Abstract
Abstract Determining the dipole model unintegrated gluon distribution (UGD) is a problem of significant interest in small- x physics. Here we relate the dipole gluon distribution to the angular correlation function of the process p A → l l ¯ π 0 X , which provides a clean probe of the nuclear structure, and compute numerical predictions for the correlation function based on three models for the UGD: the GBW model, and BK evolution with fixed and running coupling. With all three models, the correlation exhibits an interesting double-peak structure, but the BK evolution is necessary to reproduce the near-side emission peak.
Full Text
Submitted Version (
Free)
Published Version
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call