Measurement E9M207
| 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: | 0.7 — 0.8 GeV2 | |
| W: | 1.36 GeV | |
| ε: | 0.817 | |
| 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 | 0.346 | 0.157 | 0.0933 |
| -0.9 | 45.0 | 0.241 | 0.147 | 0.0713 |
| -0.9 | 75.0 | 0.692 | 0.258 | 0.1244 |
| -0.9 | 105.0 | 1.1 | 0.394 | 0.1007 |
| -0.9 | 135.0 | 1.4 | 0.551 | 0.1895 |
| -0.9 | 165.0 | 0.401 | 0.143 | 0.4854 |
| -0.9 | 195.0 | 0.576 | 0.235 | 0.2436 |
| -0.9 | 225.0 | 0.425 | 0.19 | 0.0678 |
| -0.9 | 255.0 | 1.37 | 0.534 | 0.2191 |
| -0.9 | 285.0 | 1.03 | 0.404 | 0.1524 |
| -0.9 | 315.0 | 1.49 | 0.577 | 0.3203 |
| -0.9 | 345.0 | 0.421 | 0.234 | 0.0862 |
| -0.7 | 15.0 | 0.83 | 0.265 | 0.1145 |
| -0.7 | 45.0 | 1.07 | 0.321 | 0.1463 |
| -0.7 | 75.0 | 1.34 | 0.43 | 0.3446 |
| -0.7 | 105.0 | 2.41 | 0.729 | 0.4473 |
| -0.7 | 135.0 | 2.38 | 0.82 | 0.7267 |
| -0.7 | 165.0 | 1.11 | 0.339 | 0.222 |
| -0.7 | 195.0 | 2.4 | 0.627 | 0.5415 |
| -0.7 | 225.0 | 2.77 | 0.822 | 0.2001 |
| -0.7 | 255.0 | 3.04 | 0.795 | 0.3097 |
| -0.7 | 285.0 | 1.75 | 0.467 | 0.3504 |
| -0.7 | 315.0 | 1.09 | 0.317 | 0.2466 |
| -0.7 | 345.0 | 1.3 | 0.344 | 0.2876 |
| -0.5 | 15.0 | 1.33 | 0.294 | 0.0922 |
| -0.5 | 45.0 | 1.86 | 0.447 | 0.4034 |
| -0.5 | 75.0 | 3.39 | 0.912 | 0.5405 |
| -0.5 | 105.0 | 3.75 | 1.44 | 0.3138 |
| -0.5 | 135.0 | 2.11 | 1.07 | 0.4646 |
| -0.5 | 165.0 | 1.89 | 0.509 | 0.3954 |
| -0.5 | 195.0 | 1.15 | 0.373 | 0.2159 |
| -0.5 | 225.0 | 2.91 | 1.44 | 1.2778 |
| -0.5 | 255.0 | 2.09 | 0.762 | 0.6059 |
| -0.5 | 285.0 | 2.66 | 0.711 | 0.3512 |
| -0.5 | 315.0 | 3.81 | 0.738 | 0.6934 |
| -0.5 | 345.0 | 1.96 | 0.435 | 0.2343 |
| -0.3 | 15.0 | 2.34 | 0.471 | 0.1955 |
| -0.3 | 45.0 | 3.0 | 0.573 | 0.257 |
| -0.3 | 75.0 | 3.61 | 1.02 | 2.2086 |
| -0.3 | 105.0 | 1.97 | 1.07 | 0.2273 |
| -0.3 | 135.0 | 8.07 | 4.2 | 2.0979 |
| -0.3 | 165.0 | 1.82 | 0.738 | 1.3832 |
| -0.3 | 195.0 | 1.9 | 0.76 | 0.3579 |
| -0.3 | 225.0 | 13.7 | 6.92 | 2.6444 |
| -0.3 | 255.0 | 4.17 | 1.47 | 2.3179 |
| -0.3 | 285.0 | 5.37 | 1.55 | 0.7488 |
| -0.3 | 315.0 | 2.41 | 0.47 | 0.225 |
| -0.3 | 345.0 | 2.16 | 0.428 | 0.1482 |
| -0.1 | 15.0 | 0.95 | 0.222 | 0.0302 |
| -0.1 | 45.0 | 2.53 | 0.468 | 0.1313 |
| -0.1 | 75.0 | 3.81 | 1.37 | 0.6803 |
| -0.1 | 105.0 | 3.01 | 0.942 | 0.2942 |
| -0.1 | 135.0 | 2.6 | 1.33 | 0.8731 |
| -0.1 | 165.0 | 2.38 | 1.26 | 0.3948 |
| -0.1 | 195.0 | 2.83 | 1.17 | 0.8566 |
| -0.1 | 225.0 | 3.72 | 1.52 | 0.7775 |
| -0.1 | 255.0 | 3.54 | 1.03 | 0.819 |
| -0.1 | 285.0 | 6.13 | 1.73 | 1.3382 |
| -0.1 | 315.0 | 2.48 | 0.457 | 0.2836 |
| -0.1 | 345.0 | 1.6 | 0.352 | 0.1875 |
| 0.1 | 15.0 | 1.88 | 0.419 | 0.2917 |
| 0.1 | 45.0 | 2.25 | 0.411 | 0.8034 |
| 0.1 | 75.0 | 4.16 | 1.19 | 0.3556 |
| 0.1 | 105.0 | 3.92 | 0.909 | 0.4747 |
| 0.1 | 135.0 | 3.07 | 0.97 | 0.6289 |
| 0.1 | 165.0 | 6.95 | 4.51 | 1.9239 |
| 0.1 | 195.0 | 2.0 | 1.42 | 0.8845 |
| 0.1 | 225.0 | 3.55 | 1.08 | 0.6832 |
| 0.1 | 255.0 | 4.89 | 1.24 | 0.8076 |
| 0.1 | 285.0 | 4.4 | 1.33 | 0.6599 |
| 0.1 | 315.0 | 2.18 | 0.422 | 0.1723 |
| 0.1 | 345.0 | 0.952 | 0.249 | 0.0502 |
| 0.3 | 15.0 | 1.21 | 0.297 | 0.2958 |
| 0.3 | 45.0 | 2.14 | 0.444 | 0.3189 |
| 0.3 | 75.0 | 2.14 | 0.759 | 0.1979 |
| 0.3 | 105.0 | 3.22 | 0.663 | 0.2161 |
| 0.3 | 135.0 | 3.05 | 0.81 | 0.2854 |
| 0.3 | 165.0 | 1.42 | 1.64 | 1.6326 |
| 0.3 | 195.0 | 4.04 | 5.72 | 1.9755 |
| 0.3 | 225.0 | 4.88 | 1.39 | 1.0027 |
| 0.3 | 255.0 | 5.64 | 1.19 | 0.8019 |
| 0.3 | 285.0 | 3.26 | 0.959 | 0.6122 |
| 0.3 | 315.0 | 3.59 | 0.746 | 0.6881 |
| 0.3 | 345.0 | 1.69 | 0.34 | 0.1137 |
| 0.5 | 15.0 | 1.72 | 0.416 | 0.0415 |
| 0.5 | 45.0 | 1.9 | 0.436 | 0.0458 |
| 0.5 | 75.0 | 3.78 | 1.19 | 0.5803 |
| 0.5 | 105.0 | 2.8 | 0.699 | 0.3268 |
| 0.5 | 135.0 | 3.66 | 0.947 | 0.6382 |
| 0.5 | 165.0 | 2.81 | 2.44 | 3.8882 |
| 0.5 | 195.0 | 3.18 | 2.44 | 6.1136 |
| 0.5 | 225.0 | 4.41 | 1.39 | 0.8768 |
| 0.5 | 255.0 | 2.97 | 0.747 | 0.1535 |
| 0.5 | 285.0 | 1.71 | 0.547 | 0.4849 |
| 0.5 | 315.0 | 1.81 | 0.423 | 0.065 |
| 0.5 | 345.0 | 1.53 | 0.361 | 0.1518 |
| 0.7 | 15.0 | 1.31 | 0.362 | 0.0972 |
| 0.7 | 45.0 | 1.4 | 0.385 | 0.1107 |
| 0.7 | 75.0 | 2.11 | 0.744 | 0.5025 |
| 0.7 | 105.0 | 2.4 | 0.727 | 0.8116 |
| 0.7 | 135.0 | 1.74 | 0.838 | 0.1909 |
| 0.7 | 165.0 | 2.81 | 2.16 | 0.9624 |
| 0.7 | 195.0 | 0.796 | 0.534 | 1.018 |
| 0.7 | 225.0 | 1.72 | 0.589 | 0.382 |
| 0.7 | 255.0 | 7.81 | 2.95 | 2.8775 |
| 0.7 | 285.0 | 1.32 | 0.497 | 0.1135 |
| 0.7 | 315.0 | 1.23 | 0.3 | 0.1405 |
| 0.7 | 345.0 | 0.593 | 0.204 | 0.0153 |
| 0.9 | 15.0 | 1.26 | 0.439 | 0.2315 |
| 0.9 | 45.0 | 1.05 | 0.369 | 0.1441 |
| 0.9 | 75.0 | 0.852 | 0.383 | 0.194 |
| 0.9 | 105.0 | 1.12 | 0.551 | 0.3528 |
| 0.9 | 135.0 | 10.4 | 6.94 | 5.6245 |
| 0.9 | 165.0 | 0.74 | 0.403 | 1.0279 |
| 0.9 | 195.0 | 3.81 | 1.86 | 1.5687 |
| 0.9 | 225.0 | 3.37 | 2.15 | 1.359 |
| 0.9 | 255.0 | 1.1 | 0.578 | 0.2763 |
| 0.9 | 285.0 | 0.916 | 0.427 | 0.1141 |
| 0.9 | 315.0 | 1.03 | 0.33 | 0.1702 |
| 0.9 | 345.0 | 1.23 | 0.412 | 0.1177 |
Experiment comment: