Measurement E9M39
| 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: | 1.3 — 1.6 GeV2 | |
| W: | 1.26 GeV | |
| ε: | 0.669 | |
| 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 | 1.65 | 0.531 | 0.1953 |
| -0.9 | 45.0 | 1.98 | 0.538 | 0.4388 |
| -0.9 | 75.0 | 1.42 | 0.43 | 0.136 |
| -0.9 | 105.0 | 1.86 | 0.547 | 0.2915 |
| -0.9 | 135.0 | 0.466 | 0.163 | 0.1878 |
| -0.9 | 165.0 | 1.75 | 0.611 | 0.1384 |
| -0.9 | 195.0 | 0.997 | 0.344 | 0.111 |
| -0.9 | 225.0 | 3.15 | 0.993 | 0.9315 |
| -0.9 | 255.0 | 1.66 | 0.492 | 0.4713 |
| -0.9 | 285.0 | 1.62 | 0.416 | 0.5755 |
| -0.9 | 315.0 | 1.13 | 0.33 | 0.3313 |
| -0.9 | 345.0 | 1.66 | 0.479 | 0.3163 |
| -0.7 | 15.0 | 1.9 | 0.405 | 0.3432 |
| -0.7 | 45.0 | 2.31 | 0.48 | 0.6423 |
| -0.7 | 75.0 | 2.92 | 0.695 | 0.2964 |
| -0.7 | 105.0 | 1.77 | 0.441 | 0.4729 |
| -0.7 | 135.0 | 1.54 | 0.495 | 0.263 |
| -0.7 | 165.0 | 1.21 | 0.358 | 0.1031 |
| -0.7 | 195.0 | 1.27 | 0.367 | 0.1128 |
| -0.7 | 225.0 | 2.66 | 0.762 | 0.1749 |
| -0.7 | 255.0 | 2.2 | 0.594 | 0.4407 |
| -0.7 | 285.0 | 1.86 | 0.455 | 0.498 |
| -0.7 | 315.0 | 3.06 | 0.64 | 0.0805 |
| -0.7 | 345.0 | 2.53 | 0.597 | 0.265 |
| -0.5 | 15.0 | 2.27 | 0.52 | 0.265 |
| -0.5 | 45.0 | 3.27 | 0.66 | 0.179 |
| -0.5 | 75.0 | 2.74 | 0.612 | 0.1155 |
| -0.5 | 105.0 | 3.48 | 0.802 | 0.5011 |
| -0.5 | 135.0 | 3.42 | 0.798 | 0.3748 |
| -0.5 | 165.0 | 1.61 | 0.459 | 0.1492 |
| -0.5 | 195.0 | 1.4 | 0.377 | 0.3602 |
| -0.5 | 225.0 | 3.44 | 0.76 | 0.3358 |
| -0.5 | 255.0 | 3.49 | 0.83 | 0.5729 |
| -0.5 | 285.0 | 4.29 | 0.937 | 0.7828 |
| -0.5 | 315.0 | 2.68 | 0.542 | 0.1983 |
| -0.5 | 345.0 | 2.57 | 0.581 | 0.6054 |
| -0.3 | 15.0 | 4.13 | 0.832 | 0.7003 |
| -0.3 | 45.0 | 2.14 | 0.456 | 0.1177 |
| -0.3 | 75.0 | 3.12 | 0.663 | 0.181 |
| -0.3 | 105.0 | 2.81 | 0.655 | 0.2778 |
| -0.3 | 135.0 | 2.82 | 0.724 | 0.1948 |
| -0.3 | 165.0 | 2.88 | 0.714 | 0.447 |
| -0.3 | 195.0 | 1.49 | 0.363 | 0.534 |
| -0.3 | 225.0 | 2.96 | 0.803 | 0.4549 |
| -0.3 | 255.0 | 3.72 | 0.765 | 0.2743 |
| -0.3 | 285.0 | 4.39 | 0.883 | 0.393 |
| -0.3 | 315.0 | 4.33 | 0.826 | 0.3488 |
| -0.3 | 345.0 | 1.9 | 0.395 | 0.1759 |
| -0.1 | 15.0 | 2.03 | 0.44 | 0.4515 |
| -0.1 | 45.0 | 2.39 | 0.504 | 0.1787 |
| -0.1 | 75.0 | 3.14 | 0.659 | 0.3328 |
| -0.1 | 105.0 | 3.75 | 0.923 | 0.3285 |
| -0.1 | 135.0 | 2.13 | 0.501 | 0.5814 |
| -0.1 | 165.0 | 1.41 | 0.357 | 0.4441 |
| -0.1 | 195.0 | 1.87 | 0.5 | 0.3343 |
| -0.1 | 225.0 | 4.55 | 1.12 | 0.846 |
| -0.1 | 255.0 | 4.25 | 0.903 | 0.2649 |
| -0.1 | 285.0 | 3.95 | 0.737 | 0.3283 |
| -0.1 | 315.0 | 3.26 | 0.649 | 0.2087 |
| -0.1 | 345.0 | 2.17 | 0.453 | 0.4401 |
| 0.1 | 15.0 | 3.07 | 0.623 | 0.1077 |
| 0.1 | 45.0 | 3.53 | 0.748 | 0.2277 |
| 0.1 | 75.0 | 4.88 | 0.955 | 0.7863 |
| 0.1 | 105.0 | 6.25 | 1.42 | 0.8116 |
| 0.1 | 135.0 | 2.76 | 0.702 | 0.1913 |
| 0.1 | 165.0 | 2.12 | 0.473 | 0.3998 |
| 0.1 | 195.0 | 3.37 | 0.772 | 0.5608 |
| 0.1 | 225.0 | 2.26 | 0.651 | 0.3791 |
| 0.1 | 255.0 | 4.3 | 0.984 | 0.2356 |
| 0.1 | 285.0 | 4.12 | 0.717 | 0.4555 |
| 0.1 | 315.0 | 5.05 | 0.984 | 0.5803 |
| 0.1 | 345.0 | 2.98 | 0.61 | 0.169 |
| 0.3 | 15.0 | 1.87 | 0.427 | 0.0787 |
| 0.3 | 45.0 | 3.45 | 0.755 | 0.1699 |
| 0.3 | 75.0 | 4.46 | 0.945 | 0.2598 |
| 0.3 | 105.0 | 6.17 | 1.36 | 0.4133 |
| 0.3 | 135.0 | 3.56 | 0.877 | 0.5202 |
| 0.3 | 165.0 | 3.71 | 0.835 | 0.3017 |
| 0.3 | 195.0 | 2.18 | 0.503 | 0.4849 |
| 0.3 | 225.0 | 4.68 | 1.1 | 0.6377 |
| 0.3 | 255.0 | 8.81 | 1.76 | 2.5423 |
| 0.3 | 285.0 | 3.47 | 0.674 | 0.5834 |
| 0.3 | 315.0 | 2.2 | 0.492 | 0.0482 |
| 0.3 | 345.0 | 2.45 | 0.51 | 0.4658 |
| 0.5 | 15.0 | 1.5 | 0.347 | 0.2855 |
| 0.5 | 45.0 | 3.22 | 0.71 | 0.1621 |
| 0.5 | 75.0 | 2.4 | 0.572 | 0.9097 |
| 0.5 | 105.0 | 5.6 | 1.11 | 1.0391 |
| 0.5 | 135.0 | 2.72 | 0.692 | 0.2033 |
| 0.5 | 165.0 | 2.73 | 0.636 | 0.4948 |
| 0.5 | 195.0 | 2.12 | 0.526 | 0.3489 |
| 0.5 | 225.0 | 3.19 | 0.776 | 0.5217 |
| 0.5 | 255.0 | 4.85 | 1.1 | 0.3163 |
| 0.5 | 285.0 | 4.5 | 0.986 | 0.6876 |
| 0.5 | 315.0 | 2.47 | 0.589 | 0.0324 |
| 0.5 | 345.0 | 1.91 | 0.496 | 0.4323 |
| 0.7 | 15.0 | 1.52 | 0.391 | 0.2329 |
| 0.7 | 45.0 | 1.27 | 0.356 | 0.2682 |
| 0.7 | 75.0 | 3.2 | 0.71 | 0.2108 |
| 0.7 | 105.0 | 3.54 | 0.871 | 0.5865 |
| 0.7 | 135.0 | 1.41 | 0.425 | 0.1539 |
| 0.7 | 165.0 | 2.82 | 0.691 | 0.4283 |
| 0.7 | 195.0 | 2.76 | 0.66 | 0.5933 |
| 0.7 | 225.0 | 3.36 | 0.905 | 0.2966 |
| 0.7 | 255.0 | 3.51 | 0.859 | 0.363 |
| 0.7 | 285.0 | 3.92 | 1.0 | 0.8624 |
| 0.7 | 315.0 | 2.04 | 0.515 | 0.3533 |
| 0.7 | 345.0 | 1.75 | 0.465 | 0.2574 |
| 0.9 | 15.0 | 0.705 | 0.264 | 0.0667 |
| 0.9 | 45.0 | 1.91 | 0.662 | 0.1914 |
| 0.9 | 75.0 | 2.08 | 0.672 | 0.1116 |
| 0.9 | 105.0 | 3.48 | 1.29 | 0.525 |
| 0.9 | 135.0 | 3.02 | 0.863 | 0.4899 |
| 0.9 | 165.0 | 3.2 | 1.05 | 0.7036 |
| 0.9 | 195.0 | 1.53 | 0.482 | 0.5157 |
| 0.9 | 225.0 | 2.97 | 1.03 | 0.5963 |
| 0.9 | 255.0 | 2.36 | 0.705 | 0.3124 |
| 0.9 | 285.0 | 1.56 | 0.516 | 0.0999 |
| 0.9 | 315.0 | 1.51 | 0.491 | 0.2946 |
| 0.9 | 345.0 | 1.57 | 0.458 | 0.2147 |
Experiment comment: