What I am doing now?

I am involved in design and construction of small robotic telescopes. The idea is to search over the whole sky for rare phenomena, such like optical counterparts of the Gamma Ray Bursts, nova explosions, or other fast optical transients. Our experiment "Pi of the Sky" currently collects data in the Las Campanas Observatory in Chile.

Till recently I used to study various aspects of QCD description of hard exclusive processes based on factorisation. Take, for example, deeply-virtual Compton scattering:

where a hard photon scatters off a nucleon to produce a real photon and a recoil nucleon. Factorisation theorem ensures that for very large virtuality of the hard photon the amplitude can be represented as a convolution of a hard, perturbatively calculable part, and a soft, non-perturbative, albeit well-defined amplitude:

We study the structure of this expansion i.e. the expansion of the hard part in the series in QCD coupling constant and the power-suppressed corrections to the leading-twist, factorisable result. New experiments are planned to study physics of deeply-virtual Compton scattering.