K_{eff] (upper panel), PHOBOS p+p, 5% overall scale error (band) energy (GeV) K_{eff} sys. error ===================================================================== 200 2.44 0.08 410 2.66 0.1 delta (lower panel), PHOBOS p+p, 3% overall scale error (band) energy (GeV) delta sys. error ===================================================================== 200 0.66 0.03 410 0.67 0.03 K_{eff] (upper panel), other experiments and models ========================================================================== experiment/model energy (GeV) K_{eff} sys. error ISR 23 2.22 0.17 ISR 53 2.21 0.16 ISR 63 2.24 +0.2/-0.13 SPS-UA5 200 2.55 0.11 SPS-UA5 540 2.63 0.1 SPS-UA5 900 2.67 0.1 -------------------------------------------------------------------------- model energy (GeV) K_{eff} stat. error PYTHIA 200 1.72 0.01 PYTHIA 410 1.77 0.01 HIJING 200 1.93 0.01 HIJING 410 2.11 0.01 delta (lower panel), other experiments and models ========================================================================== experiment energy (GeV) delta sys. error ISR 23 0.68 0.08 ISR 53 0.67 0.06 ISR 63 0.62 0.05 SPS-UA5 200 0.76 0.04 SPS-UA5 540 0.72 0.03 SPS-UA5 900 0.66 0.04 -------------------------------------------------------------------------- model energy (GeV) delta stat. error PYTHIA 200 0.632 0.003 PYTHIA 410 0.625 0.003 HIJING 200 0.661 0.004 HIJING 410 0.642 0.003