Measurement E9M177
| 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: | 0.6 — 0.7 GeV2 | |
| W: | 1.36 GeV | |
| ε: | 0.842 | |
| 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 | 0.853 | 0.361 | 0.2146 |
| -0.9 | 45.0 | 0.597 | 0.293 | 0.1327 |
| -0.9 | 75.0 | 0.898 | 0.377 | 0.1843 |
| -0.9 | 105.0 | 1.03 | 0.44 | 0.1602 |
| -0.9 | 135.0 | 0.64 | 0.217 | 0.5506 |
| -0.9 | 165.0 | 0.299 | 0.182 | 0.1466 |
| -0.9 | 195.0 | 1.3 | 0.433 | 0.3621 |
| -0.9 | 225.0 | 1.15 | 0.444 | 0.0743 |
| -0.9 | 255.0 | 1.61 | 0.625 | 0.4915 |
| -0.9 | 285.0 | 1.4 | 0.513 | 0.2815 |
| -0.9 | 315.0 | 0.753 | 0.304 | 0.2507 |
| -0.9 | 345.0 | 0.417 | 0.204 | 0.0788 |
| -0.7 | 15.0 | 0.989 | 0.285 | 0.074 |
| -0.7 | 45.0 | 1.28 | 0.367 | 0.1173 |
| -0.7 | 75.0 | 1.45 | 0.472 | 0.1534 |
| -0.7 | 105.0 | 3.1 | 0.827 | 0.4622 |
| -0.7 | 135.0 | 2.26 | 0.734 | 0.3385 |
| -0.7 | 165.0 | 1.38 | 0.395 | 0.2008 |
| -0.7 | 195.0 | 3.27 | 0.944 | 0.3446 |
| -0.7 | 225.0 | 2.46 | 0.757 | 0.2493 |
| -0.7 | 255.0 | 1.05 | 0.373 | 0.1718 |
| -0.7 | 285.0 | 1.23 | 0.366 | 0.1217 |
| -0.7 | 315.0 | 1.3 | 0.344 | 0.1509 |
| -0.7 | 345.0 | 1.09 | 0.284 | 0.0585 |
| -0.5 | 15.0 | 2.18 | 0.464 | 0.2389 |
| -0.5 | 45.0 | 2.05 | 0.431 | 0.4943 |
| -0.5 | 75.0 | 4.22 | 1.1 | 0.3921 |
| -0.5 | 105.0 | 4.12 | 1.92 | 0.7941 |
| -0.5 | 135.0 | 5.88 | 2.8 | 1.8991 |
| -0.5 | 165.0 | 0.91 | 0.307 | 0.6315 |
| -0.5 | 195.0 | 1.32 | 0.49 | 0.1243 |
| -0.5 | 225.0 | 2.05 | 1.32 | 0.5446 |
| -0.5 | 255.0 | 2.35 | 1.29 | 0.2921 |
| -0.5 | 285.0 | 3.1 | 0.748 | 0.2855 |
| -0.5 | 315.0 | 2.1 | 0.446 | 0.2758 |
| -0.5 | 345.0 | 1.71 | 0.355 | 0.1933 |
| -0.3 | 15.0 | 1.22 | 0.266 | 0.0704 |
| -0.3 | 45.0 | 2.81 | 0.504 | 0.0873 |
| -0.3 | 75.0 | 4.26 | 1.59 | 1.2489 |
| -0.3 | 105.0 | 6.56 | 3.29 | 1.5996 |
| -0.3 | 165.0 | 2.15 | 0.817 | 0.6856 |
| -0.3 | 195.0 | 2.09 | 0.993 | 0.4661 |
| -0.3 | 225.0 | 5.95 | 3.85 | 1.1599 |
| -0.3 | 255.0 | 4.48 | 2.08 | 1.4009 |
| -0.3 | 285.0 | 3.76 | 1.16 | 0.2693 |
| -0.3 | 315.0 | 2.08 | 0.386 | 0.3027 |
| -0.3 | 345.0 | 1.33 | 0.269 | 0.2902 |
| -0.1 | 15.0 | 2.74 | 0.53 | 0.2443 |
| -0.1 | 45.0 | 2.33 | 0.452 | 0.3423 |
| -0.1 | 75.0 | 3.31 | 1.22 | 0.2475 |
| -0.1 | 105.0 | 4.52 | 1.13 | 2.3336 |
| -0.1 | 135.0 | 4.95 | 1.56 | 0.4494 |
| -0.1 | 165.0 | 2.93 | 1.22 | 2.0334 |
| -0.1 | 195.0 | 1.19 | 0.921 | 0.3016 |
| -0.1 | 225.0 | 5.55 | 1.71 | 0.5776 |
| -0.1 | 255.0 | 4.14 | 1.4 | 0.6968 |
| -0.1 | 285.0 | 3.09 | 1.02 | 0.6381 |
| -0.1 | 315.0 | 4.16 | 0.653 | 0.2727 |
| -0.1 | 345.0 | 2.05 | 0.421 | 0.1421 |
| 0.1 | 15.0 | 2.72 | 0.548 | 0.4639 |
| 0.1 | 45.0 | 3.4 | 0.574 | 0.2709 |
| 0.1 | 75.0 | 3.11 | 1.04 | 1.2312 |
| 0.1 | 105.0 | 5.8 | 1.09 | 0.4385 |
| 0.1 | 135.0 | 4.48 | 1.12 | 0.4791 |
| 0.1 | 165.0 | 5.23 | 3.52 | 6.463 |
| 0.1 | 195.0 | 0.683 | 0.738 | 0.6474 |
| 0.1 | 225.0 | 2.86 | 0.745 | 0.5743 |
| 0.1 | 255.0 | 5.39 | 1.14 | 0.7582 |
| 0.1 | 285.0 | 3.57 | 1.2 | 0.5836 |
| 0.1 | 315.0 | 3.65 | 0.656 | 0.4112 |
| 0.1 | 345.0 | 2.39 | 0.492 | 0.3607 |
| 0.3 | 15.0 | 2.47 | 0.456 | 0.1993 |
| 0.3 | 45.0 | 2.61 | 0.514 | 0.0875 |
| 0.3 | 75.0 | 3.25 | 0.992 | 2.4301 |
| 0.3 | 105.0 | 3.93 | 0.75 | 0.2372 |
| 0.3 | 135.0 | 4.61 | 0.983 | 0.8659 |
| 0.3 | 165.0 | 7.96 | 4.56 | 4.684 |
| 0.3 | 195.0 | 0.97 | 1.06 | 1.0074 |
| 0.3 | 225.0 | 2.5 | 0.592 | 0.2916 |
| 0.3 | 255.0 | 3.07 | 0.681 | 0.653 |
| 0.3 | 285.0 | 5.57 | 1.67 | 1.1563 |
| 0.3 | 315.0 | 3.77 | 0.666 | 0.1209 |
| 0.3 | 345.0 | 1.69 | 0.404 | 0.3154 |
| 0.5 | 15.0 | 2.35 | 0.452 | 0.4305 |
| 0.5 | 45.0 | 1.41 | 0.367 | 0.2138 |
| 0.5 | 75.0 | 2.26 | 0.687 | 0.3649 |
| 0.5 | 105.0 | 3.52 | 0.741 | 0.3908 |
| 0.5 | 135.0 | 2.01 | 0.526 | 0.44 |
| 0.5 | 165.0 | 4.68 | 3.32 | 1.5646 |
| 0.5 | 195.0 | 1.34 | 1.08 | 1.8704 |
| 0.5 | 225.0 | 2.58 | 0.737 | 0.3562 |
| 0.5 | 255.0 | 3.11 | 0.847 | 0.4505 |
| 0.5 | 285.0 | 2.01 | 0.723 | 0.4474 |
| 0.5 | 315.0 | 2.05 | 0.432 | 0.1374 |
| 0.5 | 345.0 | 2.39 | 0.516 | 0.3297 |
| 0.7 | 15.0 | 1.15 | 0.3 | 0.0634 |
| 0.7 | 45.0 | 1.52 | 0.438 | 0.1961 |
| 0.7 | 75.0 | 1.7 | 0.652 | 0.3012 |
| 0.7 | 105.0 | 3.28 | 1.08 | 1.0919 |
| 0.7 | 135.0 | 1.56 | 0.425 | 0.7935 |
| 0.7 | 165.0 | 1.17 | 0.773 | 0.4867 |
| 0.7 | 195.0 | 2.91 | 2.23 | 1.9078 |
| 0.7 | 225.0 | 4.01 | 1.52 | 0.9506 |
| 0.7 | 255.0 | 2.92 | 0.848 | 0.5872 |
| 0.7 | 285.0 | 4.28 | 1.64 | 1.1184 |
| 0.7 | 315.0 | 2.58 | 0.652 | 0.1214 |
| 0.7 | 345.0 | 1.88 | 0.458 | 0.1239 |
| 0.9 | 15.0 | 1.49 | 0.452 | 0.1577 |
| 0.9 | 45.0 | 0.726 | 0.289 | 0.0931 |
| 0.9 | 75.0 | 0.785 | 0.329 | 0.3964 |
| 0.9 | 105.0 | 0.478 | 0.308 | 0.316 |
| 0.9 | 135.0 | 3.71 | 2.16 | 2.1057 |
| 0.9 | 165.0 | 0.677 | 0.326 | 0.4753 |
| 0.9 | 195.0 | 4.05 | 2.21 | 1.4851 |
| 0.9 | 225.0 | 1.06 | 0.722 | 0.7237 |
| 0.9 | 255.0 | 1.48 | 0.658 | 0.4348 |
| 0.9 | 285.0 | 0.878 | 0.42 | 0.3434 |
| 0.9 | 315.0 | 1.65 | 0.465 | 0.2386 |
| 0.9 | 345.0 | 0.724 | 0.281 | 0.2134 |
Experiment comment: