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19 papers · 2 filters
Exclusive photo- and electroproduction at HERA as a possible probe of the odderon singularity in QCD
J. Czyzewski, J. Kwiecinski, L. Motyka +1
Theory and phenomenology of the eta_c photo- and electroproduction is developed from the point of view of probing the odderon singularity in QCD which corresponds to the three gluo…
Nonhermitean Random Matrix Models : a Free Random Variable Approach
Romuald A. Janik, Maciej A. Nowak, Gabor Papp +2
Using the standard concepts of free random variables, we show that for a large class of nonhermitean random matrix models, the support of the eigenvalue distribution follows from t…
New developments in the theory of heavy quarkonia
Kacper Zalewski
The new approach to decays of heavy quarkonia, based on factorization and expansions in powers of the relative velocity of the valence quarks is reviewed.
Heavy quarkonia
Kacper Zalewski
Two complementary approaches to the theory of heavy quarkonia are discussed. The nonrelativistic potential models give amazingly accurate predictions, but lack a theoretical justif…
Heavy baryon masses
Agnieszka Zalewska, Kacper Zalewski
Simple and plausible rules are used to correlate the masses of the ground-state baryons containing single heavy ( or ) quarks. A comparison with the experimental data shows t…
On the Electron Structure Function
Wojciech Slominski, Jerzy Szwed
The collinear QCD structure of the electron is studied within the Standard Model. The electron structure function is defined and calculated in leading logarithmic approximation. It…