Measurement E9M79
| 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: | 1.1 GeV | |
| ε: | 0.833 | |
| 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 | 0.601 | 0.429 | 0.9187 |
| -0.9 | 45.0 | 0.125 | 0.136 | 0.2013 |
| -0.9 | 75.0 | 0.227 | 0.188 | 0.5189 |
| -0.9 | 105.0 | 0.172 | 0.185 | 0.0959 |
| -0.9 | 135.0 | 0.407 | 0.271 | 0.1053 |
| -0.9 | 165.0 | 1.18 | 0.812 | 2.1096 |
| -0.9 | 195.0 | 1.01 | 0.491 | 0.3053 |
| -0.9 | 225.0 | 0.763 | 0.515 | 0.2165 |
| -0.9 | 255.0 | 0.651 | 0.466 | 0.3187 |
| -0.9 | 285.0 | 4.49 | 3.33 | 2.55 |
| -0.9 | 315.0 | 0.376 | 0.434 | 0.386 |
| -0.9 | 345.0 | 2.55 | 2.55 | 1.2715 |
| -0.7 | 15.0 | 1.14 | 1.02 | 0.7131 |
| -0.7 | 45.0 | 0.583 | 0.399 | 0.1202 |
| -0.7 | 75.0 | 8.27 | 8.99 | 5.4024 |
| -0.7 | 105.0 | 0.361 | 0.392 | 0.324 |
| -0.7 | 135.0 | 0.788 | 0.452 | 0.2617 |
| -0.7 | 165.0 | 1.73 | 0.717 | 0.221 |
| -0.7 | 195.0 | 1.75 | 0.867 | 0.6299 |
| -0.7 | 225.0 | 3.89 | 1.79 | 2.0471 |
| -0.7 | 255.0 | 0.553 | 0.478 | 1.8188 |
| -0.7 | 285.0 | 0.259 | 0.171 | 0.8894 |
| -0.7 | 315.0 | 0.487 | 0.416 | 0.6109 |
| -0.7 | 345.0 | 0.364 | 0.487 | 1.2451 |
| -0.5 | 15.0 | 0.398 | 0.298 | 0.5909 |
| -0.5 | 45.0 | 1.18 | 0.723 | 0.4903 |
| -0.5 | 75.0 | 0.223 | 0.175 | 0.6227 |
| -0.5 | 105.0 | 2.48 | 1.11 | 0.7191 |
| -0.5 | 135.0 | 1.47 | 0.891 | 0.7023 |
| -0.5 | 165.0 | 0.713 | 0.453 | 0.3478 |
| -0.5 | 195.0 | 1.87 | 0.706 | 1.0418 |
| -0.5 | 225.0 | 1.15 | 0.537 | 0.1423 |
| -0.5 | 255.0 | 2.56 | 1.02 | 0.976 |
| -0.5 | 285.0 | 0.666 | 0.315 | 0.3841 |
| -0.5 | 315.0 | 0.835 | 0.585 | 0.3329 |
| -0.5 | 345.0 | 0.0725 | 0.0762 | 0.0854 |
| -0.3 | 15.0 | 0.359 | 0.196 | 0.5596 |
| -0.3 | 45.0 | 2.14 | 1.01 | 0.5829 |
| -0.3 | 75.0 | 1.83 | 0.854 | 0.289 |
| -0.3 | 105.0 | 1.43 | 0.791 | 0.4666 |
| -0.3 | 135.0 | 0.664 | 0.374 | 0.4401 |
| -0.3 | 165.0 | 1.71 | 0.599 | 0.1487 |
| -0.3 | 195.0 | 0.94 | 0.383 | 0.1873 |
| -0.3 | 225.0 | 2.54 | 1.0 | 0.273 |
| -0.3 | 255.0 | 2.19 | 1.34 | 0.7591 |
| -0.3 | 285.0 | 0.3 | 0.232 | 0.6067 |
| -0.3 | 315.0 | 0.259 | 0.137 | 0.4196 |
| -0.3 | 345.0 | 0.388 | 0.426 | 0.475 |
| -0.1 | 15.0 | 0.337 | 0.291 | 0.2259 |
| -0.1 | 45.0 | 1.62 | 0.968 | 0.6488 |
| -0.1 | 75.0 | 3.68 | 2.09 | 1.5391 |
| -0.1 | 105.0 | 0.713 | 0.353 | 0.2261 |
| -0.1 | 135.0 | 1.44 | 0.6 | 0.1611 |
| -0.1 | 165.0 | 2.45 | 1.1 | 0.7535 |
| -0.1 | 195.0 | 3.96 | 1.62 | 1.1428 |
| -0.1 | 225.0 | 1.45 | 0.68 | 0.2736 |
| -0.1 | 255.0 | 1.05 | 0.389 | 0.2145 |
| -0.1 | 285.0 | 0.787 | 0.372 | 0.4855 |
| -0.1 | 315.0 | 0.796 | 0.476 | 1.3901 |
| -0.1 | 345.0 | 0.942 | 0.535 | 0.3155 |
| 0.1 | 15.0 | 0.303 | 0.176 | 0.3001 |
| 0.1 | 45.0 | 1.29 | 0.639 | 0.5534 |
| 0.1 | 75.0 | 1.08 | 0.554 | 0.2836 |
| 0.1 | 105.0 | 1.52 | 0.79 | 0.5087 |
| 0.1 | 135.0 | 3.03 | 1.39 | 0.4842 |
| 0.1 | 165.0 | 4.37 | 1.43 | 0.7245 |
| 0.1 | 195.0 | 2.87 | 0.948 | 0.8156 |
| 0.1 | 225.0 | 1.06 | 0.432 | 0.4855 |
| 0.1 | 255.0 | 0.411 | 0.148 | 0.8895 |
| 0.1 | 285.0 | 0.272 | 0.151 | 0.3092 |
| 0.1 | 315.0 | 1.06 | 0.599 | 0.3214 |
| 0.1 | 345.0 | 1.86 | 1.32 | 1.1668 |
| 0.3 | 15.0 | 0.677 | 0.482 | 0.1289 |
| 0.3 | 45.0 | 0.651 | 0.33 | 5.3749 |
| 0.3 | 75.0 | 0.519 | 0.257 | 0.1514 |
| 0.3 | 105.0 | 1.3 | 0.534 | 0.1497 |
| 0.3 | 135.0 | 2.87 | 1.07 | 0.4589 |
| 0.3 | 165.0 | 3.13 | 1.1 | 1.0463 |
| 0.3 | 195.0 | 3.65 | 1.33 | 1.0423 |
| 0.3 | 225.0 | 4.8 | 1.79 | 1.2175 |
| 0.3 | 255.0 | 1.1 | 0.497 | 0.0954 |
| 0.3 | 285.0 | 1.82 | 0.757 | 0.1933 |
| 0.3 | 315.0 | 1.95 | 0.904 | 0.5361 |
| 0.3 | 345.0 | 0.614 | 0.34 | 0.3581 |
| 0.5 | 15.0 | 0.435 | 0.266 | 0.1305 |
| 0.5 | 45.0 | 1.15 | 0.605 | 0.4277 |
| 0.5 | 75.0 | 1.73 | 0.697 | 0.3008 |
| 0.5 | 105.0 | 4.12 | 1.71 | 1.5139 |
| 0.5 | 135.0 | 1.9 | 0.823 | 0.653 |
| 0.5 | 165.0 | 3.25 | 1.16 | 0.5969 |
| 0.5 | 195.0 | 1.57 | 0.552 | 0.3434 |
| 0.5 | 225.0 | 4.81 | 1.72 | 0.8159 |
| 0.5 | 255.0 | 2.28 | 0.925 | 0.412 |
| 0.5 | 285.0 | 1.26 | 0.526 | 0.8553 |
| 0.5 | 315.0 | 0.616 | 0.281 | 1.3422 |
| 0.5 | 345.0 | 0.772 | 0.466 | 0.5695 |
| 0.7 | 15.0 | 0.89 | 0.482 | 0.2668 |
| 0.7 | 45.0 | 1.11 | 0.416 | 0.5808 |
| 0.7 | 75.0 | 0.987 | 0.448 | 0.4295 |
| 0.7 | 105.0 | 2.8 | 1.17 | 0.4521 |
| 0.7 | 135.0 | 1.59 | 0.748 | 0.4582 |
| 0.7 | 165.0 | 3.49 | 1.24 | 0.7288 |
| 0.7 | 195.0 | 1.48 | 0.496 | 0.1736 |
| 0.7 | 225.0 | 1.75 | 0.812 | 0.7855 |
| 0.7 | 255.0 | 1.27 | 0.42 | 0.862 |
| 0.7 | 285.0 | 0.695 | 0.393 | 0.4611 |
| 0.7 | 315.0 | 1.54 | 0.862 | 0.543 |
| 0.7 | 345.0 | 0.743 | 0.39 | 0.7372 |
| 0.9 | 15.0 | 3.11 | 1.45 | 1.8502 |
| 0.9 | 45.0 | 4.8 | 2.18 | 1.7398 |
| 0.9 | 75.0 | 1.04 | 0.522 | 0.7118 |
| 0.9 | 105.0 | 0.935 | 0.485 | 1.3149 |
| 0.9 | 135.0 | 1.75 | 0.755 | 0.4439 |
| 0.9 | 165.0 | 5.23 | 2.22 | 1.9542 |
| 0.9 | 195.0 | 4.43 | 2.09 | 2.0513 |
| 0.9 | 225.0 | 3.11 | 1.32 | 0.3764 |
| 0.9 | 255.0 | 1.53 | 0.688 | 0.6578 |
| 0.9 | 285.0 | 1.05 | 0.559 | 0.6089 |
| 0.9 | 315.0 | 4.52 | 2.45 | 1.3435 |
| 0.9 | 345.0 | 1.92 | 0.966 | 0.5729 |
Experiment comment: