Strange particle production in p+p collisions at sqrt(s) = 200 GeV
B.I. Abelev et al., Phys. Rev. C 75, 064901 (2007)

Figure 8: Corrected mid-rapidity pt-spectra for K0_short, K-, K+, Lambda,Lambda-bar, Xi{-},Xi{+}-bar, Omega{-}

** Note the (anti) Lambda spectra data points in the table below are not corrected for feeddown. To obtain the feedown spectra the data points needs to be scaled by a constant factor of 0.87 -- Added on 14th August 2010.

fig 8. K^0_short pt-spectra
pT (GeV) (2pi*pt)^-1 dN^2/dydpt dN2/dydpt error(stat+syst)
0.264712 9.450693e-02 1.083105e-02
0.351386 8.428343e-02 8.619222e-03
0.448699 5.985572e-02 3.344795e-03
0.548592 4.256469e-02 1.855213e-03
0.648409 2.905828e-02 1.262771e-03
0.748219 2.023203e-02 8.853511e-04
0.848181 1.390110e-02 6.451209e-04
0.948093 9.356103e-03 4.666288e-04
1.093663 5.683391e-03 2.487966e-04
1.294079 2.632125e-03 1.617945e-04
1.493092 1.476409e-03 1.248477e-04
1.692651 8.274778e-04 8.914326e-05
1.893145 4.028623e-04 5.001850e-05
2.093157 2.296632e-04 1.975087e-05
2.292858 1.307401e-04 1.198653e-05
2.494731 7.523826e-05 8.758633e-06
2.691709 4.429280e-05 4.587994e-06
2.893091 2.533013e-05 3.375297e-06
3.209558 1.345321e-05 1.445964e-06
3.714001 2.719873e-06 4.852118e-07
4.222623 1.486436e-06 3.189167e-07
4.736432 6.420951e-07 2.048063e-07
fig 8. k- (kink) pt-spectra
pT (GeV) (2pi*pt)^-1 dN^2/dydpt dN2/dydpt error(stat+syst)
0.250000 1.182605e-01 1.586194e-02
0.350000 7.469183e-02 9.166660e-03
0.450000 5.828065e-02 5.160243e-03
0.550000 4.217863e-02 8.339929e-03
0.650000 3.165451e-02 3.378506e-03
0.750000 1.764729e-02 4.886263e-03
0.900000 1.014986e-02 3.382111e-03
1.100000 5.017771e-03 1.648691e-03
1.300000 2.467936e-03 5.562075e-04
1.500000 1.359964e-03 2.764314e-04
1.800000 6.415048e-04 8.446194e-05
2.200000 1.138796e-04 8.058133e-05
fig 8. k+ (kink) pt-spectra
pT (GeV) (2pi*pt)^-1 dN^2/dydpt dN2/dydpt error(stat+syst)
0.250000 1.054165e-01 1.412239e-02
0.350000 8.238629e-02 1.008496e-02
0.450000 6.377035e-02 5.617577e-03
0.550000 4.658788e-02 9.213326e-03
0.650000 3.054706e-02 3.240839e-03
0.750000 2.168096e-02 5.988369e-03
0.900000 1.301061e-02 4.332621e-03
1.100000 5.480997e-03 1.802605e-03
1.300000 2.286501e-03 5.183121e-04
1.500000 1.145025e-03 2.424743e-04
1.800000 5.905220e-04 7.808142e-05
2.200000 1.576201e-04 1.124800e-04
fig 8. Lambda pt-spectra
pT (GeV) (2pi*pt)^-1 dN^2/dydpt dN2/dydpt error(stat+syst)
0.359648 1.321663e-02 2.355987e-03
0.455307 1.582853e-02 1.448805e-03
0.552871 1.303799e-02 9.020289e-04
0.651165 1.039944e-02 5.891577e-04
0.750571 7.828585e-03 3.942583e-04
0.849795 6.033929e-03 2.977785e-04
0.949912 4.571959e-03 2.319653e-04
1.100253 3.009635e-03 1.472349e-04
1.296736 1.713836e-03 9.551969e-05
1.494037 1.017040e-03 6.669277e-05
1.693487 5.187644e-04 4.367657e-05
1.893906 2.603382e-04 2.326946e-05
2.093966 1.365516e-04 1.172591e-05
2.293646 7.967421e-05 7.402367e-06
2.495399 4.027119e-05 4.774431e-06
2.691130 2.625064e-05 2.866159e-06
2.891804 1.388881e-05 1.802848e-06
3.216536 6.561832e-06 8.010884e-07
3.714125 1.870503e-06 3.867888e-07
4.222609 6.707401e-07 2.480785e-07
4.759009 1.367511e-07 8.494550e-08
fig 8. Lambda-bar pt-spectra
pT (GeV) (2pi*pt)^-1 dN^2/dydpt dN2/dydpt error(stat+syst)
0.361759 1.363474e-02 2.261507e-03
0.456849 1.495103e-02 1.391529e-03
0.553726 1.081676e-02 7.318101e-04
0.652369 9.804841e-03 5.465345e-04
0.751672 7.660471e-03 3.946256e-04
0.851443 5.498281e-03 2.768230e-04
0.950822 4.078726e-03 2.048751e-04
1.101329 2.600858e-03 1.292621e-04
1.296153 1.549991e-03 8.687169e-05
1.495007 8.209732e-04 5.465675e-05
1.693536 4.336851e-04 3.676794e-05
1.893250 2.186831e-04 1.963014e-05
2.094034 1.314709e-04 1.111813e-05
2.293173 7.060573e-05 6.605797e-06
2.494397 3.599687e-05 4.185620e-06
2.694576 1.954302e-05 2.568663e-06
2.892928 1.207110e-05 1.735513e-06
3.203833 4.285585e-06 6.787249e-07
3.716495 1.840104e-06 3.570877e-07
4.212298 6.989325e-07 2.238603e-07
4.730710 1.693594e-07 9.741360e-08
fig 8. Xi^{-} pt-spectra
pT (GeV) (2pi*pt)^-1 dN^2/dydpt dN2/dydpt error(stat+syst)
0.670926 4.742680e-04 2.544140e-04
0.906943 3.248150e-04 8.395600e-05
1.131330 2.095820e-04 4.767300e-05
1.373210 1.061090e-04 2.443300e-05
1.615300 7.186560e-05 1.034100e-05
1.872460 2.546160e-05 5.566000e-06
2.120270 1.821910e-05 3.417000e-06
2.367200 8.311920e-06 1.811000e-06
2.596590 3.995660e-06 1.252000e-06
2.865350 1.925920e-06 7.640000e-07
3.378820 7.079200e-07 2.570000e-07
fig 8. Xi-bar^{+} pt-spectra
pT (GeV) (2pi*pt)^-1 dN^2/dydpt dN2/dydpt error(stat+syst)
0.689319 5.985230e-04 1.246010e-04
0.902943 3.167500e-04 5.707500e-05
1.132030 2.339210e-04 4.666700e-05
1.371900 1.125190e-04 2.268100e-05
1.610820 5.362500e-05 9.017000e-06
1.883240 2.636500e-05 5.152000e-06
2.107400 2.083700e-05 3.332000e-06
2.365310 7.036020e-06 1.581000e-06
2.634240 4.247220e-06 9.950001e-07
2.849700 2.044620e-06 8.600000e-07
3.336550 7.234670e-07 2.260000e-07
fig 8. Omega^{-} pt-spectra
pT (GeV) (2pi*pt)^-1 dN^2/dydpt dN2/dydpt error(stat+syst)
1.058025 3.907845e-05 2.496787e-05
1.837500 5.990580e-06 3.470661e-06
2.832353 6.870623e-07 4.559092e-07

Figure 10: Anti-Baryon to Baryon ratios vs Strangeness and pT

fig 10a. B-bar/B ratio vs Strangeness Content
Baryon name B-bar/B ratio error (stat+syst)
Proton 0.800000 0.010000
Lambda 0.880000 0.030000
Xi 0.920000 0.060000
Omega 1.050000 0.300000
fig 10b. Lambda-bar/Lambda ratio vs pT
pT (GeV/c) B-bar/B ratio error (stat only)
0.359648 1.031635 0.210451
0.455307 0.944562 0.106121
0.552871 0.829634 0.068271
0.651165 0.942824 0.066432
0.750571 0.978526 0.065408
0.849795 0.911227 0.060391
0.949912 0.892118 0.059973
1.100253 0.864177 0.044782
1.296736 0.904399 0.054681
1.494037 0.807218 0.058234
1.693487 0.835996 0.075824
1.893906 0.839996 0.093345
2.093966 0.962793 0.078144
2.293646 0.886180 0.091484
2.495399 0.893862 0.126834
2.691130 0.744478 0.114825
2.891804 0.869124 0.165290
3.216536 0.653108 0.125265
3.714125 0.983748 0.253952
4.222609 1.042032 0.420118
4.759009 1.238450 0.907280
fig 10c. Xi-bar/Xi ratio vs pT
pT (GeV/c) B-bar/B ratio error (stat only)
0.650000 1.295850 0.371069
0.900000 0.973490 0.197172
1.125000 1.115730 0.169755
1.375000 1.066000 0.170923
1.625000 0.746777 0.115958
1.875000 1.042810 0.216825
2.125000 1.134270 0.239790
2.375000 0.848441 0.248073
2.625000 1.085900 0.387554
2.875000 1.044250 0.557730
3.500000 1.006650 0.449756

Figure 11: Mean-Pt vs particle mass

200 GeV p+p data (red)
particle name mean-pT (GeV/c) error (stat only)
pi- 0.348000 0.018000
K- 0.605000 0.073000
K0 0.600000 0.030000
rho^{0} 0.640000 0.060000
K*{0} 0.810000 0.140000
p-bar 0.683000 0.041000
phi 0.820000 0.050000
lambda 0.780000 0.040000
lambda-bar 0.760000 0.040000
Xi{-} 0.924000 0.130000
Xi-bar{+} 0.881000 0.130000
sigma(1385) 1.020000 0.080000
lambda(1520) 1.080000 0.110000
omega+Omega-bar 1.080000 0.300000
200 GeV Au+Au (black) ref[]
pi- 0.429000 0.022000
K- 0.717000 0.050000
K0 0.800000 0.050000
rho^{0} 0.830000 0.100000
K*{0} 1.080000 0.120000
p-bar 1.105000 0.069000
phi 0.970000 0.097000
lambda 1.050000 0.090000
Xi{-} 1.110000 0.090000
sigma(1385) 1.280000 0.170000
Omega 1.260000 0.090000

Figure 12: Mean-Pt vs uncorrected dNch/deta a

fig 12. mean(pt)(K0s) vs dN_charge/d{eta}
uncorrected dNch/deta mean(pt) GeV/c error (stat only)
1.275721 0.525282 0.021011
2.247583 0.545681 0.021827
3.212020 0.562121 0.022485
4.414565 0.594203 0.023768
6.116848 0.628564 0.025143
9.006046 0.681906 0.027276
fig 12. mean(pt)(Lambda) vs dN_charge/d{eta}
uncorrected dNch/deta mean(pt) GeV/c error (stat only)
1.275721 0.652018 0.032601
2.247583 0.666764 0.033338
3.212020 0.702527 0.035126
4.414565 0.761154 0.038058
6.116848 0.795166 0.039758
9.006046 0.849218 0.042461
fig 12. mean(pt)(K+/K-) vs dN_charge/d{eta}
uncorrected dNch/deta mean(pt) GeV/c error (stat only)
1.500000 0.578000 0.057000
5.000000 0.605000 0.057000
8.800000 0.653000 0.057000
fig 12. mean(pt)(Xi) vs dN_charge/d{eta}
uncorrected dNch/deta mean(pt) GeV/c error (stat only)
1.500000 0.957000 0.153000
3.300000 0.966000 0.107000
6.600000 1.100000 0.200000

Figure 13: Pt-Spectra of K0s and Lambda vs uncorrected dNch/deta

fig 13a. Fscale(pt)(K0s) vs uncorr. dNch/deta
nch = 1.97
pT (GeV/c) F_scale(K0s) error (stat only)
0.350000 1.040989 0.059022
0.450000 0.968785 0.043487
0.550000 0.962775 0.038307
0.650000 0.935009 0.036296
0.750000 0.903495 0.035645
0.850000 0.889088 0.036903
0.950000 0.844838 0.037026
1.100000 0.772966 0.028660
1.300000 0.707972 0.033107
1.500000 0.669843 0.041365
1.700000 0.658969 0.052863
1.900000 0.596906 0.059805
2.100000 0.608753 0.048584
2.300000 0.547937 0.055690
2.500000 0.533750 0.068839
2.700000 0.508061 0.076742
2.900000 0.417315 0.082336
3.250000 0.362560 0.062874
3.750000 0.304223 0.106508
4.250000 0.216878 0.123488
nch = 4.68
pT (GeV/c) F_scale(K0s) error (stat only)
0.350000 1.053969 0.057519
0.450000 1.027846 0.044151
0.550000 1.025497 0.039035
0.650000 1.048555 0.038472
0.750000 1.035497 0.038645
0.850000 1.034319 0.040642
0.950000 1.045547 0.042942
1.100000 1.049493 0.035949
1.300000 1.069031 0.045145
1.500000 1.050362 0.059618
1.700000 1.063749 0.079776
1.900000 1.048731 0.093848
2.100000 1.072234 0.066121
2.300000 1.050160 0.081809
2.500000 1.146005 0.109912
2.700000 1.078838 0.109918
2.900000 1.231272 0.146973
3.250000 1.061923 0.112763
3.750000 0.861864 0.149128
4.250000 0.784648 0.210397
nch = 9.01
pT (GeV/c) F_scale(K0s) error (stat only)
0.350000 0.915846 0.068128
0.450000 1.146545 0.061051
0.550000 1.134953 0.053795
0.650000 1.110932 0.051782
0.750000 1.209264 0.054692
0.850000 1.236071 0.058978
0.950000 1.295490 0.063262
1.100000 1.401058 0.055390
1.300000 1.451599 0.071423
1.500000 1.605028 0.100884
1.700000 1.643700 0.135606
1.900000 1.778816 0.174772
2.100000 1.793158 0.146095
2.300000 2.275022 0.195178
2.500000 1.854464 0.226649
2.700000 2.442539 0.265156
2.900000 2.025122 0.318840
3.250000 2.212492 0.281743
3.750000 2.357196 0.456542
4.250000 2.828563 0.662638
fig 13b. Fscale(pt)(Lambda) vs uncorr. dNch/deta
nch = 1.97
pT (GeV/c) F_scale(Lambda) error (stat only)
0.350000 0.774246 0.163013
0.450000 1.061637 0.089447
0.550000 0.971006 0.068220
0.650000 0.935102 0.055448
0.750000 0.864250 0.047679
0.850000 0.838361 0.046134
0.950000 0.780790 0.044480
1.100000 0.720043 0.032011
1.300000 0.649847 0.034335
1.500000 0.564716 0.036604
1.700000 0.505372 0.044066
1.900000 0.455814 0.048102
2.100000 0.459611 0.048740
2.300000 0.443367 0.062587
2.500000 0.336330 0.063633
2.700000 0.413871 0.084559
2.900000 0.323613 0.097719
3.250000 0.248138 0.085555
3.750000 0.215449 0.128247
4.250000 0.081698 0.216936
nch = 4.68
pT (GeV/c) F_scale(Lambda) error (stat only)
0.350000 1.021500 0.162493
0.450000 0.982463 0.077176
0.550000 1.025011 0.061816
0.650000 1.059458 0.053335
0.750000 1.044340 0.047803
0.850000 1.085885 0.050179
0.950000 1.105688 0.051585
1.100000 1.077433 0.039447
1.300000 1.029550 0.044896
1.500000 1.080941 0.054321
1.700000 1.121154 0.070844
1.900000 1.102432 0.082969
2.100000 1.098598 0.077020
2.300000 1.020963 0.094447
2.500000 0.996942 0.108673
2.700000 1.179268 0.135613
2.900000 1.122220 0.171116
3.250000 1.228925 0.157809
3.750000 0.700989 0.209042
4.250000 0.905210 0.348537
nch = 9.01
pT (GeV/c) F_scale(Lambda) error (stat only)
0.350000 1.931627 0.327986
0.450000 1.174615 0.116398
0.550000 1.192594 0.093218
0.650000 1.100637 0.077103
0.750000 1.217854 0.073678
0.850000 1.262850 0.076329
0.950000 1.255126 0.078814
1.100000 1.407487 0.067770
1.300000 1.532486 0.084963
1.500000 1.634744 0.102733
1.700000 1.823810 0.139236
1.900000 1.820991 0.164070
2.100000 2.040271 0.174954
2.300000 2.226079 0.238152
2.500000 2.346700 0.286537
2.700000 2.491864 0.348259
2.900000 2.379863 0.463383
3.250000 2.515312 0.393955
3.750000 3.474943 0.813583
4.250000 3.132650 1.187584
fig 13c. Lambda/K0s vs uncorr. dNch/deta
nch = 1.97
pT (GeV/c) Lambda/K0s error (stat only)
0.650000 0.341675 0.015393
0.750000 0.366342 0.014711
0.850000 0.397459 0.014799
0.950000 0.436664 0.015744
1.100000 0.482316 0.012717
1.300000 0.573230 0.015809
1.500000 0.544855 0.019639
1.700000 0.466616 0.026419
1.900000 0.527144 0.034135
2.100000 0.511287 0.038776
2.300000 0.516944 0.050886
2.500000 0.417255 0.067841
2.700000 0.486354 0.076785
2.900000 0.407588 0.110988
3.250000 0.333481 0.121963
3.750000 0.354085 0.222837
4.250000 0.159276 0.900995
nch = 4.68
pT (GeV/c) Lambda/K0s error (stat only)
0.550000 0.306721 0.012198
0.650000 0.345194 0.010489
0.750000 0.386248 0.009637
0.850000 0.442522 0.009997
0.950000 0.499661 0.010156
1.100000 0.531551 0.008288
1.300000 0.601438 0.010306
1.500000 0.665099 0.011563
1.700000 0.641269 0.014377
1.900000 0.725664 0.018209
2.100000 0.693849 0.022694
2.300000 0.621104 0.029201
2.500000 0.576046 0.033454
2.700000 0.652618 0.036680
2.900000 0.479052 0.045036
3.250000 0.563885 0.037549
3.750000 0.406657 0.099374
4.250000 0.487782 0.129668
nch = 9.01
pT (GeV/c) Lambda/K0s error (stat only)
0.550000 0.322451 0.022631
0.650000 0.338475 0.021576
0.750000 0.385697 0.018419
0.850000 0.430640 0.018708
0.950000 0.457762 0.019415
1.100000 0.520142 0.014854
1.300000 0.659301 0.017530
1.500000 0.658250 0.019311
1.700000 0.675105 0.023281
1.900000 0.706683 0.028054
2.100000 0.770521 0.033180
2.300000 0.625122 0.036291
2.500000 0.837940 0.045751
2.700000 0.609096 0.046929
2.900000 0.617675 0.069487
3.250000 0.553947 0.053406
3.750000 0.737069 0.083224
4.250000 0.468270 0.120079

Figure 20: Particle yield ratios vs THERMUS model calculations

200 GeV p+p data
particle ratio data error(data) THERMUS Data-Fit (abs) Data-Fit (sigma)
pi-/pi+ 0.988 0.14 0.981542 0.653642 0.0461285
k-/k+ 0.942 0.077 0.96065 -1.97984 -0.242209
p-bar/p 0.828 0.139 0.810379 2.12814 0.12677
k-/pi- 0.101 0.012 0.10876 -7.68316 -0.646666
p-bar/pi-0.0683 0.0109 0.0812386 -18.9438 -1.18703
lam-bar/lam 0.909 0.121 0.860192 5.36941 0.403372
lam-bar/pi+ 0.0275 0.0037 0.0224691 18.2942 1.3597
xi-/lam 0.0705 0.0217 0.0848213 -20.3139 -0.659968
xi+/pi+ 0.0019 0.00073 0.00200073 -5.30158 -0.137986
omega/xi- 0.0602 0.038 0.0889621 -47.7776 -0.756897

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