Measurement E9M14
| 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: | 0.35 — 0.45 GeV2 | |
| W: | 1.36 GeV | |
| ε: | 0.751 | |
| 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 | 0.857 | 0.338 | 0.144 |
| -0.9 | 45.0 | 1.64 | 0.53 | 0.3756 |
| -0.9 | 75.0 | 2.65 | 0.902 | 0.7382 |
| -0.9 | 105.0 | 2.06 | 0.837 | 0.4605 |
| -0.9 | 135.0 | 1.29 | 0.491 | 0.275 |
| -0.9 | 165.0 | 0.969 | 0.383 | 0.0293 |
| -0.9 | 195.0 | 2.78 | 1.03 | 0.328 |
| -0.9 | 225.0 | 1.54 | 0.564 | 0.4839 |
| -0.9 | 255.0 | 2.51 | 0.837 | 0.477 |
| -0.9 | 285.0 | 2.85 | 0.896 | 0.6752 |
| -0.9 | 315.0 | 1.76 | 0.58 | 0.472 |
| -0.9 | 345.0 | 0.366 | 0.159 | 0.1087 |
| -0.7 | 15.0 | 1.18 | 0.288 | 0.1895 |
| -0.7 | 45.0 | 2.1 | 0.478 | 0.3176 |
| -0.7 | 75.0 | 3.37 | 0.871 | 0.2882 |
| -0.7 | 105.0 | 2.27 | 0.929 | 0.5663 |
| -0.7 | 135.0 | 3.14 | 1.61 | 0.5485 |
| -0.7 | 165.0 | 1.25 | 0.5 | 0.1217 |
| -0.7 | 195.0 | 1.37 | 0.55 | 0.4114 |
| -0.7 | 225.0 | 2.86 | 1.63 | 0.8688 |
| -0.7 | 255.0 | 0.901 | 0.467 | 0.5036 |
| -0.7 | 285.0 | 2.41 | 0.76 | 0.1642 |
| -0.7 | 315.0 | 2.06 | 0.444 | 0.397 |
| -0.7 | 345.0 | 2.13 | 0.51 | 0.3783 |
| -0.5 | 15.0 | 1.89 | 0.347 | 0.309 |
| -0.5 | 45.0 | 3.91 | 0.732 | 0.4926 |
| -0.5 | 75.0 | 4.03 | 1.08 | 0.7222 |
| -0.5 | 105.0 | 2.96 | 0.825 | 0.374 |
| -0.5 | 135.0 | 3.27 | 1.0 | 1.3677 |
| -0.5 | 165.0 | 2.97 | 2.02 | 1.7211 |
| -0.5 | 195.0 | 1.81 | 1.17 | 1.2198 |
| -0.5 | 225.0 | 7.5 | 2.33 | 1.4068 |
| -0.5 | 255.0 | 6.61 | 1.71 | 1.0138 |
| -0.5 | 285.0 | 5.33 | 1.37 | 0.4829 |
| -0.5 | 315.0 | 4.38 | 0.774 | 0.3853 |
| -0.5 | 345.0 | 1.47 | 0.307 | 0.2031 |
| -0.3 | 15.0 | 2.19 | 0.354 | 0.1427 |
| -0.3 | 45.0 | 4.28 | 0.813 | 0.3119 |
| -0.3 | 75.0 | 4.83 | 1.12 | 0.367 |
| -0.3 | 105.0 | 4.35 | 0.793 | 0.1561 |
| -0.3 | 135.0 | 4.04 | 0.818 | 0.4094 |
| -0.3 | 165.0 | 8.7 | 3.76 | 22.6268 |
| -0.3 | 195.0 | 2.88 | 2.28 | 1.0115 |
| -0.3 | 225.0 | 4.1 | 0.859 | 0.2637 |
| -0.3 | 255.0 | 4.88 | 0.805 | 0.5591 |
| -0.3 | 285.0 | 7.65 | 1.6 | 0.402 |
| -0.3 | 315.0 | 3.76 | 0.695 | 0.204 |
| -0.3 | 345.0 | 2.75 | 0.448 | 0.2791 |
| -0.1 | 15.0 | 3.28 | 0.501 | 0.1223 |
| -0.1 | 45.0 | 4.57 | 0.794 | 0.1048 |
| -0.1 | 75.0 | 5.85 | 1.17 | 0.7723 |
| -0.1 | 105.0 | 5.08 | 0.752 | 0.1412 |
| -0.1 | 135.0 | 5.12 | 0.85 | 0.2382 |
| -0.1 | 165.0 | 2.8 | 1.59 | 0.4584 |
| -0.1 | 195.0 | 4.25 | 1.96 | 1.2314 |
| -0.1 | 225.0 | 5.0 | 0.86 | 0.442 |
| -0.1 | 255.0 | 5.68 | 0.841 | 0.074 |
| -0.1 | 285.0 | 4.68 | 0.901 | 0.0771 |
| -0.1 | 315.0 | 2.74 | 0.544 | 0.399 |
| -0.1 | 345.0 | 2.64 | 0.443 | 0.0791 |
| 0.1 | 15.0 | 2.92 | 0.486 | 0.1082 |
| 0.1 | 45.0 | 5.24 | 0.887 | 0.1356 |
| 0.1 | 75.0 | 6.07 | 0.99 | 0.3298 |
| 0.1 | 105.0 | 6.43 | 0.909 | 0.2423 |
| 0.1 | 135.0 | 4.52 | 0.754 | 0.1785 |
| 0.1 | 165.0 | 3.47 | 1.67 | 3.0884 |
| 0.1 | 195.0 | 9.33 | 4.22 | 1.5091 |
| 0.1 | 225.0 | 4.2 | 0.821 | 0.5739 |
| 0.1 | 255.0 | 6.36 | 0.869 | 0.3385 |
| 0.1 | 285.0 | 5.27 | 0.902 | 0.197 |
| 0.1 | 315.0 | 4.19 | 0.679 | 0.3556 |
| 0.1 | 345.0 | 2.61 | 0.43 | 0.0658 |
| 0.3 | 15.0 | 2.15 | 0.38 | 0.1813 |
| 0.3 | 45.0 | 2.93 | 0.569 | 0.0644 |
| 0.3 | 75.0 | 6.74 | 1.02 | 0.4222 |
| 0.3 | 105.0 | 4.62 | 0.703 | 0.1853 |
| 0.3 | 135.0 | 5.21 | 1.0 | 0.2249 |
| 0.3 | 195.0 | 1.36 | 1.46 | 1.896 |
| 0.3 | 225.0 | 4.75 | 0.932 | 0.7972 |
| 0.3 | 255.0 | 6.18 | 0.914 | 0.674 |
| 0.3 | 285.0 | 3.11 | 0.563 | 0.3646 |
| 0.3 | 315.0 | 4.15 | 0.792 | 0.3339 |
| 0.3 | 345.0 | 2.49 | 0.426 | 0.171 |
| 0.5 | 15.0 | 2.17 | 0.42 | 0.0999 |
| 0.5 | 45.0 | 1.91 | 0.431 | 0.37 |
| 0.5 | 75.0 | 2.49 | 0.516 | 0.3527 |
| 0.5 | 105.0 | 4.2 | 0.661 | 0.3637 |
| 0.5 | 135.0 | 2.84 | 0.694 | 0.6591 |
| 0.5 | 165.0 | 15.4 | 13.4 | 9.5693 |
| 0.5 | 195.0 | 4.09 | 5.01 | 3.7863 |
| 0.5 | 225.0 | 5.57 | 1.22 | 0.9718 |
| 0.5 | 255.0 | 5.02 | 0.744 | 0.3582 |
| 0.5 | 285.0 | 4.25 | 0.687 | 0.7385 |
| 0.5 | 315.0 | 3.53 | 0.801 | 0.7542 |
| 0.5 | 345.0 | 1.91 | 0.352 | 0.2115 |
| 0.7 | 15.0 | 1.75 | 0.339 | 0.1684 |
| 0.7 | 45.0 | 2.61 | 0.563 | 0.5134 |
| 0.7 | 75.0 | 2.37 | 0.479 | 0.174 |
| 0.7 | 105.0 | 2.64 | 0.524 | 0.1568 |
| 0.7 | 135.0 | 5.04 | 1.53 | 1.0644 |
| 0.7 | 195.0 | 6.33 | 5.19 | 3.2437 |
| 0.7 | 225.0 | 2.92 | 0.739 | 0.4943 |
| 0.7 | 255.0 | 2.14 | 0.383 | 0.9411 |
| 0.7 | 285.0 | 1.78 | 0.43 | 0.0784 |
| 0.7 | 315.0 | 1.8 | 0.427 | 0.1464 |
| 0.7 | 345.0 | 2.15 | 0.418 | 0.1704 |
| 0.9 | 15.0 | 1.78 | 0.483 | 0.4201 |
| 0.9 | 45.0 | 2.06 | 0.555 | 0.4275 |
| 0.9 | 75.0 | 0.898 | 0.348 | 0.1808 |
| 0.9 | 105.0 | 1.78 | 0.537 | 0.1619 |
| 0.9 | 135.0 | 1.5 | 0.568 | 0.6834 |
| 0.9 | 165.0 | 2.9 | 2.22 | 2.0525 |
| 0.9 | 195.0 | 0.694 | 0.744 | 1.1417 |
| 0.9 | 225.0 | 0.665 | 0.412 | 0.2926 |
| 0.9 | 255.0 | 2.45 | 0.703 | 0.9389 |
| 0.9 | 285.0 | 1.08 | 0.401 | 0.2688 |
| 0.9 | 315.0 | 2.6 | 0.733 | 0.4446 |
| 0.9 | 345.0 | 1.42 | 0.394 | 0.4288 |
Experiment comment: