Parton Momentum Distribution at the Moment of Jet-Parton Collision

Abstract

We extract the early parton momentum distribution using the STAR Collaboration data of ridge particles associated with a near-side jet in central AuAu collisions at \sqrt{s_{NN}}=200 GeV. The ridge particles are identified as medium partons kicked by the jet near the surface and they carry direct information on the parton momentum distribution at the moment of jet-parton collisions. The extracted parton momentum distribution has a thermal-like transverse momentum distribution but a rapidity plateau structure with a relatively flat rapidity distribution at mid-rapidities with sharp kinematic boundaries at large rapidities that depend on the transverse momentum.

arXiv comment4 pages, 4 figures, in Latex

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Cited by in corpus (15)

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• Three-particle correlation from glasma flux tubes
• The Momentum Kick Model Description of the Near-Side Ridge and Jet Quenching
• Momentum Kick Model Description of the Ridge in (Delta-phi)-(Delta eta) Correlation in pp Collisions at 7 TeV
• System size and energy dependence of near-side di-hadron correlations
• Momentum Kick Model Analysis of PHENIX Near-Side Ridge Data and Photon Jet
• The Wigner Function of Produced Particles in String Fragmentation
• Exploring Early Parton Momentum Distribution with the Ridge from the Near-Side Jet
• Bose-Einstein Interference in the Passage of a Jet in a Dense Medium
• Feynman Amplitude Approach to study the Passage of a Jet in a Medium
• Search for jet quenching effects on the plain jet mass in Pb+Pb collisions at the LHC with a multiphase transport model
• Novel Bose-Einstein Interference in the Passage of a Fast Particle in a Dense Medium
• Analysis of the near-side ridge structure in pp collisions via Momentum-Kick Model