Ridge Structure associated with the Near-Side Jet in the (Delta phi)-(Delta eta) Correlation

Abstract

In the (Delta phi)-(Delta eta) correlation associated with a near-side jet observed by the STAR Collaboration in heavy-ion collisions at RHIC [Ref. 1-6], the ridge structure can be explained by the momentum kick model in which the ridge particles are identified as medium partons which suffer a collision with the jet and acquire a momentum kick along the jet direction. If this is indeed the correct mechanism, the ridge structure associated with the near-side jet may be used to probe the parton momentum distribution at the moment of the jet-parton collision, leading to the result that at that instant the parton temperature is slightly higher and the rapidity width substantially greater than corresponding quantities of their evolution product inclusive particles at the end point of the nucleus-nucleus collision.

15 pages, 9 figures

References in corpus (3)

• Intra-jet correlations of high-$p_t$ hadrons from STAR
• Momentum Broadening in an Anisotropic Plasma
• Azimuthal and pseudo-rapidity correlations with strange particles at intermediate-p${}_T$ at RHIC

Cited by in corpus (15)

• Dihadron azimuthal correlations in Au+Au collisions at sqrt(s_NN)=200 GeV
• The Momentum Kick Model Description of the Near-Side Ridge and Jet Quenching
• Dependence of Ridge Formation on Trigger Azimuth: Correlated Emission Model
• Understanding jet quenching and medium response with di-hadron correlation
• Momentum Kick Model Analysis of PHENIX Near-Side Ridge Data and Photon Jet
• Recent high-pt results from STAR
• Parton Momentum Distribution at the Moment of Jet-Parton Collision
• System and energy dependence of strange and non-strange particle correlations in STAR at RHIC
• Exploring Early Parton Momentum Distribution with the Ridge from the Near-Side Jet
• Longitudinal broadening of near side jets due to parton cascade
• Search for a Ridge Structure Origin with Shower Broadening and Jet Quenching
• Influence of quenched jets on di-hadron correlations
• Energy and system dependence of high-$p_T$ triggered two-particle near-side correlations
• Novel Bose-Einstein Interference in the Passage of a Fast Particle in a Dense Medium
• Probe the QGP via dihadron correlations: Jet quenching and Medium-response