| Figure 10 | Figure 11 | Figure 12 | Figure 13 | Figure 14 |
Unlike-sign pair invariant mass distribution.
| m_{ee} (GeV/c2) | Counts | Stat. Error |
| 4.25 | 0 | 0 |
| 4.75 | 0 | 0 |
| 5.25 | 1 | 1 |
| 5.75 | 3 | 1.73205 |
| 6.25 | 4 | 2 |
| 6.75 | 14 | 3.74166 |
| 7.25 | 19 | 4.3589 |
| 7.75 | 28 | 5.2915 |
| 8.25 | 30 | 5.47723 |
| 8.75 | 39 | 6.245 |
| 9.25 | 56 | 7.48331 |
| 9.75 | 40 | 6.32456 |
| 10.25 | 36 | 6 |
| 10.75 | 29 | 5.38516 |
| 11.25 | 14 | 3.74166 |
| 11.75 | 17 | 4.12311 |
| 12.25 | 13 | 3.60555 |
| 12.75 | 21 | 4.58258 |
| 13.25 | 11 | 3.31662 |
| 13.75 | 12 | 3.4641 |
| 14.25 | 6 | 2.44949 |
| 14.75 | 6 | 2.44949 |
| 15.25 | 2 | 1.41421 |
| 15.75 | 6 | 2.44949 |
Like-sign pair invariant mass distribution.
| m_{ee}(GeV/c2) | Counts | Stat. Error |
| 4.25 | 0 | 0 |
| 4.75 | 0 | 0 |
| 5.25 | 0 | 0 |
| 5.75 | 5.65685 | 2.44949 |
| 6.25 | 6.9282 | 2.82843 |
| 6.75 | 10.9545 | 3.60555 |
| 7.25 | 17.5499 | 4.24264 |
| 7.75 | 25.2982 | 5.09902 |
| 8.25 | 34.2929 | 5.91608 |
| 8.75 | 24.98 | 5 |
| 9.25 | 26.9815 | 5.19615 |
| 9.75 | 22.9783 | 5.2915 |
| 10.25 | 18.4391 | 4.69042 |
| 10.75 | 19.5959 | 4.47214 |
| 11.25 | 17.8885 | 4.24264 |
| 11.75 | 11.4891 | 3.74166 |
| 12.25 | 14 | 3.74166 |
| 12.75 | 12.9615 | 3.60555 |
| 13.25 | 5.2915 | 2.82843 |
| 13.75 | 4 | 2.23607 |
| 14.25 | 2.82843 | 1.73205 |
| 14.75 | 5.65685 | 2.44949 |
| 15.25 | 4 | 2.23607 |
| 15.75 | 0 | 0 |
Background subtracted unlike-sign invariant mass distribution.
| m_{ee} (GeV/c2) | Counts | Stat. Error |
| 4.25 | 0 | 0 |
| 4.75 | 0 | 0 |
| 5.25 | 1 | 1 |
| 5.75 | -2.65685 | 3 |
| 6.25 | -2.9282 | 3.4641 |
| 6.75 | 3.04555 | 5.19615 |
| 7.25 | 1.45007 | 6.08276 |
| 7.75 | 2.70178 | 7.34847 |
| 8.25 | -4.29286 | 8.06226 |
| 8.75 | 14.02 | 8 |
| 9.25 | 29.0185 | 9.11043 |
| 9.75 | 17.0217 | 8.24621 |
| 10.25 | 17.5609 | 7.61577 |
| 10.75 | 9.40408 | 7 |
| 11.25 | -3.88854 | 5.65685 |
| 11.75 | 5.51087 | 5.56776 |
| 12.25 | -1 | 5.19615 |
| 12.75 | 8.03852 | 5.83095 |
| 13.25 | 5.7085 | 4.3589 |
| 13.75 | 8 | 4.12311 |
| 14.25 | 3.17157 | 3 |
| 14.75 | 0.343146 | 3.4641 |
| 15.25 | -2 | 2.64575 |
| 15.75 | 6 | 2.44949 |
Coordinates of the 2-sigma contour plot for the cross section of Drell-Yan pairs (first column) and bottom-antibottom quark pairs (second column).
| Drell-Yan dsigma/dy (pb) | bottom-antibottom dsigma/dy (pb) |
| 0 | 15.247 |
| 0.295626 | 7.6235 |
| 0.591251 | -8.88178e-016 |
| 15.8497 | 0 |
| 37.8426 | 0 |
| 50.0323 | 9.69972e-010 |
| 62.222 | 1.93994e-009 |
| 74.4118 | 2.90992e-009 |
| 86.6015 | 3.87989e-009 |
| 76.7189 | 7.99561 |
| 66.5111 | 15.5717 |
| 56.2074 | 23.0143 |
| 45.693 | 30.1562 |
| 34.887 | 36.9271 |
| 23.7574 | 43.1517 |
| 12.177 | 48.5448 |
| 1.59182e-007 | 52.406 |
| 1.19386e-007 | 43.1162 |
| 7.95908e-008 | 33.8265 |
| 3.97954e-008 | 24.5368 |
Coordinates of the 1-sigma contour plot for the cross section of Drell-Yan pairs (first column) and bottom-antibottom quark pairs (second column).
| Drell-Yan dsigma/dy (pb) | bottom-antibottom dsigma/dy (pb) |
| 13.4631 | 0.00219176 |
| 19.5579 | 0.00164382 |
| 25.6527 | 0.00109588 |
| 37.8424 | 0 |
| 43.9373 | 2.86591e-008 |
| 50.0322 | 5.73183e-008 |
| 56.1271 | 8.59774e-008 |
| 62.222 | 1.14637e-007 |
| 57.944 | 2.56734 |
| 53.5851 | 4.99465 |
| 49.1629 | 7.30522 |
| 44.6576 | 9.44926 |
| 40.0344 | 11.3856 |
| 35.2973 | 13.0236 |
| 25.4235 | 14.7266 |
| 20.0042 | 13.8133 |
| 15.6803 | 10.421 |
| 14.4391 | 8.0093 |
| 13.7389 | 5.38883 |
| 13.4515 | 2.70316 |
Measurement of Branching ratio * Upsilon(1S+2S+3S) cross section, dsigma/dy, (pb) in the kinematic region |y|<0.5.
| Our result | Stat. Error | Syst. Error (+) | Syst. Error (-) |
| 114 | 38 | 23 | 24 |
Background subtracted unlike-sign yield (counts) vs. electron-positron pair rapidity in the mass region 8 < m < 11 GeV/c2.
| y_{ee} | Counts | Stat. Error |
| -1.75 | 0 | 0 |
| -1.25 | 2 | 1.41421 |
| -0.75 | 8.33939 | 9.11043 |
| -0.25 | 38.718 | 13.4536 |
| 0.25 | 42.9533 | 13.9284 |
| 0.75 | 9.75097 | 8.83176 |
| 1.25 | -1.89898 | 2.82843 |
| 1.75 | 0 | 0 |
Our measurement is the same as Fig. 13. The data from other experiments is listed for reference.
The Upsilon data presented here was originally tabulated in R. Vogt, J/ψ production and suppression, Phys. Rep. 310 (1999) 197-260 with some updates. The pp cross sections are extracted from pA assuming a linear A dependence.
| Beam | Target | √s (GeV) | B×dσϒ/dy|y=0 (pb/N) | Reference |
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| p | A | 23.7 | .14 ± .03 | J.K. Yoh et al., Phys. Rev. Lett. 41 (1978) 684-687 |
| p | Pt | 27.4 | .44 ± .06 | K. Ueno et al., Phys. Rev. Lett. 42 (1979) 486-489 |
| p | Fe | 27.4 | .48 ± .06 | S. Childress et al., Phys. Rev. Lett. 55 (1985) 1962 |
| p | Be | 38.7 | 2.3 ± .4 | T. Yoshida et al., Phys. Rev. D 39 (1989) 3516-3519 |
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| p | p | 62.4 | 9 ± 2.2 | A.L.S. Angelis et al., Phys. Lett. B 87 (1979) 398-402 |
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For any questions please contact STAR Physics Analysis Co-ordinator : Bedanga Mohanty - bedanga@rcf.rhic.bnl.gov