Speaker
Prof.
Ian Balitsky
(JLab/ODU)
Description
A typical factorization formula for production of a particle with a small transverse momentum in hadron-hadron collisions is given
by a convolution of two TMD parton densities with cross section of production of the final particle by the two partons.
For practical applications at a given transverse momentum, though, one should estimate at what momenta
the power corrections to the TMD factorization formula become essential. In this talk I present the results of calculation of
first power corrections to TMD factorization formula for Z-boson production and Drell-Yan process in high-energy hadron-hadron collisions.
At the leading order in $N_c$ power corrections are expressed in terms of leading power TMDs by QCD equations of motion.
