p,
gamma + N -> J/psi + N, pi + A -> 2 jets + rap gap + X. The dominance
of nonsense polarizations of gluons leads to the color transparency
phenomenon, to the non-relativistic description of heavy quarkonium
produced in the hard diffractive processes. Specifics of the Q^2, x
evolutions of parton distributions at small x and the nuclear
shadowing phenomenon.  Coherence length and second type of CT.

 

 

Webinar at https://us02web.zoom.us/j/81572103194?pwd=eE1QVWZFc1hWbWszZ2N0RW1iWHFBZz09

LFrankfurt ILCACseminar 20231018 slides.pdf