Publication Type
Conference Paper
Journal Name
Journal of Physics G: Nuclear and Particle Physics
Publication Date
Page Number
104085
Volume
35
Issue
10
Conference Name
Quark Matter 2008 (20th International Conference on Ultra-Relativistic Nucleus-Nucleus Collisions)
Conference Location
Jaipur, India
Conference Date
-
Abstract
In a central nucleus-nucleus collision at high energies, medium partons kicked by a near-side jet acquire a momentum along the jet direction and subsequently materialize as the observed ridge particles. They carry direct information on the early parton momentum distribution which can be extracted by using the ridge data for central AuAu collisions at \sqrt{S_NN} = 200 GeV. The extracted parton momentum distribution has a thermal-like transverse momentum distribution but a non-Gaussian, relatively flat rapidity distribution at mid-rapidity with sharp kinematic boundaries at large rapidities that depend on the transverse momentum.
