Measurement E9M230
| Experiment: | E-89-037 Electroproduction of the P33(1232) Resonance | |
|---|---|---|
| Year: | 2002 | |
| Spokespersons: | V. Burkert, R. Minehart | |
| Reaction: | ep → π0p | |
| Polarization: | none | |
| Quantity: | dσ/dΩ | |
| Q2: | 0.8 — 1.0 GeV2 | |
| W: | 1.22 GeV | |
| ε: | 0.831 | |
| Publication: |
K. Joo, L. C. Smith, V. D. Burkert, R. Minehart, I. G. Aznauryan, L. Elouadrhiri, S. Stepanyan, and CLAS Collaboration Q2 Dependence of Quadrupole Strength in the γ*p --> Δ+(1232) --> pπ0 Transition //
Phys. Rev. Let. 88, 122001 (2002)
|
|
| cos(θπ) | φπ, [deg] | dσ/dΩ, [μb/sr] | uncertainty | syst. uncert. |
|---|---|---|---|---|
| -0.9 | 15.0 | 7.38 | 1.08 | 0.5583 |
| -0.9 | 45.0 | 6.65 | 0.956 | 0.638 |
| -0.9 | 75.0 | 6.08 | 0.917 | 0.9628 |
| -0.9 | 105.0 | 4.76 | 0.804 | 0.5092 |
| -0.9 | 135.0 | 5.44 | 0.794 | 0.6474 |
| -0.9 | 165.0 | 4.73 | 0.893 | 0.5481 |
| -0.9 | 195.0 | 3.47 | 0.637 | 0.3134 |
| -0.9 | 225.0 | 6.17 | 1.01 | 0.4346 |
| -0.9 | 255.0 | 5.06 | 0.842 | 0.2171 |
| -0.9 | 285.0 | 8.27 | 1.24 | 0.7442 |
| -0.9 | 315.0 | 4.98 | 0.833 | 0.4136 |
| -0.9 | 345.0 | 5.79 | 0.894 | 0.8423 |
| -0.7 | 15.0 | 6.04 | 0.797 | 0.4509 |
| -0.7 | 45.0 | 9.16 | 1.07 | 0.7794 |
| -0.7 | 75.0 | 9.42 | 1.1 | 0.6063 |
| -0.7 | 105.0 | 9.82 | 1.1 | 1.5627 |
| -0.7 | 135.0 | 10.5 | 1.27 | 1.2891 |
| -0.7 | 165.0 | 3.49 | 0.594 | 0.082 |
| -0.7 | 195.0 | 5.15 | 0.792 | 0.5259 |
| -0.7 | 225.0 | 6.83 | 0.858 | 0.3652 |
| -0.7 | 255.0 | 7.97 | 0.971 | 0.2913 |
| -0.7 | 285.0 | 9.79 | 1.06 | 0.2475 |
| -0.7 | 315.0 | 8.8 | 1.07 | 0.7296 |
| -0.7 | 345.0 | 7.22 | 0.919 | 0.943 |
| -0.5 | 15.0 | 6.63 | 0.756 | 1.1514 |
| -0.5 | 45.0 | 8.31 | 0.889 | 0.691 |
| -0.5 | 75.0 | 13.4 | 1.36 | 0.7228 |
| -0.5 | 105.0 | 10.2 | 1.17 | 0.4091 |
| -0.5 | 135.0 | 8.32 | 1.04 | 0.4789 |
| -0.5 | 165.0 | 6.9 | 0.955 | 0.8233 |
| -0.5 | 195.0 | 4.35 | 0.628 | 0.5529 |
| -0.5 | 225.0 | 8.71 | 0.987 | 0.7522 |
| -0.5 | 255.0 | 13.3 | 1.55 | 1.3077 |
| -0.5 | 285.0 | 13.7 | 1.38 | 0.7826 |
| -0.5 | 315.0 | 10.7 | 1.12 | 0.9101 |
| -0.5 | 345.0 | 7.02 | 0.837 | 0.068 |
| -0.3 | 15.0 | 7.46 | 0.802 | 0.2137 |
| -0.3 | 45.0 | 11.2 | 1.13 | 0.4243 |
| -0.3 | 75.0 | 12.3 | 1.3 | 0.5745 |
| -0.3 | 105.0 | 14.6 | 1.55 | 0.5745 |
| -0.3 | 135.0 | 10.2 | 1.22 | 0.6018 |
| -0.3 | 165.0 | 6.8 | 0.819 | 0.7293 |
| -0.3 | 195.0 | 6.88 | 0.865 | 0.4022 |
| -0.3 | 225.0 | 11.6 | 1.29 | 1.0488 |
| -0.3 | 255.0 | 12.2 | 1.44 | 1.2718 |
| -0.3 | 285.0 | 11.0 | 1.21 | 0.789 |
| -0.3 | 315.0 | 10.3 | 1.04 | 0.2598 |
| -0.3 | 345.0 | 6.52 | 0.726 | 0.1527 |
| -0.1 | 15.0 | 7.18 | 0.881 | 0.5838 |
| -0.1 | 45.0 | 12.0 | 1.17 | 1.3207 |
| -0.1 | 75.0 | 17.9 | 1.75 | 1.1236 |
| -0.1 | 105.0 | 12.3 | 1.44 | 1.1336 |
| -0.1 | 135.0 | 14.5 | 1.75 | 2.1048 |
| -0.1 | 165.0 | 5.27 | 0.661 | 0.6442 |
| -0.1 | 195.0 | 9.33 | 1.1 | 0.9206 |
| -0.1 | 225.0 | 12.6 | 1.47 | 0.3464 |
| -0.1 | 255.0 | 15.8 | 1.83 | 0.3354 |
| -0.1 | 285.0 | 14.6 | 1.47 | 0.433 |
| -0.1 | 315.0 | 9.95 | 0.991 | 0.3556 |
| -0.1 | 345.0 | 7.43 | 0.857 | 0.2739 |
| 0.1 | 15.0 | 5.93 | 0.762 | 0.1364 |
| 0.1 | 45.0 | 9.44 | 0.945 | 0.8498 |
| 0.1 | 75.0 | 15.6 | 1.63 | 0.6423 |
| 0.1 | 105.0 | 13.8 | 1.52 | 1.9975 |
| 0.1 | 135.0 | 15.0 | 1.74 | 1.8748 |
| 0.1 | 165.0 | 9.16 | 1.0 | 0.88 |
| 0.1 | 195.0 | 7.13 | 0.826 | 0.8098 |
| 0.1 | 225.0 | 12.1 | 1.38 | 1.0607 |
| 0.1 | 255.0 | 15.9 | 1.81 | 0.5431 |
| 0.1 | 285.0 | 13.2 | 1.33 | 1.021 |
| 0.1 | 315.0 | 9.6 | 0.995 | 0.1711 |
| 0.1 | 345.0 | 8.05 | 0.873 | 0.1895 |
| 0.3 | 15.0 | 6.89 | 0.8 | 0.191 |
| 0.3 | 45.0 | 9.62 | 0.964 | 0.3499 |
| 0.3 | 75.0 | 14.4 | 1.52 | 0.9721 |
| 0.3 | 105.0 | 17.9 | 2.18 | 1.6155 |
| 0.3 | 135.0 | 10.3 | 1.27 | 0.915 |
| 0.3 | 165.0 | 14.2 | 1.56 | 1.7578 |
| 0.3 | 195.0 | 8.92 | 1.03 | 0.4494 |
| 0.3 | 225.0 | 11.5 | 1.44 | 0.6144 |
| 0.3 | 255.0 | 18.1 | 2.03 | 0.1803 |
| 0.3 | 285.0 | 13.7 | 1.46 | 0.1871 |
| 0.3 | 315.0 | 8.54 | 0.894 | 0.2304 |
| 0.3 | 345.0 | 6.31 | 0.786 | 0.3193 |
| 0.5 | 15.0 | 6.65 | 0.789 | 0.1884 |
| 0.5 | 45.0 | 7.51 | 0.847 | 0.4685 |
| 0.5 | 75.0 | 16.1 | 1.68 | 0.9579 |
| 0.5 | 105.0 | 15.4 | 1.96 | 1.2913 |
| 0.5 | 135.0 | 13.4 | 1.59 | 0.4848 |
| 0.5 | 165.0 | 10.3 | 1.15 | 0.5124 |
| 0.5 | 195.0 | 8.98 | 0.995 | 0.9434 |
| 0.5 | 225.0 | 14.2 | 1.66 | 0.8573 |
| 0.5 | 255.0 | 12.4 | 1.6 | 0.8703 |
| 0.5 | 285.0 | 14.5 | 1.48 | 0.5025 |
| 0.5 | 315.0 | 8.98 | 1.01 | 0.7619 |
| 0.5 | 345.0 | 6.18 | 0.789 | 0.642 |
| 0.7 | 15.0 | 4.45 | 0.61 | 0.5029 |
| 0.7 | 45.0 | 8.11 | 0.921 | 0.4262 |
| 0.7 | 75.0 | 11.0 | 1.31 | 1.1781 |
| 0.7 | 105.0 | 9.46 | 1.26 | 0.6076 |
| 0.7 | 135.0 | 12.1 | 1.55 | 1.0259 |
| 0.7 | 165.0 | 12.6 | 1.41 | 2.0923 |
| 0.7 | 195.0 | 8.36 | 0.987 | 0.8751 |
| 0.7 | 225.0 | 11.7 | 1.33 | 0.6344 |
| 0.7 | 255.0 | 9.7 | 1.25 | 0.5206 |
| 0.7 | 285.0 | 9.63 | 1.06 | 0.477 |
| 0.7 | 315.0 | 8.62 | 0.959 | 0.4993 |
| 0.7 | 345.0 | 3.54 | 0.516 | 0.1253 |
| 0.9 | 15.0 | 5.22 | 0.871 | 0.7642 |
| 0.9 | 45.0 | 6.14 | 0.886 | 0.7301 |
| 0.9 | 75.0 | 7.14 | 0.963 | 0.6425 |
| 0.9 | 105.0 | 7.07 | 1.08 | 0.529 |
| 0.9 | 135.0 | 8.29 | 1.18 | 0.6225 |
| 0.9 | 165.0 | 7.02 | 0.975 | 0.5332 |
| 0.9 | 195.0 | 9.94 | 1.26 | 1.1134 |
| 0.9 | 225.0 | 9.77 | 1.31 | 1.0846 |
| 0.9 | 255.0 | 9.66 | 1.26 | 1.0087 |
| 0.9 | 285.0 | 7.04 | 0.928 | 0.4279 |
| 0.9 | 315.0 | 7.2 | 0.933 | 0.4915 |
| 0.9 | 345.0 | 5.84 | 0.896 | 0.703 |
Experiment comment: