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Hadron composition at high-pT (4): h/p ratio
Central colls.: h/p ~ 2.5 at intermediate pT's (enhanced baryon production)
Peripheral colls.: h/p ~ 1.6 as in p+p (perturbative ratio)
Since h± = p± + p(pbar) + K± proton (antiproton) non perturbative enhancement limited to pT < 5 GeV/c
Notes: