Energy dependence of jet quenching and lifetime of dense matter in high-energy heavy-ion collisions

2004/05/12 by Xin-Nian Wang · 4 citations
Physics and Astronomy · #Atomic physics #Energy (signal processing) #Hadron #Heavy ion #High-Energy Particle Collisions Research #Ion #Jet (fluid) #Jet quenching #Nuclear physics #Particle physics #Particle physics theoretical and experimental studies #Parton #Perturbative QCD #Physics #Quantum Chromodynamics and Particle Interactions #Quantum chromodynamics #Spectral line #Thermodynamics #hep-ph #nucl-ex #nucl-th

paper · pdf · doi:10.1103/physrevc.70.031901

published as Phys.Rev. C70 (2004) 031901 · 6 pages in RevTex with 3 postscript figures

arxiv created 2004/05/12 · openalex publication_date 2004/09/14 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05

Abstract

Suppression of high p_T hadron spectra in high-energy heavy-ion collisions at different energies is studied within a perturbative QCD parton model incorporating medium-induced parton energy loss. The p_T dependence of the nuclear modification factor R_AA(p_T) is found to depend on both the energy dependence of the parton energy loss and the power-law behavior of the initial jet spectra. The high p_T hadron suppression at √(s)=62.4\phantom\rule0.3em0exGeV and its centrality dependence are studied in detail. The overall values of the modification factor are found to provide strong constraints on the lifetime of the dense matter.

Citations

• Next-to-leading order fragmentation functions for pions and kaons
• Parton Coalescence and the Antiproton/Pion Anomaly at RHIC
• Dynamical Scaling Law for Jet Tomography
• Absence of Suppression in Particle Production at Large Transverse Momentum insNN=200 GeVd+AuCollisions
• Centrality Dependence of Charged-Hadron Transverse-Momentum Spectra ind+AuCollisions atsNN=200 GeV
• Suppressedπ0Production at Large Transverse Momentum in CentralAu+AuCollisions atsNN=200 GeV
• Parton distributions: a new global analysis

Cited by

• Equation of state dependence of Mach cone-like structures in Au+Au collisions
• Hadron Correlations and Parton Recombination
• STAR results on medium properties and response of the medium to energetic partons
• Properties of particle production at large transverse momentum in Au+Au and Cu+Cu collisions at RHIC