Measurement E9M234
| 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: | 0.8 — 1.0 GeV2 | |
| W: | 1.3 GeV | |
| ε: | 0.803 | |
| 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 | 1.89 | 0.5 | 0.4383 |
| -0.9 | 45.0 | 1.34 | 0.346 | 0.0725 |
| -0.9 | 75.0 | 1.89 | 0.455 | 0.2457 |
| -0.9 | 105.0 | 1.96 | 0.456 | 0.3286 |
| -0.9 | 135.0 | 1.3 | 0.36 | 0.1951 |
| -0.9 | 165.0 | 1.96 | 0.536 | 0.5076 |
| -0.9 | 195.0 | 2.29 | 0.62 | 0.4682 |
| -0.9 | 225.0 | 2.25 | 0.509 | 0.666 |
| -0.9 | 255.0 | 1.79 | 0.403 | 0.3124 |
| -0.9 | 285.0 | 1.22 | 0.295 | 0.0654 |
| -0.9 | 315.0 | 1.05 | 0.273 | 0.2021 |
| -0.9 | 345.0 | 1.98 | 0.532 | 0.4038 |
| -0.7 | 15.0 | 1.68 | 0.316 | 0.2886 |
| -0.7 | 45.0 | 1.92 | 0.34 | 0.1165 |
| -0.7 | 75.0 | 2.55 | 0.47 | 0.1765 |
| -0.7 | 105.0 | 3.19 | 0.526 | 0.3421 |
| -0.7 | 135.0 | 1.35 | 0.309 | 0.1943 |
| -0.7 | 165.0 | 1.26 | 0.291 | 0.1542 |
| -0.7 | 195.0 | 1.71 | 0.355 | 0.0828 |
| -0.7 | 225.0 | 2.74 | 0.565 | 0.3857 |
| -0.7 | 255.0 | 3.08 | 0.583 | 0.4857 |
| -0.7 | 285.0 | 3.24 | 0.551 | 0.3667 |
| -0.7 | 315.0 | 3.5 | 0.554 | 0.4121 |
| -0.7 | 345.0 | 1.63 | 0.31 | 0.1375 |
| -0.5 | 15.0 | 1.73 | 0.286 | 0.109 |
| -0.5 | 45.0 | 3.55 | 0.471 | 0.1253 |
| -0.5 | 75.0 | 5.44 | 0.879 | 0.9964 |
| -0.5 | 105.0 | 4.45 | 0.76 | 0.3293 |
| -0.5 | 135.0 | 2.37 | 0.475 | 0.5346 |
| -0.5 | 165.0 | 2.02 | 0.378 | 0.375 |
| -0.5 | 195.0 | 1.5 | 0.307 | 0.1603 |
| -0.5 | 225.0 | 3.32 | 0.648 | 0.4714 |
| -0.5 | 255.0 | 4.57 | 0.773 | 0.2392 |
| -0.5 | 285.0 | 4.35 | 0.649 | 0.2224 |
| -0.5 | 315.0 | 2.88 | 0.425 | 0.3343 |
| -0.5 | 345.0 | 2.67 | 0.398 | 0.3067 |
| -0.3 | 15.0 | 3.15 | 0.43 | 0.025 |
| -0.3 | 45.0 | 3.28 | 0.426 | 0.2079 |
| -0.3 | 75.0 | 5.73 | 0.837 | 0.3158 |
| -0.3 | 105.0 | 4.82 | 0.849 | 0.5419 |
| -0.3 | 135.0 | 3.82 | 0.845 | 0.3753 |
| -0.3 | 165.0 | 1.64 | 0.358 | 0.2787 |
| -0.3 | 195.0 | 1.95 | 0.376 | 0.3452 |
| -0.3 | 225.0 | 5.48 | 1.07 | 0.6418 |
| -0.3 | 255.0 | 5.34 | 0.937 | 0.7485 |
| -0.3 | 285.0 | 4.31 | 0.657 | 0.2762 |
| -0.3 | 315.0 | 3.41 | 0.43 | 0.1629 |
| -0.3 | 345.0 | 3.25 | 0.468 | 0.5275 |
| -0.1 | 15.0 | 3.3 | 0.466 | 0.3602 |
| -0.1 | 45.0 | 4.95 | 0.63 | 0.4809 |
| -0.1 | 75.0 | 6.34 | 0.939 | 0.6511 |
| -0.1 | 105.0 | 5.81 | 1.21 | 0.3757 |
| -0.1 | 135.0 | 4.69 | 1.1 | 0.49 |
| -0.1 | 165.0 | 3.08 | 0.608 | 0.4744 |
| -0.1 | 195.0 | 2.65 | 0.557 | 0.2142 |
| -0.1 | 225.0 | 3.88 | 0.979 | 0.4547 |
| -0.1 | 255.0 | 3.56 | 0.786 | 0.2976 |
| -0.1 | 285.0 | 6.41 | 1.02 | 0.3634 |
| -0.1 | 315.0 | 4.12 | 0.536 | 0.4249 |
| -0.1 | 345.0 | 3.41 | 0.489 | 0.357 |
| 0.1 | 15.0 | 1.73 | 0.278 | 0.0339 |
| 0.1 | 45.0 | 4.17 | 0.536 | 0.2616 |
| 0.1 | 75.0 | 7.36 | 1.22 | 0.9923 |
| 0.1 | 105.0 | 9.6 | 1.79 | 0.8719 |
| 0.1 | 135.0 | 5.83 | 1.77 | 0.9596 |
| 0.1 | 165.0 | 3.13 | 0.636 | 0.422 |
| 0.1 | 195.0 | 2.67 | 0.528 | 0.199 |
| 0.1 | 225.0 | 3.46 | 1.09 | 0.5857 |
| 0.1 | 255.0 | 8.06 | 1.77 | 1.0006 |
| 0.1 | 285.0 | 4.16 | 0.671 | 0.0702 |
| 0.1 | 315.0 | 3.55 | 0.485 | 0.1715 |
| 0.1 | 345.0 | 2.38 | 0.353 | 0.1629 |
| 0.3 | 15.0 | 1.62 | 0.268 | 0.1268 |
| 0.3 | 45.0 | 3.32 | 0.436 | 0.4693 |
| 0.3 | 75.0 | 4.27 | 0.724 | 0.2553 |
| 0.3 | 105.0 | 6.2 | 1.33 | 0.949 |
| 0.3 | 135.0 | 6.8 | 2.15 | 1.539 |
| 0.3 | 165.0 | 3.59 | 0.663 | 0.7463 |
| 0.3 | 195.0 | 1.97 | 0.422 | 0.3329 |
| 0.3 | 225.0 | 4.43 | 1.44 | 0.5405 |
| 0.3 | 255.0 | 5.17 | 1.09 | 1.0711 |
| 0.3 | 285.0 | 4.0 | 0.71 | 0.0433 |
| 0.3 | 315.0 | 3.14 | 0.441 | 0.1333 |
| 0.3 | 345.0 | 2.7 | 0.426 | 0.2794 |
| 0.5 | 15.0 | 2.1 | 0.347 | 0.0628 |
| 0.5 | 45.0 | 2.36 | 0.369 | 0.0512 |
| 0.5 | 75.0 | 4.65 | 0.828 | 0.1526 |
| 0.5 | 105.0 | 3.99 | 0.837 | 0.5693 |
| 0.5 | 135.0 | 4.6 | 1.4 | 0.7863 |
| 0.5 | 165.0 | 3.8 | 0.754 | 0.7251 |
| 0.5 | 195.0 | 3.65 | 0.731 | 0.3287 |
| 0.5 | 225.0 | 7.61 | 2.35 | 2.5008 |
| 0.5 | 255.0 | 4.17 | 0.901 | 0.9513 |
| 0.5 | 285.0 | 4.04 | 0.755 | 0.2804 |
| 0.5 | 315.0 | 2.76 | 0.431 | 0.1958 |
| 0.5 | 345.0 | 1.63 | 0.29 | 0.0456 |
| 0.7 | 15.0 | 1.15 | 0.244 | 0.1034 |
| 0.7 | 45.0 | 1.98 | 0.359 | 0.1874 |
| 0.7 | 75.0 | 3.78 | 0.75 | 0.6602 |
| 0.7 | 105.0 | 3.09 | 0.877 | 0.3596 |
| 0.7 | 135.0 | 3.81 | 1.25 | 2.1338 |
| 0.7 | 165.0 | 2.89 | 0.672 | 0.3401 |
| 0.7 | 195.0 | 3.18 | 0.633 | 0.2891 |
| 0.7 | 225.0 | 1.53 | 0.42 | 1.0121 |
| 0.7 | 255.0 | 3.84 | 0.825 | 0.52 |
| 0.7 | 285.0 | 2.48 | 0.516 | 0.2122 |
| 0.7 | 315.0 | 3.08 | 0.519 | 0.3734 |
| 0.7 | 345.0 | 2.04 | 0.382 | 0.2511 |
| 0.9 | 15.0 | 0.593 | 0.182 | 0.1297 |
| 0.9 | 45.0 | 1.1 | 0.304 | 0.293 |
| 0.9 | 75.0 | 1.39 | 0.373 | 0.1853 |
| 0.9 | 105.0 | 1.54 | 0.399 | 0.9707 |
| 0.9 | 135.0 | 3.53 | 0.95 | 1.1267 |
| 0.9 | 165.0 | 2.38 | 0.536 | 0.4188 |
| 0.9 | 195.0 | 3.37 | 0.711 | 0.7502 |
| 0.9 | 225.0 | 4.08 | 1.19 | 1.4853 |
| 0.9 | 255.0 | 1.72 | 0.461 | 0.1631 |
| 0.9 | 285.0 | 1.23 | 0.312 | 0.2509 |
| 0.9 | 315.0 | 1.15 | 0.246 | 0.3038 |
| 0.9 | 345.0 | 1.17 | 0.317 | 0.1814 |
Experiment comment: