Exploring Early Parton Momentum Distribution with the Ridge from the Near-Side Jet
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.
Keywords
Cite
@article{arxiv.0804.4017,
title = {Exploring Early Parton Momentum Distribution with the Ridge from the Near-Side Jet},
author = {Cheuk-Yin Wong},
journal= {arXiv preprint arXiv:0804.4017},
year = {2008}
}
Comments
In Proceedings of 20th International Conference on Ultra-Relativistic Nucleus Nucleus Collisions, Jaipur, India, Feb. 4-10, 2008