Measurement E9M120
| 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: | 0.6 — 0.7 GeV2 | |
| W: | 1.34 GeV | |
| ε: | 0.635 | |
| 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 | 0.624 | 0.264 | 0.2566 |
| -0.9 | 45.0 | 0.612 | 0.299 | 0.0747 |
| -0.9 | 75.0 | 0.398 | 0.294 | 0.2523 |
| -0.9 | 105.0 | 0.804 | 0.346 | 0.6291 |
| -0.9 | 135.0 | 0.572 | 0.358 | 0.0692 |
| -0.9 | 165.0 | 0.709 | 0.555 | 0.5383 |
| -0.9 | 195.0 | 1.36 | 0.658 | 0.2974 |
| -0.9 | 225.0 | 0.724 | 0.456 | 0.3804 |
| -0.9 | 255.0 | 0.955 | 0.475 | 0.4942 |
| -0.9 | 285.0 | 1.47 | 0.83 | 0.5325 |
| -0.9 | 315.0 | 0.486 | 0.262 | 0.2826 |
| -0.9 | 345.0 | 1.46 | 0.687 | 0.1322 |
| -0.7 | 15.0 | 2.04 | 0.642 | 0.6284 |
| -0.7 | 45.0 | 1.34 | 0.493 | 0.1479 |
| -0.7 | 75.0 | 5.72 | 1.62 | 0.9293 |
| -0.7 | 105.0 | 2.43 | 1.12 | 0.2554 |
| -0.7 | 135.0 | 1.09 | 0.59 | 0.5469 |
| -0.7 | 165.0 | 1.52 | 0.736 | 0.8143 |
| -0.7 | 195.0 | 1.05 | 0.659 | 0.3889 |
| -0.7 | 225.0 | 4.07 | 1.63 | 1.2578 |
| -0.7 | 255.0 | 2.04 | 0.79 | 0.3661 |
| -0.7 | 285.0 | 1.24 | 0.476 | 0.5536 |
| -0.7 | 315.0 | 2.75 | 0.744 | 0.2792 |
| -0.7 | 345.0 | 0.994 | 0.356 | 0.1993 |
| -0.5 | 15.0 | 3.34 | 0.875 | 0.6063 |
| -0.5 | 45.0 | 2.64 | 0.698 | 0.1146 |
| -0.5 | 75.0 | 6.53 | 1.85 | 1.2895 |
| -0.5 | 105.0 | 2.2 | 0.678 | 2.0519 |
| -0.5 | 135.0 | 3.2 | 1.6 | 0.7516 |
| -0.5 | 165.0 | 7.74 | 3.39 | 1.8018 |
| -0.5 | 195.0 | 2.47 | 1.18 | 0.5694 |
| -0.5 | 225.0 | 2.13 | 1.09 | 1.2886 |
| -0.5 | 255.0 | 2.38 | 0.874 | 0.7535 |
| -0.5 | 285.0 | 3.63 | 0.994 | 0.3557 |
| -0.5 | 315.0 | 2.58 | 0.751 | 0.3759 |
| -0.5 | 345.0 | 1.53 | 0.425 | 0.1525 |
| -0.3 | 15.0 | 2.97 | 0.737 | 0.6329 |
| -0.3 | 45.0 | 2.34 | 0.686 | 0.4862 |
| -0.3 | 75.0 | 5.81 | 1.39 | 0.6302 |
| -0.3 | 105.0 | 5.16 | 1.39 | 0.225 |
| -0.3 | 135.0 | 2.81 | 1.05 | 0.384 |
| -0.3 | 165.0 | 1.05 | 1.11 | 0.2713 |
| -0.3 | 195.0 | 2.68 | 1.51 | 0.7863 |
| -0.3 | 225.0 | 2.48 | 1.02 | 0.7033 |
| -0.3 | 255.0 | 4.19 | 1.15 | 0.2771 |
| -0.3 | 285.0 | 4.12 | 1.13 | 0.4383 |
| -0.3 | 315.0 | 4.01 | 1.0 | 0.4617 |
| -0.3 | 345.0 | 3.69 | 0.831 | 0.3787 |
| -0.1 | 15.0 | 3.56 | 0.823 | 0.782 |
| -0.1 | 45.0 | 2.94 | 0.714 | 0.1307 |
| -0.1 | 75.0 | 3.85 | 0.903 | 0.409 |
| -0.1 | 105.0 | 8.99 | 2.05 | 0.5296 |
| -0.1 | 135.0 | 5.74 | 1.51 | 3.7073 |
| -0.1 | 165.0 | 3.95 | 4.35 | 1.1181 |
| -0.1 | 195.0 | 5.95 | 5.45 | 5.1086 |
| -0.1 | 225.0 | 4.29 | 1.26 | 0.5656 |
| -0.1 | 255.0 | 4.83 | 1.38 | 0.8519 |
| -0.1 | 285.0 | 4.58 | 1.1 | 0.3715 |
| -0.1 | 315.0 | 8.39 | 1.75 | 1.1641 |
| -0.1 | 345.0 | 2.32 | 0.59 | 0.3351 |
| 0.1 | 15.0 | 2.34 | 0.578 | 0.1607 |
| 0.1 | 45.0 | 3.64 | 0.883 | 0.4083 |
| 0.1 | 75.0 | 5.03 | 1.29 | 0.8375 |
| 0.1 | 105.0 | 4.8 | 1.06 | 0.6458 |
| 0.1 | 135.0 | 4.56 | 1.08 | 0.3733 |
| 0.1 | 165.0 | 0.975 | 1.04 | 0.7117 |
| 0.1 | 195.0 | 22.4 | 27.5 | 18.4574 |
| 0.1 | 225.0 | 2.97 | 0.871 | 0.2624 |
| 0.1 | 255.0 | 6.24 | 1.56 | 0.7426 |
| 0.1 | 285.0 | 4.16 | 0.984 | 0.5674 |
| 0.1 | 315.0 | 2.53 | 0.606 | 0.2197 |
| 0.1 | 345.0 | 3.13 | 0.784 | 0.2353 |
| 0.3 | 15.0 | 3.15 | 0.699 | 0.3667 |
| 0.3 | 45.0 | 3.13 | 0.819 | 0.2482 |
| 0.3 | 75.0 | 3.08 | 0.816 | 0.194 |
| 0.3 | 105.0 | 5.05 | 1.1 | 0.2776 |
| 0.3 | 135.0 | 2.92 | 0.826 | 0.2772 |
| 0.3 | 165.0 | 2.94 | 1.98 | 2.1812 |
| 0.3 | 195.0 | 8.43 | 6.02 | 2.1236 |
| 0.3 | 225.0 | 3.56 | 1.06 | 0.2977 |
| 0.3 | 255.0 | 7.49 | 1.87 | 1.4054 |
| 0.3 | 285.0 | 2.78 | 0.795 | 0.2267 |
| 0.3 | 315.0 | 2.42 | 0.629 | 1.0367 |
| 0.3 | 345.0 | 2.76 | 0.655 | 0.2812 |
| 0.5 | 15.0 | 4.83 | 1.15 | 0.6877 |
| 0.5 | 45.0 | 1.75 | 0.489 | 0.1264 |
| 0.5 | 75.0 | 1.92 | 0.563 | 0.486 |
| 0.5 | 105.0 | 6.73 | 1.66 | 1.1154 |
| 0.5 | 135.0 | 3.1 | 0.881 | 1.442 |
| 0.5 | 165.0 | 4.76 | 5.85 | 4.1635 |
| 0.5 | 225.0 | 1.56 | 0.525 | 0.4445 |
| 0.5 | 255.0 | 3.57 | 0.944 | 0.2787 |
| 0.5 | 285.0 | 2.82 | 0.851 | 0.1887 |
| 0.5 | 315.0 | 2.15 | 0.663 | 0.2024 |
| 0.5 | 345.0 | 2.05 | 0.496 | 0.1961 |
| 0.7 | 15.0 | 1.58 | 0.416 | 0.1865 |
| 0.7 | 45.0 | 1.37 | 0.424 | 0.2825 |
| 0.7 | 75.0 | 2.32 | 0.757 | 0.2632 |
| 0.7 | 105.0 | 2.74 | 0.734 | 0.7721 |
| 0.7 | 135.0 | 4.06 | 1.73 | 1.4452 |
| 0.7 | 165.0 | 3.5 | 2.36 | 3.7862 |
| 0.7 | 195.0 | 6.91 | 6.95 | 4.1081 |
| 0.7 | 225.0 | 2.57 | 0.862 | 0.4622 |
| 0.7 | 255.0 | 4.41 | 1.32 | 0.8325 |
| 0.7 | 285.0 | 1.03 | 0.357 | 0.2393 |
| 0.7 | 315.0 | 1.75 | 0.557 | 0.8917 |
| 0.7 | 345.0 | 1.74 | 0.589 | 0.217 |
| 0.9 | 15.0 | 1.97 | 0.807 | 0.5297 |
| 0.9 | 45.0 | 1.96 | 0.767 | 0.3958 |
| 0.9 | 75.0 | 0.756 | 0.371 | 0.3849 |
| 0.9 | 105.0 | 1.19 | 0.79 | 0.6317 |
| 0.9 | 135.0 | 4.45 | 2.55 | 1.0609 |
| 0.9 | 195.0 | 5.05 | 4.64 | 2.6977 |
| 0.9 | 225.0 | 2.48 | 1.59 | 0.8708 |
| 0.9 | 255.0 | 2.73 | 1.57 | 1.2284 |
| 0.9 | 285.0 | 2.53 | 0.97 | 0.3782 |
| 0.9 | 315.0 | 2.03 | 0.916 | 0.7195 |
| 0.9 | 345.0 | 0.823 | 0.277 | 0.2807 |
Experiment comment: