Measurement E9M212
| 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: | 0.7 — 0.8 GeV2 | |
| W: | 1.46 GeV | |
| ε: | 0.771 | |
| 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 |
|---|---|---|---|
| -0.9 | 15.0 | 0.454 | 0.22 |
| -0.9 | 45.0 | 0.311 | 0.172 |
| -0.9 | 75.0 | 0.356 | 0.174 |
| -0.9 | 105.0 | 0.577 | 0.271 |
| -0.9 | 135.0 | 1.5 | 0.567 |
| -0.9 | 165.0 | 0.405 | 0.179 |
| -0.9 | 195.0 | 1.38 | 0.404 |
| -0.9 | 225.0 | 1.51 | 0.603 |
| -0.9 | 255.0 | 0.447 | 0.191 |
| -0.9 | 285.0 | 0.319 | 0.146 |
| -0.9 | 315.0 | 0.163 | 0.1 |
| -0.9 | 345.0 | 0.28 | 0.143 |
| -0.7 | 15.0 | 0.536 | 0.22 |
| -0.7 | 45.0 | 1.12 | 0.425 |
| -0.7 | 75.0 | 1.79 | 0.658 |
| -0.7 | 105.0 | 1.68 | 0.798 |
| -0.7 | 135.0 | 1.63 | 0.847 |
| -0.7 | 165.0 | 1.86 | 0.577 |
| -0.7 | 195.0 | 1.38 | 0.465 |
| -0.7 | 225.0 | 2.29 | 1.58 |
| -0.7 | 255.0 | 1.75 | 1.01 |
| -0.7 | 285.0 | 0.738 | 0.4 |
| -0.7 | 315.0 | 0.894 | 0.3 |
| -0.7 | 345.0 | 0.853 | 0.291 |
| -0.5 | 15.0 | 1.0 | 0.301 |
| -0.5 | 45.0 | 0.882 | 0.334 |
| -0.5 | 75.0 | 2.69 | 0.973 |
| -0.5 | 105.0 | 1.21 | 0.583 |
| -0.5 | 135.0 | 15.0 | 9.02 |
| -0.5 | 165.0 | 2.34 | 1.66 |
| -0.5 | 195.0 | 3.31 | 2.34 |
| -0.5 | 225.0 | 1.19 | 1.27 |
| -0.5 | 255.0 | 2.56 | 1.03 |
| -0.5 | 285.0 | 2.15 | 0.851 |
| -0.5 | 315.0 | 1.46 | 0.473 |
| -0.5 | 345.0 | 0.467 | 0.189 |
| -0.3 | 15.0 | 1.31 | 0.282 |
| -0.3 | 45.0 | 2.11 | 0.556 |
| -0.3 | 75.0 | 3.21 | 1.1 |
| -0.3 | 105.0 | 2.43 | 0.621 |
| -0.3 | 135.0 | 1.57 | 0.465 |
| -0.3 | 165.0 | 1.73 | 2.0 |
| -0.3 | 195.0 | 17.6 | 20.4 |
| -0.3 | 225.0 | 2.78 | 0.83 |
| -0.3 | 255.0 | 2.55 | 0.637 |
| -0.3 | 285.0 | 2.13 | 0.717 |
| -0.3 | 315.0 | 1.8 | 0.476 |
| -0.3 | 345.0 | 0.983 | 0.271 |
| -0.1 | 15.0 | 1.41 | 0.403 |
| -0.1 | 45.0 | 1.96 | 0.485 |
| -0.1 | 75.0 | 2.97 | 0.886 |
| -0.1 | 105.0 | 3.3 | 0.663 |
| -0.1 | 135.0 | 2.22 | 0.45 |
| -0.1 | 165.0 | 1.06 | 0.83 |
| -0.1 | 195.0 | 6.25 | 4.43 |
| -0.1 | 225.0 | 2.29 | 0.481 |
| -0.1 | 255.0 | 3.02 | 0.567 |
| -0.1 | 285.0 | 2.77 | 0.832 |
| -0.1 | 315.0 | 2.33 | 0.58 |
| -0.1 | 345.0 | 0.977 | 0.287 |
| 0.1 | 15.0 | 0.896 | 0.271 |
| 0.1 | 45.0 | 1.45 | 0.428 |
| 0.1 | 75.0 | 2.15 | 0.555 |
| 0.1 | 105.0 | 2.57 | 0.458 |
| 0.1 | 135.0 | 3.09 | 0.658 |
| 0.1 | 165.0 | 2.56 | 1.29 |
| 0.1 | 195.0 | 0.604 | 0.32 |
| 0.1 | 225.0 | 2.53 | 0.482 |
| 0.1 | 255.0 | 3.35 | 0.597 |
| 0.1 | 285.0 | 2.85 | 0.805 |
| 0.1 | 315.0 | 1.77 | 0.492 |
| 0.1 | 345.0 | 1.8 | 0.519 |
| 0.3 | 15.0 | 1.07 | 0.3 |
| 0.3 | 45.0 | 1.46 | 0.439 |
| 0.3 | 75.0 | 1.48 | 0.397 |
| 0.3 | 105.0 | 3.5 | 0.694 |
| 0.3 | 135.0 | 1.77 | 0.434 |
| 0.3 | 195.0 | 1.06 | 0.825 |
| 0.3 | 225.0 | 2.49 | 0.509 |
| 0.3 | 255.0 | 2.64 | 0.536 |
| 0.3 | 285.0 | 1.81 | 0.5 |
| 0.3 | 315.0 | 2.77 | 0.656 |
| 0.3 | 345.0 | 1.17 | 0.336 |
| 0.5 | 15.0 | 1.05 | 0.284 |
| 0.5 | 45.0 | 1.15 | 0.378 |
| 0.5 | 75.0 | 3.36 | 0.895 |
| 0.5 | 105.0 | 2.04 | 0.452 |
| 0.5 | 135.0 | 1.73 | 0.525 |
| 0.5 | 195.0 | 1.12 | 1.25 |
| 0.5 | 225.0 | 1.86 | 0.529 |
| 0.5 | 255.0 | 2.3 | 0.522 |
| 0.5 | 285.0 | 1.42 | 0.401 |
| 0.5 | 315.0 | 2.43 | 0.738 |
| 0.5 | 345.0 | 0.672 | 0.227 |
| 0.7 | 15.0 | 1.74 | 0.626 |
| 0.7 | 45.0 | 1.02 | 0.408 |
| 0.7 | 75.0 | 1.86 | 0.56 |
| 0.7 | 105.0 | 1.71 | 0.506 |
| 0.7 | 135.0 | 1.1 | 0.353 |
| 0.7 | 195.0 | 4.59 | 6.51 |
| 0.7 | 225.0 | 0.378 | 0.177 |
| 0.7 | 255.0 | 2.7 | 0.73 |
| 0.7 | 285.0 | 1.77 | 0.502 |
| 0.7 | 315.0 | 1.57 | 0.542 |
| 0.7 | 345.0 | 1.94 | 0.574 |
| 0.9 | 15.0 | 1.59 | 0.707 |
| 0.9 | 45.0 | 2.41 | 1.14 |
| 0.9 | 75.0 | 0.847 | 0.336 |
| 0.9 | 105.0 | 1.16 | 0.5 |
| 0.9 | 135.0 | 0.469 | 0.261 |
| 0.9 | 225.0 | 0.515 | 0.291 |
| 0.9 | 255.0 | 0.922 | 0.345 |
| 0.9 | 285.0 | 0.621 | 0.251 |
| 0.9 | 315.0 | 1.25 | 0.48 |
| 0.9 | 345.0 | 2.22 | 0.993 |
Experiment comment: