Scaling properties of the transverse mass spectra
  Motivated from the formation of an initial state of gluon-saturated matter, we discuss scaling relations for the transverse mass spectra at BNL's Relativistic Heavy-Ion Collider (RHIC). We show on linear plots, that the transverse mass spectra for various hadrons can be described by an universal function. The transverse mass spectra for different centralities can be rescaled into each other. Finally, we demonstrate that scaling is also present in proton-antiproton collider data and compare it to scaling at RHIC. 
Jurgen Schaffner-Bielich, Dima Kharzeev, Larry McLerran, Raju   Venugopalan