Measurement E9M179
| 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: | 1.4 GeV | |
| ε: | 0.826 | |
| 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 | 0.348 | 0.167 | 0.1337 |
| -0.9 | 45.0 | 0.174 | 0.107 | 0.0602 |
| -0.9 | 75.0 | 0.593 | 0.273 | 0.0718 |
| -0.9 | 105.0 | 0.343 | 0.185 | 0.1152 |
| -0.9 | 135.0 | 1.2 | 0.45 | 0.5815 |
| -0.9 | 165.0 | 0.833 | 0.347 | 0.1721 |
| -0.9 | 195.0 | 1.36 | 0.465 | 0.2747 |
| -0.9 | 225.0 | 1.01 | 0.392 | 0.173 |
| -0.9 | 255.0 | 0.999 | 0.371 | 0.1286 |
| -0.9 | 285.0 | 1.04 | 0.403 | 0.2906 |
| -0.9 | 315.0 | 0.19 | 0.116 | 0.1223 |
| -0.9 | 345.0 | 0.369 | 0.164 | 0.1277 |
| -0.7 | 15.0 | 0.439 | 0.158 | 0.2225 |
| -0.7 | 45.0 | 0.828 | 0.285 | 0.1912 |
| -0.7 | 75.0 | 2.23 | 0.683 | 0.411 |
| -0.7 | 105.0 | 0.557 | 0.336 | 0.0469 |
| -0.7 | 135.0 | 3.2 | 1.16 | 0.3576 |
| -0.7 | 165.0 | 1.42 | 0.401 | 0.708 |
| -0.7 | 195.0 | 1.78 | 0.551 | 0.2151 |
| -0.7 | 225.0 | 0.488 | 0.361 | 0.1743 |
| -0.7 | 255.0 | 4.99 | 2.21 | 1.7216 |
| -0.7 | 285.0 | 1.38 | 0.466 | 0.287 |
| -0.7 | 315.0 | 0.894 | 0.296 | 0.1608 |
| -0.7 | 345.0 | 0.325 | 0.131 | 0.0896 |
| -0.5 | 15.0 | 0.659 | 0.17 | 0.2066 |
| -0.5 | 45.0 | 1.7 | 0.395 | 0.1177 |
| -0.5 | 75.0 | 1.55 | 0.691 | 0.0963 |
| -0.5 | 105.0 | 4.66 | 2.8 | 1.9996 |
| -0.5 | 135.0 | 3.8 | 4.65 | 3.1361 |
| -0.5 | 165.0 | 1.46 | 0.683 | 0.3394 |
| -0.5 | 195.0 | 1.42 | 0.503 | 0.2212 |
| -0.5 | 255.0 | 2.5 | 1.61 | 4.9108 |
| -0.5 | 285.0 | 2.29 | 0.885 | 0.6343 |
| -0.5 | 315.0 | 1.64 | 0.398 | 0.0963 |
| -0.5 | 345.0 | 1.18 | 0.267 | 0.1765 |
| -0.3 | 15.0 | 1.42 | 0.322 | 0.1208 |
| -0.3 | 45.0 | 1.33 | 0.308 | 0.1445 |
| -0.3 | 75.0 | 2.07 | 1.12 | 0.6791 |
| -0.3 | 105.0 | 3.89 | 1.35 | 0.9353 |
| -0.3 | 135.0 | 1.92 | 0.767 | 0.7742 |
| -0.3 | 195.0 | 0.196 | 0.201 | 0.2761 |
| -0.3 | 225.0 | 1.71 | 0.845 | 0.3401 |
| -0.3 | 255.0 | 3.37 | 1.29 | 0.9673 |
| -0.3 | 285.0 | 4.92 | 2.18 | 1.4599 |
| -0.3 | 315.0 | 1.76 | 0.438 | 0.2066 |
| -0.3 | 345.0 | 1.19 | 0.239 | 0.3092 |
| -0.1 | 15.0 | 1.16 | 0.276 | 0.0343 |
| -0.1 | 45.0 | 1.61 | 0.412 | 0.1969 |
| -0.1 | 75.0 | 1.51 | 0.714 | 0.0187 |
| -0.1 | 105.0 | 3.2 | 0.741 | 0.195 |
| -0.1 | 135.0 | 4.4 | 1.07 | 0.7771 |
| -0.1 | 165.0 | 0.722 | 0.78 | 0.0876 |
| -0.1 | 195.0 | 2.39 | 1.69 | 0.6833 |
| -0.1 | 225.0 | 3.83 | 0.968 | 0.5485 |
| -0.1 | 255.0 | 3.7 | 0.763 | 0.2122 |
| -0.1 | 285.0 | 4.26 | 1.57 | 0.9373 |
| -0.1 | 315.0 | 2.07 | 0.461 | 0.1412 |
| -0.1 | 345.0 | 1.72 | 0.385 | 0.1366 |
| 0.1 | 15.0 | 2.62 | 0.51 | 0.095 |
| 0.1 | 45.0 | 3.2 | 0.637 | 0.1764 |
| 0.1 | 75.0 | 3.02 | 0.851 | 0.4341 |
| 0.1 | 105.0 | 2.4 | 0.474 | 0.1272 |
| 0.1 | 135.0 | 3.03 | 0.66 | 0.4595 |
| 0.1 | 165.0 | 4.34 | 2.64 | 5.4815 |
| 0.1 | 195.0 | 3.12 | 2.28 | 0.4163 |
| 0.1 | 225.0 | 3.76 | 0.75 | 0.2686 |
| 0.1 | 255.0 | 4.36 | 0.754 | 0.2019 |
| 0.1 | 285.0 | 2.16 | 0.686 | 0.2636 |
| 0.1 | 315.0 | 2.01 | 0.478 | 0.0474 |
| 0.1 | 345.0 | 1.88 | 0.413 | 0.075 |
| 0.3 | 15.0 | 1.68 | 0.356 | 0.0604 |
| 0.3 | 45.0 | 2.04 | 0.528 | 0.2358 |
| 0.3 | 75.0 | 3.15 | 0.777 | 0.1866 |
| 0.3 | 105.0 | 2.16 | 0.418 | 0.2525 |
| 0.3 | 135.0 | 1.65 | 0.368 | 0.3703 |
| 0.3 | 165.0 | 11.5 | 6.95 | 4.6563 |
| 0.3 | 195.0 | 1.78 | 0.942 | 0.8213 |
| 0.3 | 225.0 | 2.33 | 0.53 | 0.4088 |
| 0.3 | 255.0 | 2.77 | 0.55 | 0.169 |
| 0.3 | 285.0 | 2.42 | 0.693 | 0.2697 |
| 0.3 | 315.0 | 1.94 | 0.43 | 0.2283 |
| 0.3 | 345.0 | 1.89 | 0.423 | 0.2144 |
| 0.5 | 15.0 | 1.76 | 0.375 | 0.3738 |
| 0.5 | 45.0 | 2.12 | 0.556 | 0.1725 |
| 0.5 | 75.0 | 3.44 | 1.02 | 0.7264 |
| 0.5 | 105.0 | 2.09 | 0.535 | 0.2095 |
| 0.5 | 135.0 | 1.03 | 0.267 | 0.2171 |
| 0.5 | 165.0 | 5.14 | 2.32 | 6.1806 |
| 0.5 | 195.0 | 0.969 | 0.541 | 0.1532 |
| 0.5 | 225.0 | 3.26 | 0.818 | 0.6215 |
| 0.5 | 255.0 | 1.78 | 0.432 | 0.1437 |
| 0.5 | 285.0 | 3.22 | 0.879 | 0.2885 |
| 0.5 | 315.0 | 2.29 | 0.59 | 0.2127 |
| 0.5 | 345.0 | 0.975 | 0.256 | 0.1484 |
| 0.7 | 15.0 | 1.12 | 0.308 | 0.4078 |
| 0.7 | 45.0 | 0.627 | 0.226 | 0.1311 |
| 0.7 | 75.0 | 1.81 | 0.691 | 0.4155 |
| 0.7 | 105.0 | 1.53 | 0.478 | 0.3435 |
| 0.7 | 135.0 | 1.3 | 0.372 | 0.3132 |
| 0.7 | 165.0 | 1.17 | 0.786 | 0.4358 |
| 0.7 | 195.0 | 2.44 | 1.44 | 1.1447 |
| 0.7 | 225.0 | 0.817 | 0.25 | 0.1886 |
| 0.7 | 255.0 | 1.07 | 0.346 | 0.1213 |
| 0.7 | 285.0 | 0.847 | 0.328 | 0.2213 |
| 0.7 | 315.0 | 0.708 | 0.256 | 0.2262 |
| 0.7 | 345.0 | 1.07 | 0.336 | 0.1887 |
| 0.9 | 15.0 | 0.441 | 0.239 | 0.1981 |
| 0.9 | 45.0 | 1.5 | 0.53 | 0.3496 |
| 0.9 | 75.0 | 1.13 | 0.426 | 0.2899 |
| 0.9 | 105.0 | 3.75 | 1.5 | 0.9259 |
| 0.9 | 135.0 | 3.52 | 2.15 | 1.3501 |
| 0.9 | 165.0 | 0.755 | 0.539 | 0.5266 |
| 0.9 | 195.0 | 0.859 | 0.514 | 1.1886 |
| 0.9 | 225.0 | 0.796 | 0.379 | 0.4152 |
| 0.9 | 255.0 | 1.87 | 0.899 | 0.6219 |
| 0.9 | 285.0 | 0.951 | 0.487 | 0.1548 |
| 0.9 | 315.0 | 0.882 | 0.306 | 0.1556 |
| 0.9 | 345.0 | 1.24 | 0.531 | 0.2775 |
Experiment comment: