{"arxiv_id":"hep-ph/0406201","title":"Leading-particle suppression in high energy nucleus-nucleus collisions","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_NN} = 200 GeV. Once tuned, the model is coherently 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 calculated. The limits of the eikonal approximation in the BDMPS approach, when applied to finite-energy partons, are discussed.","primary_cat":"hep-ph","cross_cats":["nucl-ex","nucl-th"],"submitted_at":"2004-06-18T09:36:12+00:00","latest_version":3,"source":"arxiv","source_label":"arXiv","source_url":null,"has_pdf":true,"has_source":false,"verdict":"CONDITIONAL","confidence":"HIGH","one_line_summary":"A one-parameter Monte Carlo that couples BDMPS quenching weights to a Wood-Saxon collision geometry reproduces the centrality dependence of high-pt suppression and away-side correlation loss in Au-Au collisions at 200 GeV.","novelty_score":6.0,"correctness_risk":"medium","formal_verification":"none","upvotes":0,"downvotes":0,"pith_score":0.0,"inbound_count":27,"_links":{"html":"https://pith.science/paper/hep-ph/0406201","verdict":"/api/v1/verdicts/hep-ph/0406201"}}