Saturation and geometrical scaling

Abstract

We discuss emergence of geometrical scaling as a consequence of the nonlinear evolution equations of QCD, which generate a new dynamical scale, known as the saturation momentum: Qs. In the kinematical region where no other energy scales exist, particle spectra exhibit geometrical scaling (GS), i.e. they depend on the ratio pT=Qs, and the energy dependence enters solely through the energy dependence of the saturation momentum. We confront the hypothesis of GS in different systems with experimental data.

6 pages, 4 figures, based on talk presented at XLVI International Symposium on Multiparticle Dynamics, 29 August 2016 to 02 September 2016, Seogwipo, Jeju Island, South Korea

References in corpus (4)

• Saturation and Scaling of Multiplicity, Mean p_T and p_T Distributions from 200 GeV < sqrt{s} < 7 TeV - Addendum
• Geometrical scaling in hadronic collisions
• Geometrical Scaling in Inelastic Inclusive Particle Production at the LHC
• Geometrical Scaling in High Energy Hadronic Collisions