Measurement E9M109
| 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: | 1.12 GeV | |
| ε: | 0.776 | |
| 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 | 0.0904 | 0.0979 | 0.1986 |
| -0.9 | 75.0 | 0.382 | 0.426 | 0.0305 |
| -0.9 | 105.0 | 0.943 | 0.752 | 0.3726 |
| -0.9 | 135.0 | 0.547 | 0.583 | 0.2417 |
| -0.9 | 165.0 | 0.289 | 0.303 | 0.1336 |
| -0.9 | 195.0 | 2.92 | 1.61 | 1.2936 |
| -0.9 | 225.0 | 2.52 | 1.55 | 1.3363 |
| -0.9 | 255.0 | 1.09 | 0.768 | 0.8631 |
| -0.9 | 285.0 | 1.19 | 0.857 | 0.556 |
| -0.9 | 315.0 | 2.22 | 1.56 | 0.9006 |
| -0.9 | 345.0 | 7.34 | 8.6 | 4.3613 |
| -0.7 | 15.0 | 0.309 | 0.327 | 0.1478 |
| -0.7 | 45.0 | 0.932 | 0.554 | 1.7747 |
| -0.7 | 75.0 | 4.93 | 2.53 | 1.66 |
| -0.7 | 105.0 | 0.8 | 0.641 | 1.2087 |
| -0.7 | 135.0 | 6.97 | 3.27 | 2.5163 |
| -0.7 | 165.0 | 2.25 | 0.91 | 0.6526 |
| -0.7 | 195.0 | 2.2 | 0.888 | 1.7981 |
| -0.7 | 225.0 | 1.26 | 0.794 | 1.5614 |
| -0.7 | 255.0 | 0.905 | 0.472 | 0.9831 |
| -0.7 | 285.0 | 0.326 | 0.253 | 0.7491 |
| -0.7 | 315.0 | 0.918 | 0.441 | 0.5255 |
| -0.7 | 345.0 | 0.753 | 0.494 | 0.1475 |
| -0.5 | 15.0 | 1.45 | 0.743 | 0.1556 |
| -0.5 | 45.0 | 1.21 | 0.738 | 0.4393 |
| -0.5 | 75.0 | 1.53 | 0.802 | 0.3192 |
| -0.5 | 105.0 | 1.66 | 1.05 | 0.2388 |
| -0.5 | 135.0 | 2.43 | 1.13 | 0.2416 |
| -0.5 | 165.0 | 1.88 | 0.854 | 0.8365 |
| -0.5 | 195.0 | 8.74 | 3.35 | 2.8027 |
| -0.5 | 225.0 | 1.25 | 0.779 | 0.336 |
| -0.5 | 255.0 | 0.957 | 0.409 | 1.6496 |
| -0.5 | 285.0 | 1.71 | 0.927 | 0.2298 |
| -0.5 | 315.0 | 0.463 | 0.489 | 0.9596 |
| -0.5 | 345.0 | 0.824 | 0.482 | 0.6263 |
| -0.3 | 15.0 | 4.01 | 2.35 | 1.4944 |
| -0.3 | 45.0 | 0.626 | 0.32 | 0.3256 |
| -0.3 | 75.0 | 2.06 | 0.952 | 0.2159 |
| -0.3 | 105.0 | 1.32 | 0.817 | 0.1966 |
| -0.3 | 135.0 | 1.67 | 0.768 | 0.6097 |
| -0.3 | 165.0 | 0.911 | 0.554 | 0.2327 |
| -0.3 | 195.0 | 5.21 | 1.93 | 0.9141 |
| -0.3 | 225.0 | 2.09 | 0.895 | 0.49 |
| -0.3 | 255.0 | 1.48 | 0.692 | 0.4057 |
| -0.3 | 285.0 | 1.31 | 0.821 | 0.1239 |
| -0.3 | 315.0 | 1.09 | 0.447 | 1.5991 |
| -0.3 | 345.0 | 3.32 | 1.89 | 0.8752 |
| -0.1 | 15.0 | 3.53 | 1.74 | 0.2829 |
| -0.1 | 45.0 | 0.381 | 0.287 | 0.0671 |
| -0.1 | 75.0 | 1.6 | 0.713 | 0.71 |
| -0.1 | 105.0 | 0.608 | 0.625 | 0.1655 |
| -0.1 | 135.0 | 1.95 | 1.08 | 0.5071 |
| -0.1 | 165.0 | 4.05 | 1.46 | 0.55 |
| -0.1 | 195.0 | 5.4 | 2.06 | 0.7426 |
| -0.1 | 225.0 | 6.38 | 2.52 | 2.0482 |
| -0.1 | 255.0 | 4.44 | 1.85 | 1.5187 |
| -0.1 | 285.0 | 1.37 | 0.689 | 0.7884 |
| -0.1 | 315.0 | 6.13 | 3.02 | 1.886 |
| -0.1 | 345.0 | 1.75 | 1.03 | 0.8763 |
| 0.1 | 15.0 | 1.37 | 0.658 | 0.2358 |
| 0.1 | 45.0 | 1.2 | 0.519 | 2.5865 |
| 0.1 | 75.0 | 1.91 | 1.07 | 0.2746 |
| 0.1 | 105.0 | 1.23 | 0.522 | 0.3978 |
| 0.1 | 135.0 | 2.6 | 0.991 | 0.2189 |
| 0.1 | 165.0 | 1.49 | 0.666 | 0.5789 |
| 0.1 | 195.0 | 2.1 | 0.83 | 0.3306 |
| 0.1 | 225.0 | 2.41 | 0.969 | 0.8285 |
| 0.1 | 255.0 | 5.23 | 1.79 | 0.4514 |
| 0.1 | 285.0 | 3.21 | 1.57 | 2.3892 |
| 0.1 | 315.0 | 1.55 | 0.907 | 0.2975 |
| 0.1 | 345.0 | 0.849 | 0.436 | 0.235 |
| 0.3 | 15.0 | 0.461 | 0.357 | 0.8664 |
| 0.3 | 45.0 | 1.23 | 0.683 | 0.1481 |
| 0.3 | 75.0 | 0.648 | 0.397 | 0.1725 |
| 0.3 | 105.0 | 3.47 | 1.63 | 0.8729 |
| 0.3 | 135.0 | 2.49 | 1.24 | 0.392 |
| 0.3 | 165.0 | 4.77 | 1.56 | 0.6201 |
| 0.3 | 195.0 | 2.31 | 0.853 | 0.4209 |
| 0.3 | 225.0 | 2.26 | 1.02 | 1.1121 |
| 0.3 | 255.0 | 0.854 | 0.519 | 0.2173 |
| 0.3 | 285.0 | 1.14 | 0.617 | 0.1409 |
| 0.3 | 315.0 | 1.4 | 0.803 | 0.318 |
| 0.3 | 345.0 | 1.38 | 0.551 | 0.3871 |
| 0.5 | 15.0 | 2.6 | 1.12 | 0.6404 |
| 0.5 | 45.0 | 2.34 | 1.11 | 0.3398 |
| 0.5 | 75.0 | 0.876 | 0.539 | 0.337 |
| 0.5 | 105.0 | 4.85 | 1.79 | 0.6291 |
| 0.5 | 135.0 | 0.576 | 0.419 | 0.2649 |
| 0.5 | 165.0 | 2.05 | 0.905 | 0.2393 |
| 0.5 | 195.0 | 2.82 | 0.97 | 1.4834 |
| 0.5 | 225.0 | 0.758 | 0.556 | 0.1766 |
| 0.5 | 255.0 | 3.53 | 1.28 | 0.2268 |
| 0.5 | 285.0 | 2.01 | 0.87 | 1.5047 |
| 0.5 | 315.0 | 1.26 | 0.874 | 0.758 |
| 0.5 | 345.0 | 2.1 | 1.09 | 0.4138 |
| 0.7 | 15.0 | 2.38 | 1.06 | 1.6086 |
| 0.7 | 45.0 | 0.72 | 0.39 | 0.3354 |
| 0.7 | 75.0 | 4.94 | 1.94 | 2.3827 |
| 0.7 | 105.0 | 2.06 | 0.937 | 0.3062 |
| 0.7 | 135.0 | 4.88 | 2.35 | 1.65 |
| 0.7 | 165.0 | 4.6 | 1.62 | 1.9624 |
| 0.7 | 195.0 | 9.22 | 3.34 | 3.517 |
| 0.7 | 225.0 | 2.94 | 1.26 | 1.4815 |
| 0.7 | 255.0 | 1.53 | 0.824 | 0.0862 |
| 0.7 | 285.0 | 5.36 | 2.1 | 1.9091 |
| 0.7 | 315.0 | 1.3 | 0.565 | 0.5966 |
| 0.7 | 345.0 | 0.382 | 0.398 | 0.1992 |
| 0.9 | 15.0 | 0.626 | 0.474 | 0.9093 |
| 0.9 | 45.0 | 12.3 | 6.17 | 4.4355 |
| 0.9 | 75.0 | 3.88 | 2.16 | 0.478 |
| 0.9 | 105.0 | 7.06 | 2.68 | 1.562 |
| 0.9 | 135.0 | 7.25 | 3.5 | 1.7436 |
| 0.9 | 165.0 | 5.88 | 2.48 | 2.1932 |
| 0.9 | 195.0 | 6.76 | 2.95 | 1.8929 |
| 0.9 | 225.0 | 1.93 | 0.886 | 0.5335 |
| 0.9 | 255.0 | 2.21 | 0.996 | 1.1872 |
| 0.9 | 285.0 | 3.88 | 1.57 | 1.4414 |
| 0.9 | 315.0 | 2.29 | 1.49 | 0.4135 |
| 0.9 | 345.0 | 1.26 | 0.708 | 0.423 |
Experiment comment: