Positivity and unitarity constraints on dipole gluon distributions
arXiv:1607.06311 · doi:10.5506/APhysPolB.47.1965
Abstract
In the high-energy domain, gluon transverse-momentum dependent distributions in nuclei obey constraints coming from positivity and unitarity of the colorless QCD dipole distributions through Fourier-Bessel transformations. Using mathematical properties of Fourier-positive functions, we investigate the nature of these constraints which apply to dipole model building and formulation
11 pages, 2 figures, Dedicated to Andrzej Bialas in honor of his 80th birthday