21 citations · 29 across the 4 of their papers we have counts for
4 papers · 1 filter
Perturbative fragmentation
B. Z. Kopeliovich, H. -J. Pirner, I. K. Potashnikova +2
The Berger model of perturbative fragmentation of quarks to pions is improved by providing an absolute normalization and keeping all terms in a (1-z) expansion, which makes the cal…
Diffractive Excitation of Heavy Flavors: Leading Twist Mechanisms
B. Z. Kopeliovich, I. K. Potashnikova, I. Schmidt +1
Diffractive production of heavy flavors is calculated within the light-cone dipole approach. Novel leading twist mechanisms are proposed, which involve both short and long transver…
The amplitude of lepton-pair production in relativistic ion collisions beyond the perturbative theory
A. N. Sissakian, A. V. Tarasov, H. T. Torosyan +1
We investigate the structure of some first terms of Watson series representing the amplitude of lepton-pair production in the ion collisions. It is shown that infrared instabilitie…
The color dipole approach to the Drell-Yan process in pA collisions
B. Z. Kopeliovich, J. Raufeisen, A. V. Tarasov
In the target rest frame and at high energies, Drell-Yan (DY) dilepton production looks like bremsstrahlung of massive photons, rather than parton annihilation. The projectile quar…