Measurement E9M2
| 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: | 1.12 GeV | |
| ε: | 0.871 | |
| 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 | 3.71 | 1.44 | 0.9777 |
| -0.9 | 45.0 | 2.59 | 0.916 | 0.8864 |
| -0.9 | 75.0 | 1.63 | 0.705 | 0.2802 |
| -0.9 | 105.0 | 2.42 | 1.06 | 0.4359 |
| -0.9 | 135.0 | 1.99 | 0.833 | 0.3415 |
| -0.9 | 165.0 | 0.804 | 0.381 | 0.9886 |
| -0.9 | 195.0 | 1.3 | 0.571 | 0.313 |
| -0.9 | 225.0 | 4.69 | 1.84 | 0.8102 |
| -0.9 | 255.0 | 1.6 | 0.805 | 0.2922 |
| -0.9 | 285.0 | 1.08 | 0.674 | 0.5589 |
| -0.9 | 315.0 | 2.12 | 0.973 | 0.5581 |
| -0.9 | 345.0 | 4.24 | 1.61 | 0.9049 |
| -0.7 | 15.0 | 3.4 | 1.3 | 0.6802 |
| -0.7 | 45.0 | 1.47 | 0.676 | 0.6145 |
| -0.7 | 75.0 | 1.67 | 0.568 | 0.275 |
| -0.7 | 105.0 | 1.71 | 0.631 | 0.5792 |
| -0.7 | 135.0 | 2.71 | 0.937 | 0.3332 |
| -0.7 | 165.0 | 1.69 | 0.603 | 0.5869 |
| -0.7 | 195.0 | 2.74 | 0.859 | 0.2969 |
| -0.7 | 225.0 | 3.15 | 0.997 | 0.5158 |
| -0.7 | 255.0 | 2.02 | 0.738 | 0.3397 |
| -0.7 | 285.0 | 2.04 | 0.674 | 0.3488 |
| -0.7 | 315.0 | 2.6 | 1.04 | 0.8506 |
| -0.7 | 345.0 | 3.06 | 1.05 | 0.7256 |
| -0.5 | 15.0 | 2.37 | 0.829 | 0.6714 |
| -0.5 | 45.0 | 1.8 | 0.681 | 0.2244 |
| -0.5 | 75.0 | 1.74 | 0.579 | 0.222 |
| -0.5 | 105.0 | 2.38 | 0.685 | 0.2102 |
| -0.5 | 135.0 | 2.56 | 0.718 | 0.7635 |
| -0.5 | 165.0 | 5.3 | 1.45 | 0.8633 |
| -0.5 | 195.0 | 3.12 | 0.784 | 1.1033 |
| -0.5 | 225.0 | 2.99 | 0.95 | 0.1885 |
| -0.5 | 255.0 | 4.61 | 1.24 | 0.8531 |
| -0.5 | 285.0 | 3.31 | 0.996 | 0.2486 |
| -0.5 | 315.0 | 2.25 | 0.759 | 0.2894 |
| -0.5 | 345.0 | 0.906 | 0.489 | 1.2221 |
| -0.3 | 15.0 | 2.97 | 1.14 | 0.7445 |
| -0.3 | 45.0 | 2.7 | 0.969 | 0.5608 |
| -0.3 | 75.0 | 2.08 | 0.66 | 0.1083 |
| -0.3 | 105.0 | 3.1 | 0.969 | 0.4508 |
| -0.3 | 135.0 | 4.66 | 1.24 | 1.1141 |
| -0.3 | 165.0 | 3.78 | 0.987 | 1.4509 |
| -0.3 | 195.0 | 5.32 | 1.53 | 1.2257 |
| -0.3 | 225.0 | 3.63 | 0.987 | 0.2925 |
| -0.3 | 255.0 | 4.64 | 1.11 | 0.3794 |
| -0.3 | 285.0 | 4.72 | 1.43 | 0.8222 |
| -0.3 | 315.0 | 2.27 | 0.735 | 0.2678 |
| -0.3 | 345.0 | 1.66 | 0.629 | 0.2877 |
| -0.1 | 15.0 | 0.736 | 0.323 | 0.2384 |
| -0.1 | 45.0 | 1.54 | 0.64 | 0.3913 |
| -0.1 | 75.0 | 4.63 | 1.38 | 1.0048 |
| -0.1 | 105.0 | 3.99 | 1.16 | 0.2307 |
| -0.1 | 135.0 | 4.48 | 1.1 | 0.4331 |
| -0.1 | 165.0 | 3.55 | 1.03 | 0.5915 |
| -0.1 | 195.0 | 4.83 | 1.38 | 0.8276 |
| -0.1 | 225.0 | 2.66 | 0.894 | 0.5663 |
| -0.1 | 255.0 | 2.83 | 0.932 | 0.3659 |
| -0.1 | 285.0 | 3.32 | 1.02 | 0.5602 |
| -0.1 | 315.0 | 2.44 | 0.935 | 0.6687 |
| -0.1 | 345.0 | 1.26 | 0.559 | 0.0658 |
| 0.1 | 15.0 | 2.16 | 0.783 | 0.1771 |
| 0.1 | 45.0 | 0.944 | 0.383 | 0.1744 |
| 0.1 | 75.0 | 2.89 | 0.857 | 0.2671 |
| 0.1 | 105.0 | 4.37 | 1.06 | 1.2895 |
| 0.1 | 135.0 | 7.02 | 1.55 | 0.6612 |
| 0.1 | 165.0 | 8.49 | 1.83 | 1.0199 |
| 0.1 | 195.0 | 3.72 | 1.06 | 0.3912 |
| 0.1 | 225.0 | 4.11 | 0.977 | 0.7868 |
| 0.1 | 255.0 | 2.87 | 0.867 | 0.4285 |
| 0.1 | 285.0 | 4.65 | 1.34 | 0.3451 |
| 0.1 | 315.0 | 2.49 | 0.821 | 0.5191 |
| 0.1 | 345.0 | 2.03 | 0.769 | 0.4026 |
| 0.3 | 15.0 | 2.47 | 0.856 | 0.3408 |
| 0.3 | 45.0 | 4.38 | 1.49 | 1.0086 |
| 0.3 | 75.0 | 2.81 | 0.792 | 0.4675 |
| 0.3 | 105.0 | 6.33 | 1.63 | 0.9214 |
| 0.3 | 135.0 | 2.97 | 0.926 | 0.0989 |
| 0.3 | 165.0 | 6.65 | 1.48 | 1.3878 |
| 0.3 | 195.0 | 6.37 | 1.44 | 0.4478 |
| 0.3 | 225.0 | 4.67 | 1.28 | 0.758 |
| 0.3 | 255.0 | 3.24 | 0.958 | 0.2818 |
| 0.3 | 285.0 | 5.41 | 1.34 | 0.7238 |
| 0.3 | 315.0 | 2.75 | 0.832 | 0.4867 |
| 0.3 | 345.0 | 4.52 | 1.45 | 0.9915 |
| 0.5 | 15.0 | 3.58 | 1.43 | 1.1715 |
| 0.5 | 45.0 | 2.79 | 0.753 | 0.2867 |
| 0.5 | 75.0 | 4.51 | 1.2 | 0.7966 |
| 0.5 | 105.0 | 3.28 | 0.938 | 0.1659 |
| 0.5 | 135.0 | 5.25 | 1.2 | 0.2795 |
| 0.5 | 165.0 | 4.69 | 1.09 | 1.5435 |
| 0.5 | 195.0 | 6.41 | 1.59 | 2.2527 |
| 0.5 | 225.0 | 4.96 | 1.2 | 0.6709 |
| 0.5 | 255.0 | 3.22 | 0.957 | 0.3465 |
| 0.5 | 285.0 | 3.14 | 0.977 | 0.9636 |
| 0.5 | 315.0 | 2.69 | 0.924 | 0.3628 |
| 0.5 | 345.0 | 1.65 | 0.612 | 0.4294 |
| 0.7 | 15.0 | 2.04 | 0.723 | 0.2911 |
| 0.7 | 45.0 | 1.15 | 0.437 | 0.4995 |
| 0.7 | 75.0 | 4.41 | 1.09 | 0.253 |
| 0.7 | 105.0 | 7.26 | 1.87 | 1.0201 |
| 0.7 | 135.0 | 5.61 | 1.33 | 1.0918 |
| 0.7 | 165.0 | 4.08 | 1.09 | 0.6973 |
| 0.7 | 195.0 | 7.73 | 1.61 | 0.8928 |
| 0.7 | 225.0 | 3.95 | 1.04 | 0.4342 |
| 0.7 | 255.0 | 3.15 | 0.932 | 0.478 |
| 0.7 | 285.0 | 5.56 | 1.68 | 1.0541 |
| 0.7 | 315.0 | 2.18 | 0.725 | 0.6062 |
| 0.7 | 345.0 | 1.45 | 0.53 | 0.5279 |
| 0.9 | 15.0 | 2.67 | 1.06 | 0.624 |
| 0.9 | 45.0 | 4.12 | 1.37 | 0.7969 |
| 0.9 | 75.0 | 7.85 | 2.26 | 1.2594 |
| 0.9 | 105.0 | 5.05 | 1.41 | 1.4678 |
| 0.9 | 135.0 | 4.64 | 1.41 | 0.6452 |
| 0.9 | 165.0 | 7.75 | 1.85 | 1.6388 |
| 0.9 | 195.0 | 4.64 | 1.28 | 1.6423 |
| 0.9 | 225.0 | 10.9 | 2.96 | 3.0047 |
| 0.9 | 255.0 | 3.92 | 1.22 | 0.6953 |
| 0.9 | 285.0 | 1.55 | 0.594 | 0.7428 |
| 0.9 | 315.0 | 2.74 | 0.863 | 0.3356 |
| 0.9 | 345.0 | 3.17 | 0.978 | 0.8847 |
Experiment comment: