The Momentum Kick Model Description of the Near-Side Ridge and Jet Quenching

Abstract

In the momentum kick model, a near-side jet emerges near the surface, kicks medium partons, loses energy, and fragments into the trigger particle and fragmentation products. The kicked medium partons subsequently materialize as the observed ridge particles, which carry direct information on the magnitude of the momentum kick and the initial parton momentum distribution at the moment of jet-(medium parton) collisions. The initial parton momentum distribution extracted from the STAR ridge data for central AuAu collisions at \sqrt{s_{NN}}=200 GeV has a thermal-like transverse momentum distribution and a rapidity plateau structure with a relatively flat distribution at mid-rapidity and sharp kinematic boundaries at large rapidities. Such a rapidity plateau structure may arise from particle production in flux tubes, as color charges and anti-color charges separate at high energies. The centrality dependence of the ridge yield and the degree of jet quenching can be consistently described by the momentum kick model.

28 pages, 10 figures

References in corpus (19)

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• On the Origin of the "Ridge" phenomenon induced by Jets in Heavy Ion Collisions
• Momentum Broadening in an Anisotropic Plasma
• Landau Hydrodynamics Reexamined
• Testing the theory of QGP-induced energy loss at RHIC and the LHC
• Jet broadening in unstable non-Abelian plasmas
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• Quarkonia and Quark Drip Lines in Quark-Gluon Plasma
• Viscosity and the Soft Ridge at RHIC
• Improving a radiative plus collisional energy loss model for application to RHIC and LHC
• 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
• Identifying the underlying physics of the ridge via 3-particle $\Delta \eta -\Delta \eta$ correlations
• Exploring Early Parton Momentum Distribution with the Ridge from the Near-Side Jet
• Search for a Ridge Structure Origin with Shower Broadening and Jet Quenching
• Heavy Quarkonia and Quark Drip Lines in Quark-Gluon Plasma

Cited by in corpus (11)

• From QCD-based hard-scattering to nonextensive statistical mechanical descriptions of transverse momentum spectra in high-energy $pp$ and $p\bar{p}$ collisions
• Observation of a "Ridge" correlation structure in high multiplicity proton-proton collisions: A brief review
• Momentum Kick Model Analysis of PHENIX Near-Side Ridge Data and Photon Jet
• Ridge Formation Induced by Jets in $pp$ Collisions at 7 TeV
• Exploring Early Parton Momentum Distribution with the Ridge from the Near-Side Jet
• The Parton Bubble Model(PBM) is Connected to the Glasma Flux Tube Model(GFTM), and predicts the Ridge and Strong CP violation
• Momentum-kick model application to high multiplicity pp collisions at $\sqrt{s}=13\mathrm{TeV}$ at the LHC
• 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
• Effects of Minijets on Common Observables in Heavy-Ion Collisions with Uncommon Implications
• Analysis of the near-side ridge structure in pp collisions via Momentum-Kick Model