Leading-particle suppression in high energy nucleus-nucleus collisions

By A. Dainese, C. Loizides, G. Paic. 2004

217 citations recorded by the source corpus.

Abstract.Parton energy loss effects in heavy-ion collisions are studied with the Monte Carlo program PQM (Parton Quenching Model) constructed using the BDMPS quenching weights and a realistic collision geometry. The merit of the approach is that it contains only one free parameter that is tuned to the high-pt nuclear modification factor measured in central Au-Au collisions at $\sqrt{s_{\rm NN}} = 200$ GeV. Once tuned, the model is consistently applied to all the high-pt observables at 200 GeV: the centrality evolution of the nuclear modification factor, the suppression of the away-side jet-like correlations, and the azimuthal anisotropies for these observables. Predictions for the leading-particle suppression at nucleon-nucleon centre-of-mass energies of 62.4 and 5500 GeV are presented. The limits of the eikonal approximation in the BDMPS approach, when applied to finite-energy partons, are discussed.

Subfields: Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/76ef2392b16701e9b821a1e997f5746fbeafcbc5

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In Nuclear and High Energy Physics

Citations in the corpus

Gluon energy loss in the gauge-string duality (2008, unknown): “On the other hand, according to [13], comparison of parton quenching model calculations [14, 15] to PHENIX data leads to the following 3σ range for the averaged value 〈q̂〉:”
Study of high-pT charged particle suppression in PbPb compared to pp collisions at sqrt(sNN)=2.76 TeV (2012, background): “5 TeV (PQM [32] with medium transport-coefficient 〈q̂〉 = 30–80 GeV2/fm and GLV [33, 34] for various values of the medium gluon pseudorapidity density dNg/dy) and for the actual collision energy of sNN = 2.”
Momentum fluctuations of heavy quarks in the gauge-string duality (2006, background): “This is presumably bounded below by the corresponding quantity for hard partons without a flavor tag, estimated in [47] as λmean = 2.”
Study of high-pT charged particle suppression in PbPb compared to pp collisions at $\sqrt{s_{\mathrm{NN}}}=2.76~\mathrm{TeV}$ (2012, background): “5 TeV (PQM [32] with medium transport-coefficient 〈q̂〉 = 30–80 GeV2/fm and GLV [33, 34] for various values of the medium gluon pseudorapidity density dNg/dy) and for the actual collision energy of sNN = 2.”
Improved Monte Carlo Glauber predictions at present and future nuclear colliders (2017, background): “where the initial point (x0, y0) is usually distributed according to ρcoll, and the azimuthal direction φ0 uniformly [25, 26].”
Gauge/String Duality, Hot QCD and Heavy Ion Collisions (2011, background): “One such model is the PQM model [181], which calculates the hadronic spectrum (2.”