FIG. 1: Transverse momentum spectra of pions (left panel) and protons
(right) produced in Cu+Cu collisions at sNN=200 GeV
PiMinus: Centrality 9 (0-10%)
pT Yield Stat Error
Syst Error
3.125 0.00340533 2.19628e-05
0.000442692
3.375 0.00188929 1.53481e-05
0.000245608
3.625 0.00106576 1.09304e-05
0.000138549
3.875 0.000624308 7.96608e-06
8.11601e-05
4.25 0.000303134 3.69431e-06
3.94074e-05
4.75 0.000116432 2.14585e-06
1.51362e-05
5.25 5.50838e-05 1.37383e-06
7.1609e-06
5.75 2.45944e-05 8.75661e-07
3.19727e-06
6.5 1.025e-05 3.70565e-07
1.3325e-06
7.5 2.69421e-06 1.75735e-07
3.50248e-07
9 8.1389e-07 6.14867e-08
1.05806e-07
PiPlus: Centrality 9 (0-10%)
pT Yield Stat Error
Syst Error
3.125 0.00342419 2.21927e-05
0.000445144
3.375 0.00187288 1.54712e-05
0.000243475
3.625 0.0010894 1.11295e-05
0.000141622
3.875 0.000627231 8.06331e-06
8.154e-05
4.25 0.000296243 3.68488e-06
3.85116e-05
4.75 0.000121142 2.18682e-06
1.57485e-05
5.25 5.1599e-05 1.34301e-06
6.70786e-06
5.75 2.51047e-05 8.93345e-07
3.26362e-06
6.5 9.33227e-06 3.54954e-07
1.2132e-06
7.5 2.8495e-06 1.79955e-07
3.70435e-07
9 9.31596e-07 6.5291e-08
1.21108e-07
Pbar: Centrality 9 (0-10%)
pT Yield Stat Error
Syst Error
3.125 0.00205628 1.95029e-05
0.000534633
3.375 0.00103224 1.30304e-05
0.000268381
3.625 0.000545861 8.97118e-06
0.000141924
3.875 0.000280139 6.1924e-06
7.28361e-05
4.25 0.000122131 2.72029e-06
3.1754e-05
4.75 4.26752e-05 1.51569e-06
1.10955e-05
5.25 1.40906e-05 8.25986e-07
3.66355e-06
5.75 6.27471e-06 5.2483e-07
1.63142e-06
Proton: Centrality 9 (0-10%)
pT Yield Stat Error
Syst Error
3.125 0.00247058 2.03804e-05
0.000642352
3.375 0.00127502 1.38176e-05
0.000331505
3.625 0.000672437 9.51421e-06
0.000174834
3.875 0.000358488 6.67646e-06
9.32068e-05
4.25 0.00015501 2.92717e-06
4.03027e-05
4.75 5.42964e-05 1.62824e-06
1.41171e-05
5.25 2.03148e-05 9.4188e-07
5.28184e-06
5.75 9.65153e-06 6.17678e-07
2.5094e-06
PiMinus: Centrality 8 (10-20%)
pT Yield Stat Error
Syst Error
3.125 0.00251258 1.75089e-05
0.000326636
3.375 0.00137463 1.22111e-05
0.000178702
3.625 0.000793401 8.79424e-06
0.000103142
3.875 0.00047441 6.52111e-06
6.16733e-05
4.25 0.000229541 3.02035e-06
2.98403e-05
4.75 9.10784e-05 1.77419e-06
1.18402e-05
5.25 4.10551e-05 1.12006e-06
5.33717e-06
5.75 1.78466e-05 7.04103e-07
2.32006e-06
6.5 7.13238e-06 2.91924e-07
9.2721e-07
7.5 2.2929e-06 1.52373e-07
2.98077e-07
9 5.06406e-07 4.56458e-08
6.58328e-08
PiPlus: Centrality 8 (10-20%)
pT Yield Stat Error
Syst Error
3.125 0.00256737 1.78557e-05
0.000333759
3.375 0.00141163 1.24489e-05
0.000183512
3.625 0.000805986 8.92985e-06
0.000104778
3.875 0.000468419 6.50602e-06
6.08945e-05
4.25 0.000228575 3.02672e-06
2.97147e-05
4.75 8.84721e-05 1.75972e-06
1.15014e-05
5.25 3.97488e-05 1.10716e-06
5.16734e-06
5.75 1.87749e-05 7.25916e-07
2.44073e-06
6.5 7.79653e-06 3.04859e-07
1.01355e-06
7.5 2.63949e-06 1.62168e-07
3.43134e-07
9 7.04522e-07 5.34411e-08
9.15879e-08
Pbar: Centrality 8 (10-20%)
pT Yield Stat Error
Syst Error
3.125 0.00123112 1.4997e-05
0.000320091
3.375 0.000626678 1.00516e-05
0.000162936
3.625 0.000336102 6.94375e-06
8.73865e-05
3.875 0.00018368 4.94083e-06
4.77567e-05
4.25 7.80802e-05 2.16146e-06
2.03009e-05
4.75 2.40746e-05 1.15887e-06
6.25939e-06
5.25 9.64394e-06 6.56022e-07
2.50742e-06
5.75 3.87766e-06 4.21953e-07
1.00819e-06
Proton: Centrality 8 (10-20%)
pT Yield Stat Error
Syst Error
3.125 0.00154181 1.577e-05
0.00040087
3.375 0.000782756 1.05798e-05
0.000203517
3.625 0.000415374 7.32383e-06
0.000107997
3.875 0.000224703 5.16707e-06
5.84227e-05
4.25 9.99138e-05 2.29618e-06
2.59776e-05
4.75 3.47906e-05 1.2787e-06
9.04557e-06
5.25 1.28201e-05 7.21435e-07
3.33323e-06
5.75 5.577e-06 4.67466e-07
1.45002e-06
PiMinus: Centrality 67 (20-40%)
pT Yield Stat Error
Syst Error
3.125 0.00159413 9.66059e-06
0.000207236
3.375 0.000888743 6.81631e-06
0.000115537
3.625 0.000506099 4.89331e-06
6.57929e-05
3.875 0.000310124 3.66058e-06
4.03161e-05
4.25 0.000150622 1.70144e-06
1.95809e-05
4.75 5.89026e-05 9.97081e-07
7.65734e-06
5.25 2.6613e-05 6.30937e-07
3.45969e-06
5.75 1.2105e-05 4.02126e-07
1.57365e-06
6.5 4.84112e-06 1.6791e-07
6.29346e-07
7.5 1.45273e-06 8.44335e-08
1.88854e-07
9 3.67865e-07 2.69378e-08
4.78225e-08
PiPlus: Centrality 67 (20-40%)
pT Yield Stat Error
Syst Error
3.125 0.00158102 9.72963e-06
0.000205533
3.375 0.00087902 6.82519e-06
0.000114273
3.625 0.000511978 4.95586e-06
6.65571e-05
3.875 0.000301661 3.63862e-06
3.92159e-05
4.25 0.000148114 1.69549e-06
1.92549e-05
4.75 5.82194e-05 9.95239e-07
7.56852e-06
5.25 2.57196e-05 6.20717e-07
3.34355e-06
5.75 1.1927e-05 4.01659e-07
1.55051e-06
6.5 4.68574e-06 1.66224e-07
6.09147e-07
7.5 1.46063e-06 8.50937e-08
1.89882e-07
9 3.60044e-07 2.69994e-08
4.68057e-08
Pbar: Centrality 67 (20-40%)
pT Yield Stat Error
Syst Error
3.125 0.000638012 8.01613e-06
0.000165883
3.375 0.000335178 5.43213e-06
8.71464e-05
3.625 0.000170167 3.72224e-06
4.42435e-05
3.875 9.00505e-05 2.61821e-06
2.34131e-05
4.25 4.10231e-05 1.16658e-06
1.0666e-05
4.75 1.42978e-05 6.50147e-07
3.71742e-06
5.25 5.16223e-06 3.78185e-07
1.34218e-06
5.75 2.36269e-06 2.26052e-07
6.14298e-07
Proton: Centrality 67 (20-40%)
pT Yield Stat Error
Syst Error
3.125 0.000803187 8.44879e-06
0.000208829
3.375 0.000413208 5.6695e-06
0.000107434
3.625 0.000224882 3.97585e-06
5.84693e-05
3.875 0.000118702 2.79707e-06
3.08626e-05
4.25 5.16152e-05 1.23039e-06
1.342e-05
4.75 2.05083e-05 7.1059e-07
5.33217e-06
5.25 7.57361e-06 4.12073e-07
1.96914e-06
5.75 3.15804e-06 2.49608e-07
8.21089e-07
PiMinus: Centrality 45 (40-60%)
pT Yield Stat Error
Syst Error
3.125 0.000750963 6.59931e-06
9.76252e-05
3.375 0.00042865 4.69836e-06
5.57245e-05
3.625 0.000247319 3.40439e-06
3.21515e-05
3.875 0.0001462 2.49825e-06
1.90061e-05
4.25 7.34546e-05 1.18812e-06
9.5491e-06
4.75 3.00444e-05 7.12321e-07
3.90578e-06
5.25 1.27145e-05 4.37316e-07
1.65288e-06
5.75 6.06565e-06 2.86184e-07
7.88534e-07
6.5 2.48133e-06 1.21299e-07
3.22572e-07
7.5 7.11439e-07 6.003e-08
9.24871e-08
9 1.80016e-07 1.93325e-08
2.34021e-08
PiPlus: Centrality 45 (40-60%)
pT Yield Stat Error
Syst Error
3.125 0.000736446 6.57397e-06
9.57379e-05
3.375 0.000421741 4.70198e-06
5.48264e-05
3.625 0.00024325 3.40281e-06
3.16225e-05
3.875 0.00014243 2.48649e-06
1.85159e-05
4.25 7.18054e-05 1.17718e-06
9.33471e-06
4.75 2.79632e-05 6.89538e-07
3.63521e-06
5.25 1.13235e-05 4.15119e-07
1.47206e-06
5.75 5.93661e-06 2.84514e-07
7.7176e-07
6.5 2.15123e-06 1.12861e-07
2.79659e-07
7.5 5.93427e-07 5.53003e-08
7.71455e-08
9 1.33768e-07 1.67267e-08
1.73898e-08
Pbar: Centrality 45 (40-60%)
pT Yield Stat Error
Syst Error
3.125 0.000268236 5.09602e-06
6.97414e-05
3.375 0.000129835 3.39315e-06
3.37571e-05
3.625 7.55909e-05 2.41606e-06
1.96536e-05
3.875 3.81632e-05 1.60126e-06
9.92244e-06
4.25 1.76241e-05 7.53109e-07
4.58228e-06
4.75 6.19069e-06 4.2527e-07
1.60958e-06
5.25 1.77435e-06 2.28651e-07
4.61331e-07
5.75 9.73066e-07 1.48608e-07
2.52997e-07
Proton: Centrality 45 (40-60%)
pT Yield Stat Error
Syst Error
3.125 0.000332686 5.31488e-06
8.64983e-05
3.375 0.000174074 3.65168e-06
4.52593e-05
3.625 9.61638e-05 2.57412e-06
2.50026e-05
3.875 5.22217e-05 1.78389e-06
1.35776e-05
4.25 2.40214e-05 8.21729e-07
6.24556e-06
4.75 8.5488e-06 4.62636e-07
2.22269e-06
5.25 3.39682e-06 2.76192e-07
8.83172e-07
5.75 1.35109e-06 1.64121e-07
3.51284e-07
FIG. 2: Anti-particle to particle ratios (π-/π+ and p(bar)/p) in Cu+Cu
collisions at 200GeV
Centrality 9 (0-10%)
pT π-/π+ Stat Error
Syst Error p(bar)/p
Stat Error Syst Error
3.125 0.994491 0.00909303
0 0.832306
0.0104622 0
3.375 1.00876 0.0116874
0 0.809584
0.0134692 0
3.625 0.978305 0.014162
0 0.811765
0.0176042 0
3.875 0.995341 0.0180285
0 0.781446
0.0225873 0
4.25 1.02326 0.017819
0 0.787889
0.0230073 0
4.75 0.961121 0.0247949
0 0.785968
0.0365347 0
5.25 1.06754 0.0384831
0 0.693613
0.0518399 0
5.75 0.979672 0.0493148
0 0.650126
0.0684695 0
6.5 1.09834 0.057636
0 - -
-
7.5 0.945504 0.0858424
0 - -
-
9 0.873651 0.0900294
0 - -
-
Centrality 8 (10-20%)
pT π-/π+ Stat Error
Syst Error p(bar)/p
Stat Error Syst Error
3.125 0.978659 0.0096352
0 0.798491
0.012701 0
3.375 0.973791 0.0121892
0 0.800604
0.0167927 0
3.625 0.984385 0.0154273
0 0.809155
0.0219772 0
3.875 1.01279 0.0197911
0 0.817435
0.0289277 0
4.25 1.00423 0.0187466
0 0.781476
0.0281166 0
4.75 1.02946 0.0286603
0 0.691985
0.0419093 0
5.25 1.03286 0.0402704
0 0.752251
0.0664116 0
5.75 0.950558 0.0525089
0 0.695295
0.0955035 0
6.5 0.914815 0.0517835
0 - -
-
7.5 0.86869 0.0786197
0 - -
-
9 0.718794 0.084679
0 - -
-
Centrality 67 (20-40%)
pT π-/π+ Stat Error
Syst Error p(bar)/p
Stat Error Syst Error
3.125 1.00829 0.00870856
0 0.79435
0.0130165 0
3.375 1.01106 0.0110345
0 0.811161
0.0172248 0
3.625 0.988518 0.0135244
0 0.756697
0.0212825 0
3.875 1.02805 0.0173499
0 0.758626
0.0283913 0
4.25 1.01693 0.0163546
0 0.794787
0.0294919 0
4.75 1.01173 0.02434
0 0.697169
0.0398561 0
5.25 1.03474 0.0350057
0 0.681608
0.0621998 0
5.75 1.01493 0.0480101
0 0.74815
0.092846 0
6.5 1.03316 0.0512578
0 - -
-
7.5 0.994589 0.0818471
0 - -
-
9 1.02172 0.107089
0 - -
-
Centrality 45 (40-60%)
pT π-/π+ Stat Error
Syst Error p(bar)/p
Stat Error Syst Error
3.125 1.01971 0.0127733
0 0.806275
0.0200138 0
3.375 1.01638 0.0158907
0 0.74586
0.0249954 0
3.625 1.01673 0.0199541
0 0.786064
0.0327716 0
3.875 1.02647 0.0250754
0 0.730793
0.0395398 0
4.25 1.02297 0.0235591
0 0.733686
0.0401602 0
4.75 1.07443 0.0367538
0 0.724159
0.0633284 0
5.25 1.12284 0.0564439
0 0.522357
0.0795925 0
5.75 1.02173 0.0687142
0 0.720208
0.140541 0
6.5 1.15345 0.0827126
0 - -
-
7.5 1.19887 0.150713
0 - -
-
9 1.34574 0.221818
0 - -
-
FIG. 3: RAA, for charged pions (π++π−) in Cu+Cu at sNN=200
GeV. Integrated pion RAA over the range 5< pT <8
GeV/c versus Npart.
Centrality 9 (0-10%) Scale Uncertainty = 16.2%
pT RAA Stat Error
Syst Error
3.125 0.727501 0.00471504
0.0945752
3.375 0.696277 0.00575167
0.0905159
3.625 0.687532 0.00702398
0.0893792
3.875 0.653973 0.0084071
0.0850165
4.25 0.626831 0.00779697
0.081488
4.75 0.612029 0.0110482
0.0795637
5.25 0.579616 0.0150862
0.0753501
5.75 0.590212 0.0210025
0.0767276
Centrality 8 (10-20%) Scale Uncertainty = 15.9%
pT RAA Stat Error
Syst Error
3.125 0.832777 0.00579184
0.108261
3.375 0.801227 0.00706588
0.104159
3.625 0.776601 0.00860427
0.100958
3.875 0.745642 0.0103565
0.0969334
4.25 0.738403 0.00977771
0.0959924
4.75 0.682412 0.0135732
0.0887135
5.25 0.68169 0.0189877
0.0886197
5.75 0.673895 0.0260556
0.0876064
Centrality 67 (20-40%) Scale Uncertainty = 15.4%
pT RAA Stat Error
Syst Error
3.125 1.00765 0.00620113
0.130995
3.375 0.98032 0.00761175
0.127442
3.625 0.969296 0.00938262
0.126009
3.875 0.943518 0.0113807
0.122657
4.25 0.94015 0.010762
0.12222
4.75 0.882355 0.0150835
0.114706
5.25 0.866687 0.0209166
0.112669
5.75 0.841164 0.0283275
0.109351
Centrality 45 (40-60%) Scale Uncertainty = 15.1%
pT RAA Stat Error
Syst Error
3.125 1.29986 0.0116033
0.168981
3.375 1.30255 0.0145221
0.169332
3.625 1.27538 0.0178412
0.165799
3.875 1.23371 0.0215376
0.160382
4.25 1.26223 0.020693
0.16409
4.75 1.17366 0.028941
0.152576
5.25 1.05672 0.0387392
0.137374
5.75 1.1595 0.0555693
0.150735
Pion RAA at 200GeV for pT > 5 GeV/c
Centrality Bin RAA Stat Error
Syst Error
0-10% 0.593156 0.00647657
0.0910423
10-20% 0.724833 0.010141
0.109149
20-40% 0.880833 0.0133214
0.128421
40-60% 1.10749 0.0314757
0.156764
FIG. 4: RAA for protons and anti-protons (p + pbar) in Cu+Cu at sNN=200
GeV. Integrated (anti)proton RAA over the range 5< pT <6
GeV/c versus Npart.
Proton RAA at 200GeV
Centrality 9 (0-10%) Scale Uncertainty = 16.2%
pT RAA Stat Error
Syst Error
3.125 1.29369 0.0106719
0.336359
3.375 1.20968 0.0131096
0.314518
3.625 1.12415 0.0159054
0.292278
3.875 1.02912 0.0191663
0.267572
4.25 0.95816 0.0180936
0.249121
4.75 0.867229 0.0260064
0.225479
5.25 0.779445 0.0361384
0.202656
5.75 0.835182 0.0534499
0.217147
Centrality 8 (10-20%) Scale Uncertainty = 15.9%
pT RAA Stat Error
Syst Error
3.125 1.2326 0.0126074
0.320477
3.375 1.13382 0.0153249
0.294793
3.625 1.06017 0.0186927
0.275643
3.875 0.984837 0.0226465
0.256058
4.25 0.942901 0.0216694
0.245154
4.75 0.848376 0.0311813
0.220578
5.25 0.75098 0.0422605
0.195255
5.75 0.736798 0.0617587
0.191567
Centrality 67 (20-40%) Scale Uncertainty = 15.4%
pT RAA Stat Error
Syst Error
3.125 1.26167 0.0132716
0.328034
3.375 1.17604 0.0161361
0.30577
3.625 1.12778 0.0199388
0.293223
3.875 1.02223 0.0240876
0.265781
4.25 0.957092 0.0228149
0.248844
4.75 0.982634 0.0340471
0.255485
5.25 0.871715 0.0474293
0.226646
5.75 0.819785 0.064795
0.213144
Centrality 45 (40-60%) Scale Uncertainty = 15.1%
pT RAA Stat Error
Syst Error
3.125 1.44725 0.0231208
0.376284
3.375 1.37204 0.0287824
0.356731
3.625 1.33555 0.0357502
0.347244
3.875 1.24544 0.0425441
0.323814
4.25 1.23354 0.0421973
0.320721
4.75 1.13435 0.0613876
0.294931
5.25 1.08274 0.0880366
0.281513
5.75 0.971288 0.117985
0.252535
FIG. 5: Ratio of protons and anti-protons to charged pions, versus
transverse momentum, for Cu+Cu collisions at sNN=200 GeV.
Average (p +pbar)=(π++ π−) ratio for 3< pT <4 GeV/c is shown as
function of c
Baryon-to-meson ratio (p+pbar)/(π++π-)at 200GeV
Centrality 9 (0-10%)
pT Ratio Stat Error
Syst Error
3.125 0.662839 0.00512282
0.172338
3.375 0.613277 0.00617294
0.159452
3.625 0.565294 0.00731836
0.146976
3.875 0.510273 0.00861949
0.132671
4.25 0.462382 0.00778791
0.120219
4.75 0.408174 0.0107417
0.106125
5.25 0.322501 0.0131005
0.0838504
5.75 0.320453 0.0181945
0.0833177
Centrality 8 (10-20%)
pT Ratio Stat Error
Syst Error
3.125 0.545856 0.005057
0.141922
3.375 0.50585 0.00612011
0.131521
3.625 0.469853 0.00730572
0.122162
3.875 0.433145 0.00868364
0.112618
4.25 0.388535 0.00778042
0.101019
4.75 0.327848 0.0106393
0.0852404
5.25 0.278007 0.0132282
0.0722818
5.75 0.258172 0.0186152
0.0671248
Centrality 67 (20-40%)
pT Ratio Stat Error
Syst Error
3.125 0.4539 0.00415886
0.118014
3.375 0.423352 0.00500649
0.110072
3.625 0.388035 0.005972
0.100889
3.875 0.341219 0.00689239
0.0887169
4.25 0.310101 0.00619915
0.0806261
4.75 0.297178 0.00896665
0.0772664
5.25 0.243363 0.0114528
0.0632744
5.75 0.229724 0.0150291
0.0597283
Centrality 45 (40-60%)
pT Ratio Stat Error
Syst Error
3.125 0.404006 0.00555947
0.105042
3.375 0.357375 0.00649334
0.0929176
3.625 0.350113 0.00797434
0.0910294
3.875 0.313151 0.00914337
0.0814193
4.25 0.286696 0.0083533
0.0745411
4.75 0.254096 0.0116711
0.0660649
5.25 0.215124 0.0158623
0.0559324
5.75 0.193643 0.0195622
0.0503472
Baryon-to-meson ratio (p+pbar)/(π++π-)at 200GeV
Integrated over 3 < pT < 4GeV/c
Centrality Bin Npart Ratio
Stat+Syst Error
0-10% 99 0.589579
0.121724
10-20% 74.55 0.492114
0.101621
20-40% 45.86 0.399981
0.082714
40-60% 21.54 0.352735
0.0730073
For any questions please contact STAR Physics Analysis
Co-ordinator :
Bedanga Mohanty - bedanga@rcf.rhic.bnl.gov