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Abstract:
In this seminar, I will provide an extensive overview of the current status of
phenomenological research in exclusive
and diffractive photoproduction of vector mesons. I will cover the formalism and
the key results on photo- and electroproduction observables of both heavy
quarkonia states and light vector mesons in the color dipole picture. The key
challenges in QCD modelling of such reactions including the basic aspects of
low-x QCD dynamics and saturation would be outlined. In particular,
I will outline possible implications of these type of reactions for
understanding the multi-dimensional proton and nucleus structure at high
energies encoded in the so-called Wigner gluon distribution. I will start with a
pedagogical introduction into the dipole approach, saturation models and the
Wigner distributions connected to the dipole S-matrix, and then expand into
other aspects such as modelling of the vector meson wave functions. Finally, I
will elaborate on the current theoretical results and how they match the
existing experimental measurements both on the total and differential cross
sections.
The seminar will be held in the conference hall in the main building of the Institute of Physics, Na Slovance 2, Prague 8 on the ground floor.
Location: https://goo.gl/maps/wEf7PsiLimSXMZhE9
The seminar will be also available via ZOOM video conference system:
Meeting ID: 674 9629 6646
Passcode: 575511
or join meeting via direct ZOOM link