Measurement E9M81
| 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: | 0.45 — 0.6 GeV2 | |
| W: | 1.14 GeV | |
| ε: | 0.818 | |
| 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 | 2.94 | 1.03 | 0.8343 |
| -0.9 | 45.0 | 2.4 | 0.776 | 0.618 |
| -0.9 | 75.0 | 2.31 | 0.687 | 0.2418 |
| -0.9 | 105.0 | 2.65 | 0.713 | 1.5671 |
| -0.9 | 135.0 | 2.59 | 0.752 | 0.502 |
| -0.9 | 165.0 | 2.79 | 0.879 | 0.3396 |
| -0.9 | 195.0 | 3.04 | 0.841 | 0.5703 |
| -0.9 | 225.0 | 3.09 | 0.958 | 0.281 |
| -0.9 | 255.0 | 2.78 | 0.977 | 0.5561 |
| -0.9 | 285.0 | 2.51 | 0.732 | 0.3123 |
| -0.9 | 315.0 | 2.81 | 0.799 | 0.3862 |
| -0.9 | 345.0 | 5.05 | 1.32 | 1.4476 |
| -0.7 | 15.0 | 2.48 | 0.718 | 0.4882 |
| -0.7 | 45.0 | 3.26 | 0.797 | 0.2726 |
| -0.7 | 75.0 | 2.44 | 0.607 | 0.3404 |
| -0.7 | 105.0 | 3.2 | 0.763 | 0.8345 |
| -0.7 | 135.0 | 1.63 | 0.467 | 0.5042 |
| -0.7 | 165.0 | 3.48 | 0.952 | 0.7078 |
| -0.7 | 195.0 | 2.49 | 0.677 | 0.4296 |
| -0.7 | 225.0 | 2.12 | 0.629 | 0.4956 |
| -0.7 | 255.0 | 3.02 | 0.755 | 0.3117 |
| -0.7 | 285.0 | 2.74 | 0.742 | 0.3875 |
| -0.7 | 315.0 | 2.87 | 0.73 | 0.6821 |
| -0.7 | 345.0 | 2.15 | 0.586 | 0.2875 |
| -0.5 | 15.0 | 3.3 | 0.895 | 0.8023 |
| -0.5 | 45.0 | 2.28 | 0.515 | 0.4481 |
| -0.5 | 75.0 | 2.64 | 0.637 | 0.2812 |
| -0.5 | 105.0 | 4.86 | 1.11 | 0.313 |
| -0.5 | 135.0 | 4.19 | 1.0 | 0.3233 |
| -0.5 | 165.0 | 4.95 | 1.18 | 0.6233 |
| -0.5 | 195.0 | 2.99 | 0.669 | 0.4341 |
| -0.5 | 225.0 | 5.59 | 1.24 | 0.943 |
| -0.5 | 255.0 | 5.09 | 1.09 | 0.4303 |
| -0.5 | 285.0 | 3.46 | 0.791 | 0.3963 |
| -0.5 | 315.0 | 2.0 | 0.531 | 0.1503 |
| -0.5 | 345.0 | 1.44 | 0.406 | 0.5462 |
| -0.3 | 15.0 | 2.21 | 0.533 | 0.5035 |
| -0.3 | 45.0 | 2.51 | 0.617 | 0.7236 |
| -0.3 | 75.0 | 4.24 | 0.972 | 0.2943 |
| -0.3 | 105.0 | 3.2 | 0.646 | 1.645 |
| -0.3 | 135.0 | 6.32 | 1.29 | 0.1984 |
| -0.3 | 165.0 | 5.06 | 0.896 | 0.6243 |
| -0.3 | 195.0 | 5.85 | 1.12 | 0.7887 |
| -0.3 | 225.0 | 4.14 | 0.958 | 0.4681 |
| -0.3 | 255.0 | 4.69 | 0.94 | 0.7077 |
| -0.3 | 285.0 | 3.8 | 0.774 | 0.7207 |
| -0.3 | 315.0 | 2.81 | 0.79 | 0.4665 |
| -0.3 | 345.0 | 3.15 | 0.76 | 0.223 |
| -0.1 | 15.0 | 3.21 | 0.796 | 0.5516 |
| -0.1 | 45.0 | 4.11 | 0.947 | 0.3973 |
| -0.1 | 75.0 | 5.3 | 1.16 | 0.5766 |
| -0.1 | 105.0 | 4.58 | 1.01 | 0.9967 |
| -0.1 | 135.0 | 5.86 | 1.09 | 0.5514 |
| -0.1 | 165.0 | 6.56 | 1.17 | 0.8389 |
| -0.1 | 195.0 | 3.87 | 0.782 | 0.4278 |
| -0.1 | 225.0 | 3.8 | 0.864 | 0.1275 |
| -0.1 | 255.0 | 3.71 | 0.802 | 0.4478 |
| -0.1 | 285.0 | 4.64 | 0.906 | 1.3385 |
| -0.1 | 315.0 | 4.55 | 0.93 | 1.4557 |
| -0.1 | 345.0 | 3.52 | 0.776 | 0.4178 |
| 0.1 | 15.0 | 2.46 | 0.649 | 0.3352 |
| 0.1 | 45.0 | 2.65 | 0.601 | 0.2873 |
| 0.1 | 75.0 | 5.42 | 1.07 | 0.3326 |
| 0.1 | 105.0 | 4.78 | 1.04 | 0.4965 |
| 0.1 | 135.0 | 7.64 | 1.36 | 0.4255 |
| 0.1 | 165.0 | 6.98 | 1.25 | 1.1696 |
| 0.1 | 195.0 | 4.7 | 0.894 | 0.2372 |
| 0.1 | 225.0 | 5.82 | 1.11 | 0.7589 |
| 0.1 | 255.0 | 5.63 | 1.15 | 0.3637 |
| 0.1 | 285.0 | 4.53 | 0.882 | 0.6894 |
| 0.1 | 315.0 | 4.44 | 0.968 | 0.6851 |
| 0.1 | 345.0 | 2.71 | 0.635 | 0.9074 |
| 0.3 | 15.0 | 2.82 | 0.77 | 0.9827 |
| 0.3 | 45.0 | 3.06 | 0.7 | 0.6269 |
| 0.3 | 75.0 | 6.85 | 1.41 | 1.1321 |
| 0.3 | 105.0 | 7.48 | 1.57 | 0.5251 |
| 0.3 | 135.0 | 6.01 | 1.26 | 0.4802 |
| 0.3 | 165.0 | 7.04 | 1.21 | 0.26 |
| 0.3 | 195.0 | 4.61 | 0.934 | 0.2848 |
| 0.3 | 225.0 | 6.16 | 1.24 | 1.045 |
| 0.3 | 255.0 | 7.32 | 1.48 | 1.2882 |
| 0.3 | 285.0 | 6.5 | 1.19 | 0.3838 |
| 0.3 | 315.0 | 3.78 | 0.83 | 0.2545 |
| 0.3 | 345.0 | 3.57 | 0.903 | 0.552 |
| 0.5 | 15.0 | 3.28 | 0.737 | 0.5249 |
| 0.5 | 45.0 | 4.03 | 0.869 | 0.1332 |
| 0.5 | 75.0 | 6.58 | 1.29 | 0.7569 |
| 0.5 | 105.0 | 4.77 | 1.06 | 0.477 |
| 0.5 | 135.0 | 7.28 | 1.43 | 0.2688 |
| 0.5 | 165.0 | 8.9 | 1.55 | 0.8338 |
| 0.5 | 195.0 | 5.38 | 1.11 | 0.6954 |
| 0.5 | 225.0 | 7.83 | 1.47 | 1.0143 |
| 0.5 | 255.0 | 5.17 | 1.13 | 0.2855 |
| 0.5 | 285.0 | 3.02 | 0.677 | 0.4059 |
| 0.5 | 315.0 | 3.76 | 0.92 | 0.5959 |
| 0.5 | 345.0 | 3.55 | 0.829 | 0.2703 |
| 0.7 | 15.0 | 2.38 | 0.662 | 0.6097 |
| 0.7 | 45.0 | 3.73 | 0.782 | 0.1641 |
| 0.7 | 75.0 | 4.99 | 1.1 | 0.9733 |
| 0.7 | 105.0 | 3.61 | 0.842 | 0.2262 |
| 0.7 | 135.0 | 6.73 | 1.33 | 1.139 |
| 0.7 | 165.0 | 7.03 | 1.29 | 0.354 |
| 0.7 | 195.0 | 6.27 | 1.12 | 0.7851 |
| 0.7 | 225.0 | 6.37 | 1.17 | 0.6273 |
| 0.7 | 255.0 | 5.61 | 1.03 | 0.522 |
| 0.7 | 285.0 | 5.79 | 1.14 | 0.7077 |
| 0.7 | 315.0 | 3.36 | 0.732 | 0.4959 |
| 0.7 | 345.0 | 2.74 | 0.692 | 0.6347 |
| 0.9 | 15.0 | 5.77 | 1.34 | 0.4959 |
| 0.9 | 45.0 | 4.67 | 1.12 | 0.2958 |
| 0.9 | 75.0 | 5.71 | 1.24 | 0.3315 |
| 0.9 | 105.0 | 5.18 | 1.14 | 0.7265 |
| 0.9 | 135.0 | 8.66 | 1.68 | 0.6561 |
| 0.9 | 165.0 | 7.53 | 1.49 | 0.6037 |
| 0.9 | 195.0 | 4.97 | 1.17 | 0.3489 |
| 0.9 | 225.0 | 4.38 | 1.11 | 0.9074 |
| 0.9 | 255.0 | 7.93 | 2.03 | 2.4059 |
| 0.9 | 285.0 | 4.28 | 1.04 | 0.5836 |
| 0.9 | 315.0 | 4.5 | 1.06 | 0.8428 |
| 0.9 | 345.0 | 3.62 | 0.907 | 0.2973 |
Experiment comment: