Measurement E9M13
| 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: | 1.34 GeV | |
| ε: | 0.765 | |
| 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 | 0.939 | 0.288 | 0.2484 |
| -0.9 | 45.0 | 1.53 | 0.466 | 0.1197 |
| -0.9 | 75.0 | 1.77 | 0.529 | 0.18 |
| -0.9 | 105.0 | 2.66 | 0.844 | 0.7724 |
| -0.9 | 135.0 | 1.87 | 0.728 | 0.3717 |
| -0.9 | 165.0 | 2.34 | 0.816 | 0.4445 |
| -0.9 | 195.0 | 2.06 | 0.626 | 0.3963 |
| -0.9 | 225.0 | 1.24 | 0.481 | 0.169 |
| -0.9 | 255.0 | 1.89 | 0.635 | 0.2393 |
| -0.9 | 285.0 | 1.59 | 0.532 | 0.2169 |
| -0.9 | 315.0 | 1.52 | 0.487 | 0.1571 |
| -0.9 | 345.0 | 0.816 | 0.281 | 0.2778 |
| -0.7 | 15.0 | 1.77 | 0.373 | 0.2095 |
| -0.7 | 45.0 | 2.74 | 0.639 | 0.7874 |
| -0.7 | 75.0 | 4.56 | 0.985 | 1.2053 |
| -0.7 | 105.0 | 11.2 | 3.68 | 2.8379 |
| -0.7 | 135.0 | 1.35 | 0.719 | 0.8225 |
| -0.7 | 165.0 | 2.15 | 0.665 | 0.5211 |
| -0.7 | 195.0 | 2.58 | 0.805 | 0.3474 |
| -0.7 | 225.0 | 2.97 | 0.969 | 0.4133 |
| -0.7 | 255.0 | 2.69 | 1.1 | 0.9364 |
| -0.7 | 285.0 | 3.52 | 0.882 | 0.3454 |
| -0.7 | 315.0 | 3.83 | 0.776 | 0.6113 |
| -0.7 | 345.0 | 2.2 | 0.45 | 0.1548 |
| -0.5 | 15.0 | 2.95 | 0.476 | 0.2705 |
| -0.5 | 45.0 | 3.44 | 0.653 | 0.2948 |
| -0.5 | 75.0 | 5.61 | 1.28 | 1.5546 |
| -0.5 | 105.0 | 3.87 | 1.05 | 0.2997 |
| -0.5 | 135.0 | 2.58 | 0.989 | 0.821 |
| -0.5 | 165.0 | 3.42 | 1.35 | 0.5042 |
| -0.5 | 195.0 | 2.02 | 1.11 | 0.647 |
| -0.5 | 225.0 | 9.27 | 3.35 | 1.6989 |
| -0.5 | 255.0 | 11.5 | 2.8 | 2.8472 |
| -0.5 | 285.0 | 5.21 | 1.29 | 0.3467 |
| -0.5 | 315.0 | 3.56 | 0.637 | 0.8745 |
| -0.5 | 345.0 | 3.33 | 0.581 | 0.378 |
| -0.3 | 15.0 | 3.74 | 0.515 | 0.3074 |
| -0.3 | 45.0 | 5.54 | 0.854 | 0.4511 |
| -0.3 | 75.0 | 3.93 | 0.919 | 0.3987 |
| -0.3 | 105.0 | 4.92 | 0.924 | 0.3839 |
| -0.3 | 135.0 | 6.95 | 1.52 | 1.1235 |
| -0.3 | 165.0 | 4.3 | 2.92 | 12.2309 |
| -0.3 | 195.0 | 5.77 | 4.09 | 3.3825 |
| -0.3 | 225.0 | 3.76 | 0.907 | 0.2239 |
| -0.3 | 255.0 | 7.78 | 1.4 | 0.3827 |
| -0.3 | 285.0 | 6.42 | 1.32 | 0.538 |
| -0.3 | 315.0 | 4.62 | 0.742 | 0.4468 |
| -0.3 | 345.0 | 2.88 | 0.405 | 0.4315 |
| -0.1 | 15.0 | 4.32 | 0.647 | 0.3791 |
| -0.1 | 45.0 | 5.17 | 0.841 | 1.1529 |
| -0.1 | 75.0 | 6.99 | 1.21 | 0.3274 |
| -0.1 | 105.0 | 9.02 | 1.21 | 0.4255 |
| -0.1 | 135.0 | 4.7 | 0.846 | 0.3275 |
| -0.1 | 165.0 | 5.38 | 2.91 | 1.0453 |
| -0.1 | 195.0 | 8.38 | 4.35 | 3.4203 |
| -0.1 | 225.0 | 5.35 | 0.901 | 0.728 |
| -0.1 | 255.0 | 7.07 | 1.04 | 0.3021 |
| -0.1 | 285.0 | 5.69 | 1.08 | 0.285 |
| -0.1 | 315.0 | 4.72 | 0.762 | 0.3809 |
| -0.1 | 345.0 | 3.29 | 0.518 | 0.1108 |
| 0.1 | 15.0 | 3.88 | 0.608 | 0.2436 |
| 0.1 | 45.0 | 4.86 | 0.837 | 0.3195 |
| 0.1 | 75.0 | 5.89 | 1.07 | 0.2964 |
| 0.1 | 105.0 | 5.49 | 0.818 | 0.1961 |
| 0.1 | 135.0 | 6.47 | 1.01 | 0.5402 |
| 0.1 | 165.0 | 2.35 | 1.08 | 0.7096 |
| 0.1 | 195.0 | 5.86 | 2.12 | 1.9846 |
| 0.1 | 225.0 | 5.9 | 0.881 | 0.332 |
| 0.1 | 255.0 | 5.57 | 0.815 | 0.1636 |
| 0.1 | 285.0 | 8.01 | 1.22 | 0.6874 |
| 0.1 | 315.0 | 5.65 | 0.818 | 0.3259 |
| 0.1 | 345.0 | 3.47 | 0.559 | 0.3551 |
| 0.3 | 15.0 | 3.07 | 0.536 | 0.4275 |
| 0.3 | 45.0 | 5.48 | 0.886 | 0.8565 |
| 0.3 | 75.0 | 4.74 | 0.81 | 0.1082 |
| 0.3 | 105.0 | 4.5 | 0.633 | 0.5755 |
| 0.3 | 135.0 | 5.78 | 0.902 | 0.6672 |
| 0.3 | 165.0 | 4.41 | 2.31 | 0.7018 |
| 0.3 | 195.0 | 1.13 | 0.688 | 0.861 |
| 0.3 | 225.0 | 4.62 | 0.827 | 0.4971 |
| 0.3 | 255.0 | 5.87 | 0.785 | 0.5568 |
| 0.3 | 285.0 | 5.08 | 0.845 | 0.3483 |
| 0.3 | 315.0 | 5.28 | 0.933 | 0.434 |
| 0.3 | 345.0 | 4.68 | 0.693 | 0.3829 |
| 0.5 | 15.0 | 3.24 | 0.541 | 0.0923 |
| 0.5 | 45.0 | 3.59 | 0.7 | 0.3056 |
| 0.5 | 75.0 | 5.43 | 0.907 | 0.2636 |
| 0.5 | 105.0 | 4.53 | 0.632 | 0.2618 |
| 0.5 | 135.0 | 5.49 | 1.02 | 0.8297 |
| 0.5 | 195.0 | 8.74 | 6.69 | 5.3215 |
| 0.5 | 225.0 | 3.27 | 0.621 | 0.4561 |
| 0.5 | 255.0 | 3.46 | 0.519 | 0.583 |
| 0.5 | 285.0 | 5.6 | 0.918 | 0.3322 |
| 0.5 | 315.0 | 2.04 | 0.44 | 0.3254 |
| 0.5 | 345.0 | 3.21 | 0.555 | 0.2444 |
| 0.7 | 15.0 | 3.36 | 0.557 | 0.163 |
| 0.7 | 45.0 | 2.04 | 0.474 | 0.0914 |
| 0.7 | 75.0 | 2.47 | 0.503 | 0.2908 |
| 0.7 | 105.0 | 4.88 | 0.785 | 0.394 |
| 0.7 | 135.0 | 2.23 | 0.589 | 0.4726 |
| 0.7 | 195.0 | 1.98 | 2.14 | 1.8786 |
| 0.7 | 225.0 | 3.66 | 0.872 | 0.4212 |
| 0.7 | 255.0 | 3.0 | 0.526 | 0.5202 |
| 0.7 | 285.0 | 2.6 | 0.507 | 0.8178 |
| 0.7 | 315.0 | 4.25 | 0.802 | 0.6543 |
| 0.7 | 345.0 | 2.4 | 0.445 | 0.2038 |
| 0.9 | 15.0 | 2.43 | 0.532 | 0.4612 |
| 0.9 | 45.0 | 2.91 | 0.708 | 0.763 |
| 0.9 | 75.0 | 1.89 | 0.641 | 0.4547 |
| 0.9 | 105.0 | 3.45 | 1.04 | 0.966 |
| 0.9 | 135.0 | 1.5 | 0.69 | 0.4224 |
| 0.9 | 165.0 | 1.74 | 1.36 | 0.5183 |
| 0.9 | 225.0 | 2.06 | 0.905 | 0.6279 |
| 0.9 | 255.0 | 2.06 | 0.591 | 0.7777 |
| 0.9 | 285.0 | 3.02 | 0.875 | 0.6257 |
| 0.9 | 315.0 | 1.74 | 0.49 | 0.5359 |
| 0.9 | 345.0 | 2.0 | 0.492 | 0.2495 |
Experiment comment: