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.

In Proceedings of 20th International Conference on Ultra-Relativistic Nucleus Nucleus Collisions, Jaipur, India, Feb. 4-10, 2008

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Cited by in corpus (4)

• The Momentum Kick Model Description of the Near-Side Ridge and Jet Quenching
• Momentum Kick Model Analysis of PHENIX Near-Side Ridge Data and Photon Jet
• Parton Momentum Distribution at the Moment of Jet-Parton Collision
• Novel Bose-Einstein Interference in the Passage of a Fast Particle in a Dense Medium