Measurement E9M257
| 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: | 1.0 — 1.3 GeV2 | |
| W: | 1.16 GeV | |
| ε: | 0.791 | |
| 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 | 3.06 | 1.06 | 0.5693 |
| -0.9 | 45.0 | 1.32 | 0.446 | 0.4155 |
| -0.9 | 75.0 | 2.28 | 0.657 | 0.7763 |
| -0.9 | 105.0 | 2.35 | 0.817 | 0.4404 |
| -0.9 | 135.0 | 0.989 | 0.312 | 0.2321 |
| -0.9 | 165.0 | 1.08 | 0.312 | 0.3605 |
| -0.9 | 195.0 | 1.1 | 0.359 | 0.2455 |
| -0.9 | 225.0 | 2.08 | 0.566 | 0.5208 |
| -0.9 | 255.0 | 2.61 | 0.797 | 0.8071 |
| -0.9 | 285.0 | 2.02 | 0.525 | 0.3922 |
| -0.9 | 315.0 | 2.08 | 0.717 | 0.5959 |
| -0.9 | 345.0 | 1.37 | 0.431 | 0.1396 |
| -0.7 | 15.0 | 2.4 | 0.665 | 0.2554 |
| -0.7 | 45.0 | 4.43 | 1.16 | 1.3134 |
| -0.7 | 75.0 | 2.63 | 0.688 | 0.7605 |
| -0.7 | 105.0 | 1.58 | 0.4 | 0.3069 |
| -0.7 | 135.0 | 1.1 | 0.312 | 0.2074 |
| -0.7 | 165.0 | 1.43 | 0.401 | 0.2921 |
| -0.7 | 195.0 | 1.77 | 0.513 | 0.3215 |
| -0.7 | 225.0 | 3.76 | 0.828 | 1.0383 |
| -0.7 | 255.0 | 2.53 | 0.685 | 0.1389 |
| -0.7 | 285.0 | 2.62 | 0.633 | 0.7355 |
| -0.7 | 315.0 | 0.96 | 0.272 | 0.259 |
| -0.7 | 345.0 | 1.37 | 0.401 | 0.0644 |
| -0.5 | 15.0 | 1.48 | 0.438 | 0.2348 |
| -0.5 | 45.0 | 1.42 | 0.397 | 0.2077 |
| -0.5 | 75.0 | 1.29 | 0.389 | 0.356 |
| -0.5 | 105.0 | 4.08 | 1.03 | 0.8742 |
| -0.5 | 135.0 | 1.97 | 0.49 | 0.3564 |
| -0.5 | 165.0 | 1.82 | 0.428 | 0.1064 |
| -0.5 | 195.0 | 1.72 | 0.404 | 0.2391 |
| -0.5 | 225.0 | 2.23 | 0.56 | 0.3219 |
| -0.5 | 255.0 | 2.1 | 0.53 | 0.2536 |
| -0.5 | 285.0 | 1.85 | 0.454 | 0.229 |
| -0.5 | 315.0 | 1.04 | 0.316 | 0.1106 |
| -0.5 | 345.0 | 1.31 | 0.314 | 0.5756 |
| -0.3 | 15.0 | 3.39 | 0.827 | 0.3568 |
| -0.3 | 45.0 | 1.81 | 0.45 | 0.0324 |
| -0.3 | 75.0 | 2.66 | 0.605 | 0.2658 |
| -0.3 | 105.0 | 2.73 | 0.617 | 0.4525 |
| -0.3 | 135.0 | 3.02 | 0.604 | 0.472 |
| -0.3 | 165.0 | 1.73 | 0.427 | 0.4594 |
| -0.3 | 195.0 | 3.08 | 0.662 | 0.2915 |
| -0.3 | 225.0 | 1.63 | 0.365 | 0.4067 |
| -0.3 | 255.0 | 1.72 | 0.463 | 0.177 |
| -0.3 | 285.0 | 1.75 | 0.488 | 0.2972 |
| -0.3 | 315.0 | 3.13 | 0.738 | 0.6431 |
| -0.3 | 345.0 | 1.48 | 0.396 | 0.2751 |
| -0.1 | 15.0 | 1.24 | 0.37 | 0.1553 |
| -0.1 | 45.0 | 1.51 | 0.413 | 0.1508 |
| -0.1 | 75.0 | 1.91 | 0.459 | 0.2416 |
| -0.1 | 105.0 | 3.19 | 0.702 | 0.0863 |
| -0.1 | 135.0 | 2.49 | 0.523 | 0.3296 |
| -0.1 | 165.0 | 2.56 | 0.529 | 0.5913 |
| -0.1 | 195.0 | 2.43 | 0.528 | 0.2022 |
| -0.1 | 225.0 | 2.26 | 0.467 | 0.1823 |
| -0.1 | 255.0 | 2.68 | 0.627 | 0.3973 |
| -0.1 | 285.0 | 2.03 | 0.489 | 0.1602 |
| -0.1 | 315.0 | 2.7 | 0.709 | 0.5147 |
| -0.1 | 345.0 | 1.57 | 0.38 | 0.1632 |
| 0.1 | 15.0 | 1.91 | 0.484 | 0.3808 |
| 0.1 | 45.0 | 3.26 | 0.724 | 0.5386 |
| 0.1 | 75.0 | 2.62 | 0.59 | 0.1843 |
| 0.1 | 105.0 | 3.11 | 0.685 | 0.1405 |
| 0.1 | 135.0 | 5.2 | 0.951 | 0.3959 |
| 0.1 | 165.0 | 3.79 | 0.768 | 0.5004 |
| 0.1 | 195.0 | 3.0 | 0.627 | 0.4364 |
| 0.1 | 225.0 | 2.93 | 0.594 | 0.2966 |
| 0.1 | 255.0 | 2.93 | 0.605 | 0.5417 |
| 0.1 | 285.0 | 3.21 | 0.631 | 1.2767 |
| 0.1 | 315.0 | 2.8 | 0.628 | 0.0583 |
| 0.1 | 345.0 | 1.28 | 0.333 | 0.0949 |
| 0.3 | 15.0 | 1.66 | 0.394 | 0.2262 |
| 0.3 | 45.0 | 0.745 | 0.251 | 0.199 |
| 0.3 | 75.0 | 3.76 | 0.89 | 0.7411 |
| 0.3 | 105.0 | 2.7 | 0.594 | 0.6865 |
| 0.3 | 135.0 | 3.89 | 0.729 | 0.5776 |
| 0.3 | 165.0 | 4.09 | 0.747 | 0.1734 |
| 0.3 | 195.0 | 6.31 | 1.18 | 1.0739 |
| 0.3 | 225.0 | 2.48 | 0.549 | 0.3293 |
| 0.3 | 255.0 | 3.04 | 0.677 | 0.4212 |
| 0.3 | 285.0 | 3.02 | 0.625 | 0.8055 |
| 0.3 | 315.0 | 2.13 | 0.5 | 0.2125 |
| 0.3 | 345.0 | 1.5 | 0.37 | 0.2611 |
| 0.5 | 15.0 | 1.17 | 0.292 | 0.5874 |
| 0.5 | 45.0 | 1.52 | 0.394 | 0.1504 |
| 0.5 | 75.0 | 2.95 | 0.649 | 0.1187 |
| 0.5 | 105.0 | 4.93 | 1.04 | 0.6961 |
| 0.5 | 135.0 | 5.03 | 0.931 | 0.7678 |
| 0.5 | 165.0 | 3.81 | 0.664 | 0.4863 |
| 0.5 | 195.0 | 2.96 | 0.665 | 0.5376 |
| 0.5 | 225.0 | 5.64 | 1.13 | 0.8621 |
| 0.5 | 255.0 | 2.35 | 0.567 | 0.2951 |
| 0.5 | 285.0 | 2.41 | 0.484 | 0.4538 |
| 0.5 | 315.0 | 1.75 | 0.399 | 0.1836 |
| 0.5 | 345.0 | 1.53 | 0.378 | 0.1403 |
| 0.7 | 15.0 | 1.3 | 0.306 | 0.2305 |
| 0.7 | 45.0 | 1.42 | 0.381 | 0.1235 |
| 0.7 | 75.0 | 2.13 | 0.48 | 0.3862 |
| 0.7 | 105.0 | 3.18 | 0.614 | 0.7136 |
| 0.7 | 135.0 | 5.94 | 1.17 | 1.209 |
| 0.7 | 165.0 | 4.5 | 0.83 | 0.5385 |
| 0.7 | 195.0 | 4.05 | 0.729 | 0.7576 |
| 0.7 | 225.0 | 2.86 | 0.558 | 0.945 |
| 0.7 | 255.0 | 2.19 | 0.476 | 0.2523 |
| 0.7 | 285.0 | 2.68 | 0.578 | 0.6395 |
| 0.7 | 315.0 | 2.34 | 0.523 | 0.3324 |
| 0.7 | 345.0 | 1.58 | 0.43 | 0.3212 |
| 0.9 | 15.0 | 2.04 | 0.619 | 0.2665 |
| 0.9 | 45.0 | 1.62 | 0.481 | 0.3724 |
| 0.9 | 75.0 | 3.06 | 0.721 | 0.3843 |
| 0.9 | 105.0 | 3.87 | 1.03 | 0.9282 |
| 0.9 | 135.0 | 3.66 | 0.873 | 0.5742 |
| 0.9 | 165.0 | 3.71 | 0.826 | 0.5041 |
| 0.9 | 195.0 | 3.82 | 0.72 | 0.7425 |
| 0.9 | 225.0 | 4.74 | 1.03 | 0.8347 |
| 0.9 | 255.0 | 5.11 | 1.32 | 1.3045 |
| 0.9 | 285.0 | 2.98 | 0.757 | 0.3771 |
| 0.9 | 315.0 | 3.12 | 0.797 | 0.318 |
| 0.9 | 345.0 | 4.1 | 0.999 | 0.3885 |
Experiment comment: