Punch-through jets in $A+A$ collisions at RHIC/LHC

Abstract

High $p_T$ single and dihadron production is studied within a NLO pQCD parton model with jet quenching in high energy $A+A$ collisions at the RHIC/LHC energy. A simultaneous ${\chi }^2$-fit to both single and dihadron spectra can be achieved within a narrow range of energy loss parameter. Punch-through jets are found to result in the dihadron suppression factor slightly more sensitive to medium than the single hadron suppression factor at RHIC. Such jets at LHC are found to dominate high $p_T$ dihadron production and the resulting dihadron spectra are more sensitive to the initial parton distribution functions than the single hadron spectra.

4 pages, 4 figures, proceedings for the 20th international conference on ultra-relativistic nucleus-nucleus collisions (QM2008), Jaipur, India, February 4-10, 2008

References in corpus (16)

• Suppression of Hadrons with Large Transverse Momentum in Central Au+Au Collisions at $sqrt {s sub {sub {NN}}}_ = 130 GeV
• Disappearance of back-to-back high $p_T$ hadron correlations in central Au+Au collisions at $\sqrt{s_{NN}}$ = 200 GeV
• Centrality dependence of high pT hadron suppression in Au+Au collisions at sqrt(sNN)=130 GeV
• Nuclear parton distributions at next to leading order
• Jet Tomography of Hot and Cold Nuclear Matter
• Direct observation of dijets in central Au+Au collisions at sqrt(s_NN) = 200 GeV
• Dihadron Tomography of High-Energy Nuclear Collisions in NLO pQCD
• Nuclear parton distribution functions and their uncertainties
• High-$p_T$ Hadron Spectra, Azimuthal Anisotropy and Back-to-Back Correlations in High-energy Heavy-ion Collisions
• Why the observed jet quenching at RHIC is due to parton energy loss
• Gluon Shadowing and Hadron Production at RHIC
• Parton Energy Loss with Detailed Balance
• A Detailed Study of High-pT Neutral Pion Suppression and Azimuthal Anisotropy in Au+Au Collisions at \sqrt{s_{NN}} = 200 GeV
• Transverse momentum and centrality dependence of dihadron correlations in Au+Au collisions at sqrt(s_NN)=200 GeV: Jet-quenching and the response of partonic matter
• Energy Dependence of Jet Quenching and Life-time of the Dense Matter in High-energy Heavy-ion Collisions
• A NLO analysis on fragility of dihadron tomography in high energy $AA$ collisions

Cited by in corpus (4)

• Photon-Hadron Jet Correlations in p+p and Au+Au Collisions at sqrt(s_NN) = 200 GeV
• Extracting jet transport coefficient via single hadron and dihadron productions in high-energy heavy-ion collisions
• Quantifying jet transport properties via large $p_T$ hadron production
• Photon Radiation and Dilepton Production Induced by Rescattering in Strong Interacting Medium