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Summary
RAA for high pT hadroproduction at CERN-SPS energies revisited using a new p+p reference:
(1) RAA(cent) » 1. No Cronin. RAA(cent) < RAA(periph) consistent w/ factor ~1.6 suppress.
(2) (new) RAA consistent w/ (old) Rcp
(3) RAA(cent) in agreement w/ parton Eloss calculations in dense system: dNg/dy » 500 (consistent with estimated εBj »3 GeV/fm3).
(4) (Re)measurement of A+A, p+p at √sNN ≈ 20 GeV desirable (look for onset of suppr.)
RAA at high pT in Au+Au √s = 62.4 GeV
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(1) Current ISR-averaged p+p refs. have uncertainties of order ~30%.
(2) RAA(cent) in agreement w/ parton Eloss in dense system: dNg/dy » 800
(3) More quantitative study of high pT suppression requires actual measurement of p+p at at √s = 62.4 GeV (RHIC Run-5 ?).
Latest RAA at high pT in Au+Au √s = 200 GeV
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(1) Universal suppression for all hadrons (π0, η, h±) above pT~5 GeV/c.
(2) Very high pT suppression (pT>10 GeV/c) in agreement w/ parton Eloss predictions
Excitation function of suppression described by parton Eloss models
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