Measurement E9M21
| 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: | 0.35 — 0.45 GeV2 | |
| W: | 1.5 GeV | |
| ε: | 0.621 | |
| 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 | 0.22 | 0.136 |
| -0.9 | 45.0 | 1.19 | 0.463 |
| -0.9 | 75.0 | 0.892 | 0.562 |
| -0.9 | 105.0 | 0.359 | 0.217 |
| -0.9 | 135.0 | 2.02 | 0.927 |
| -0.9 | 165.0 | 2.28 | 1.14 |
| -0.9 | 195.0 | 1.03 | 0.52 |
| -0.9 | 225.0 | 1.04 | 0.814 |
| -0.9 | 255.0 | 0.973 | 0.743 |
| -0.9 | 285.0 | 1.15 | 0.502 |
| -0.9 | 315.0 | 0.381 | 0.204 |
| -0.9 | 345.0 | 0.318 | 0.173 |
| -0.7 | 15.0 | 0.561 | 0.201 |
| -0.7 | 45.0 | 0.926 | 0.405 |
| -0.7 | 75.0 | 2.19 | 0.81 |
| -0.7 | 105.0 | 3.18 | 0.881 |
| -0.7 | 135.0 | 2.43 | 0.885 |
| -0.7 | 165.0 | 2.67 | 2.24 |
| -0.7 | 195.0 | 9.2 | 8.41 |
| -0.7 | 225.0 | 4.32 | 1.2 |
| -0.7 | 255.0 | 2.64 | 0.8 |
| -0.7 | 285.0 | 1.03 | 0.391 |
| -0.7 | 315.0 | 1.5 | 0.588 |
| -0.7 | 345.0 | 1.34 | 0.406 |
| -0.5 | 15.0 | 0.969 | 0.264 |
| -0.5 | 45.0 | 2.59 | 0.765 |
| -0.5 | 75.0 | 4.32 | 0.982 |
| -0.5 | 105.0 | 3.35 | 0.63 |
| -0.5 | 135.0 | 2.85 | 0.676 |
| -0.5 | 225.0 | 3.52 | 0.859 |
| -0.5 | 255.0 | 4.79 | 0.844 |
| -0.5 | 285.0 | 2.34 | 0.598 |
| -0.5 | 315.0 | 1.83 | 0.625 |
| -0.5 | 345.0 | 1.42 | 0.369 |
| -0.3 | 15.0 | 1.79 | 0.401 |
| -0.3 | 45.0 | 1.69 | 0.479 |
| -0.3 | 75.0 | 2.52 | 0.486 |
| -0.3 | 105.0 | 7.11 | 0.993 |
| -0.3 | 135.0 | 3.9 | 0.995 |
| -0.3 | 225.0 | 2.88 | 0.771 |
| -0.3 | 255.0 | 4.59 | 0.716 |
| -0.3 | 285.0 | 6.19 | 1.06 |
| -0.3 | 315.0 | 3.17 | 0.757 |
| -0.3 | 345.0 | 1.76 | 0.388 |
| -0.1 | 15.0 | 1.49 | 0.355 |
| -0.1 | 45.0 | 3.48 | 0.771 |
| -0.1 | 75.0 | 3.12 | 0.575 |
| -0.1 | 105.0 | 4.69 | 0.681 |
| -0.1 | 135.0 | 4.67 | 1.31 |
| -0.1 | 165.0 | 2.36 | 0.932 |
| -0.1 | 195.0 | 6.76 | 2.86 |
| -0.1 | 225.0 | 4.58 | 1.49 |
| -0.1 | 255.0 | 4.28 | 0.676 |
| -0.1 | 285.0 | 5.73 | 0.903 |
| -0.1 | 315.0 | 3.24 | 0.792 |
| -0.1 | 345.0 | 2.82 | 0.573 |
| 0.1 | 15.0 | 2.47 | 0.824 |
| 0.1 | 45.0 | 2.98 | 0.649 |
| 0.1 | 75.0 | 4.6 | 0.736 |
| 0.1 | 105.0 | 4.4 | 0.743 |
| 0.1 | 135.0 | 4.34 | 1.15 |
| 0.1 | 165.0 | 4.03 | 1.4 |
| 0.1 | 195.0 | 5.94 | 1.83 |
| 0.1 | 225.0 | 4.3 | 1.11 |
| 0.1 | 255.0 | 3.52 | 0.557 |
| 0.1 | 285.0 | 5.28 | 0.724 |
| 0.1 | 315.0 | 2.38 | 0.545 |
| 0.1 | 345.0 | 5.34 | 1.35 |
| 0.3 | 15.0 | 2.69 | 0.886 |
| 0.3 | 45.0 | 4.2 | 0.849 |
| 0.3 | 75.0 | 4.15 | 0.654 |
| 0.3 | 105.0 | 4.71 | 0.793 |
| 0.3 | 135.0 | 3.24 | 0.781 |
| 0.3 | 165.0 | 2.57 | 0.8 |
| 0.3 | 195.0 | 2.82 | 0.992 |
| 0.3 | 225.0 | 3.49 | 0.868 |
| 0.3 | 255.0 | 4.05 | 0.745 |
| 0.3 | 285.0 | 4.92 | 0.75 |
| 0.3 | 315.0 | 4.67 | 0.949 |
| 0.3 | 345.0 | 1.64 | 0.519 |
| 0.5 | 15.0 | 2.63 | 0.745 |
| 0.5 | 45.0 | 2.41 | 0.547 |
| 0.5 | 75.0 | 2.88 | 0.504 |
| 0.5 | 105.0 | 3.56 | 0.715 |
| 0.5 | 135.0 | 2.68 | 0.604 |
| 0.5 | 165.0 | 1.91 | 0.598 |
| 0.5 | 195.0 | 4.0 | 1.18 |
| 0.5 | 225.0 | 3.31 | 0.7 |
| 0.5 | 255.0 | 4.68 | 0.883 |
| 0.5 | 285.0 | 3.69 | 0.638 |
| 0.5 | 315.0 | 2.59 | 0.657 |
| 0.5 | 345.0 | 2.21 | 0.563 |
| 0.7 | 15.0 | 2.44 | 0.643 |
| 0.7 | 45.0 | 2.49 | 0.623 |
| 0.7 | 75.0 | 3.55 | 0.623 |
| 0.7 | 105.0 | 4.01 | 0.952 |
| 0.7 | 135.0 | 1.67 | 0.525 |
| 0.7 | 165.0 | 1.18 | 0.742 |
| 0.7 | 195.0 | 3.22 | 1.29 |
| 0.7 | 225.0 | 0.964 | 0.308 |
| 0.7 | 255.0 | 1.49 | 0.39 |
| 0.7 | 285.0 | 2.43 | 0.476 |
| 0.7 | 315.0 | 3.07 | 0.873 |
| 0.7 | 345.0 | 1.56 | 0.41 |
| 0.9 | 15.0 | 1.84 | 0.635 |
| 0.9 | 45.0 | 2.12 | 0.726 |
| 0.9 | 75.0 | 2.3 | 0.5 |
| 0.9 | 105.0 | 3.28 | 0.902 |
| 0.9 | 135.0 | 1.58 | 0.629 |
| 0.9 | 165.0 | 0.762 | 0.478 |
| 0.9 | 195.0 | 1.24 | 0.73 |
| 0.9 | 225.0 | 1.07 | 0.607 |
| 0.9 | 255.0 | 1.69 | 0.551 |
| 0.9 | 285.0 | 1.94 | 0.515 |
| 0.9 | 315.0 | 3.08 | 1.15 |
| 0.9 | 345.0 | 6.44 | 2.39 |
Experiment comment: