Measurement E9M19
| 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: | 1.46 GeV | |
| ε: | 0.664 | |
| 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 | 0.0773 | 0.0573 |
| -0.9 | 45.0 | 0.425 | 0.207 |
| -0.9 | 75.0 | 0.193 | 0.198 |
| -0.9 | 105.0 | 0.787 | 0.435 |
| -0.9 | 135.0 | 1.24 | 0.643 |
| -0.9 | 165.0 | 1.11 | 0.513 |
| -0.9 | 195.0 | 1.25 | 0.515 |
| -0.9 | 225.0 | 1.49 | 0.728 |
| -0.9 | 255.0 | 3.46 | 2.33 |
| -0.9 | 285.0 | 0.839 | 0.475 |
| -0.9 | 315.0 | 0.212 | 0.129 |
| -0.9 | 345.0 | 0.726 | 0.335 |
| -0.7 | 15.0 | 0.586 | 0.24 |
| -0.7 | 45.0 | 1.9 | 0.611 |
| -0.7 | 75.0 | 2.51 | 1.14 |
| -0.7 | 105.0 | 1.64 | 0.635 |
| -0.7 | 135.0 | 3.99 | 1.96 |
| -0.7 | 165.0 | 3.61 | 3.14 |
| -0.7 | 225.0 | 3.29 | 1.06 |
| -0.7 | 255.0 | 1.64 | 0.635 |
| -0.7 | 285.0 | 1.0 | 0.75 |
| -0.7 | 315.0 | 1.1 | 0.429 |
| -0.7 | 345.0 | 0.392 | 0.159 |
| -0.5 | 15.0 | 1.07 | 0.281 |
| -0.5 | 45.0 | 0.772 | 0.304 |
| -0.5 | 75.0 | 2.8 | 0.763 |
| -0.5 | 105.0 | 3.2 | 0.632 |
| -0.5 | 135.0 | 2.51 | 0.577 |
| -0.5 | 165.0 | 2.48 | 2.03 |
| -0.5 | 195.0 | 1.73 | 1.94 |
| -0.5 | 225.0 | 5.55 | 1.24 |
| -0.5 | 255.0 | 2.99 | 0.627 |
| -0.5 | 285.0 | 3.37 | 0.876 |
| -0.5 | 315.0 | 0.882 | 0.375 |
| -0.5 | 345.0 | 1.61 | 0.431 |
| -0.3 | 15.0 | 1.65 | 0.359 |
| -0.3 | 45.0 | 1.87 | 0.537 |
| -0.3 | 75.0 | 2.88 | 0.632 |
| -0.3 | 105.0 | 3.46 | 0.566 |
| -0.3 | 135.0 | 2.87 | 0.704 |
| -0.3 | 195.0 | 5.47 | 6.7 |
| -0.3 | 225.0 | 3.83 | 0.857 |
| -0.3 | 255.0 | 5.03 | 0.778 |
| -0.3 | 285.0 | 2.49 | 0.585 |
| -0.3 | 315.0 | 1.68 | 0.5 |
| -0.3 | 345.0 | 1.27 | 0.342 |
| -0.1 | 15.0 | 2.55 | 0.528 |
| -0.1 | 45.0 | 2.35 | 0.633 |
| -0.1 | 75.0 | 4.78 | 0.832 |
| -0.1 | 105.0 | 3.3 | 0.537 |
| -0.1 | 135.0 | 2.31 | 0.656 |
| -0.1 | 195.0 | 4.32 | 3.95 |
| -0.1 | 225.0 | 4.89 | 1.43 |
| -0.1 | 255.0 | 3.08 | 0.527 |
| -0.1 | 285.0 | 4.06 | 0.797 |
| -0.1 | 315.0 | 3.27 | 0.746 |
| -0.1 | 345.0 | 1.25 | 0.302 |
| 0.1 | 15.0 | 2.11 | 0.561 |
| 0.1 | 45.0 | 1.78 | 0.493 |
| 0.1 | 75.0 | 3.74 | 0.642 |
| 0.1 | 105.0 | 3.57 | 0.64 |
| 0.1 | 135.0 | 1.84 | 0.878 |
| 0.1 | 165.0 | 4.07 | 1.66 |
| 0.1 | 195.0 | 3.76 | 1.78 |
| 0.1 | 225.0 | 3.46 | 1.31 |
| 0.1 | 255.0 | 2.72 | 0.485 |
| 0.1 | 285.0 | 3.0 | 0.567 |
| 0.1 | 315.0 | 3.16 | 0.749 |
| 0.1 | 345.0 | 1.4 | 0.366 |
| 0.3 | 15.0 | 1.59 | 0.389 |
| 0.3 | 45.0 | 2.61 | 0.703 |
| 0.3 | 75.0 | 2.83 | 0.505 |
| 0.3 | 105.0 | 3.35 | 0.622 |
| 0.3 | 135.0 | 2.55 | 0.758 |
| 0.3 | 165.0 | 2.89 | 1.16 |
| 0.3 | 195.0 | 4.05 | 1.39 |
| 0.3 | 225.0 | 3.07 | 1.01 |
| 0.3 | 255.0 | 2.98 | 0.606 |
| 0.3 | 285.0 | 2.94 | 0.572 |
| 0.3 | 315.0 | 2.28 | 0.599 |
| 0.3 | 345.0 | 2.42 | 0.583 |
| 0.5 | 15.0 | 1.19 | 0.294 |
| 0.5 | 45.0 | 2.06 | 0.56 |
| 0.5 | 75.0 | 3.52 | 0.648 |
| 0.5 | 105.0 | 3.73 | 0.83 |
| 0.5 | 135.0 | 2.45 | 0.768 |
| 0.5 | 165.0 | 0.469 | 0.283 |
| 0.5 | 195.0 | 2.76 | 1.09 |
| 0.5 | 225.0 | 2.14 | 0.756 |
| 0.5 | 255.0 | 3.32 | 0.641 |
| 0.5 | 285.0 | 2.46 | 0.493 |
| 0.5 | 315.0 | 1.72 | 0.45 |
| 0.5 | 345.0 | 1.65 | 0.419 |
| 0.7 | 15.0 | 1.54 | 0.347 |
| 0.7 | 45.0 | 1.47 | 0.42 |
| 0.7 | 75.0 | 2.6 | 0.545 |
| 0.7 | 105.0 | 2.62 | 0.68 |
| 0.7 | 135.0 | 1.88 | 0.649 |
| 0.7 | 165.0 | 0.761 | 0.409 |
| 0.7 | 195.0 | 1.26 | 0.567 |
| 0.7 | 225.0 | 1.11 | 0.495 |
| 0.7 | 255.0 | 1.85 | 0.461 |
| 0.7 | 285.0 | 1.57 | 0.361 |
| 0.7 | 315.0 | 1.29 | 0.371 |
| 0.7 | 345.0 | 1.78 | 0.422 |
| 0.9 | 15.0 | 2.18 | 0.706 |
| 0.9 | 45.0 | 2.13 | 0.766 |
| 0.9 | 75.0 | 2.6 | 0.627 |
| 0.9 | 105.0 | 1.38 | 0.407 |
| 0.9 | 135.0 | 0.814 | 0.617 |
| 0.9 | 165.0 | 0.72 | 0.807 |
| 0.9 | 195.0 | 0.39 | 0.406 |
| 0.9 | 225.0 | 0.678 | 0.52 |
| 0.9 | 255.0 | 0.646 | 0.282 |
| 0.9 | 285.0 | 0.712 | 0.244 |
| 0.9 | 315.0 | 1.54 | 0.607 |
| 0.9 | 345.0 | 1.29 | 0.436 |
Experiment comment: