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Measurement E9M1
| 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: | 1.1 GeV | |
| ε: | 0.877 | |
| 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 | 0.912 | 0.748 | 0.6368 |
| -0.9 | 45.0 | 0.175 | 0.137 | 0.3287 |
| -0.9 | 75.0 | 1.65 | 1.23 | 2.4818 |
| -0.9 | 105.0 | 0.56 | 0.38 | 0.9026 |
| -0.9 | 135.0 | 1.13 | 0.801 | 0.4312 |
| -0.9 | 165.0 | 0.744 | 0.478 | 1.1645 |
| -0.9 | 195.0 | 0.281 | 0.296 | 0.2205 |
| -0.9 | 225.0 | 1.75 | 0.833 | 1.8899 |
| -0.9 | 255.0 | 1.04 | 0.881 | 0.8025 |
| -0.9 | 285.0 | 0.834 | 0.783 | 0.2761 |
| -0.9 | 315.0 | 0.777 | 0.51 | 0.9002 |
| -0.9 | 345.0 | 0.806 | 0.887 | 0.4468 |
| -0.7 | 15.0 | 0.287 | 0.155 | 0.7734 |
| -0.7 | 45.0 | 0.756 | 0.593 | 0.3382 |
| -0.7 | 75.0 | 2.34 | 1.55 | 0.9909 |
| -0.7 | 105.0 | 1.28 | 0.679 | 0.1796 |
| -0.7 | 135.0 | 3.09 | 1.47 | 1.0298 |
| -0.7 | 165.0 | 1.11 | 0.521 | 0.1459 |
| -0.7 | 195.0 | 1.19 | 0.684 | 0.0541 |
| -0.7 | 225.0 | 3.03 | 1.2 | 1.5266 |
| -0.7 | 255.0 | 1.25 | 0.808 | 0.5324 |
| -0.7 | 285.0 | 1.14 | 0.94 | 2.0296 |
| -0.7 | 315.0 | 0.324 | 0.282 | 1.8813 |
| -0.7 | 345.0 | 0.0792 | 0.0551 | 0.2689 |
| -0.5 | 15.0 | 0.571 | 0.356 | 0.753 |
| -0.5 | 45.0 | 1.32 | 0.812 | 0.56 |
| -0.5 | 75.0 | 0.462 | 0.264 | 0.4323 |
| -0.5 | 105.0 | 0.881 | 0.556 | 0.4066 |
| -0.5 | 135.0 | 1.6 | 0.973 | 0.6711 |
| -0.5 | 165.0 | 2.26 | 0.912 | 0.316 |
| -0.5 | 195.0 | 2.33 | 0.869 | 0.2911 |
| -0.5 | 225.0 | 0.742 | 0.414 | 0.2252 |
| -0.5 | 255.0 | 0.355 | 0.377 | 0.2864 |
| -0.5 | 285.0 | 2.29 | 1.23 | 0.9825 |
| -0.5 | 315.0 | 0.212 | 0.171 | 0.2469 |
| -0.5 | 345.0 | 1.34 | 1.52 | 0.6566 |
| -0.3 | 15.0 | 0.91 | 0.552 | 0.4313 |
| -0.3 | 45.0 | 2.22 | 1.84 | 0.9839 |
| -0.3 | 75.0 | 1.45 | 0.932 | 0.4454 |
| -0.3 | 105.0 | 8.13 | 3.67 | 2.5965 |
| -0.3 | 135.0 | 0.629 | 0.28 | 0.521 |
| -0.3 | 165.0 | 6.29 | 2.38 | 2.6355 |
| -0.3 | 195.0 | 1.68 | 0.705 | 0.2641 |
| -0.3 | 225.0 | 1.93 | 0.919 | 1.3013 |
| -0.3 | 255.0 | 2.4 | 1.19 | 0.3294 |
| -0.3 | 285.0 | 0.276 | 0.212 | 0.3987 |
| -0.3 | 315.0 | 0.855 | 0.999 | 0.8863 |
| -0.3 | 345.0 | 0.439 | 0.309 | 0.5658 |
| -0.1 | 15.0 | 0.983 | 0.502 | 0.1884 |
| -0.1 | 45.0 | 3.71 | 2.77 | 1.5463 |
| -0.1 | 75.0 | 4.71 | 3.09 | 1.8925 |
| -0.1 | 105.0 | 3.05 | 1.5 | 0.7362 |
| -0.1 | 135.0 | 1.53 | 0.657 | 0.1965 |
| -0.1 | 165.0 | 2.61 | 1.08 | 0.6082 |
| -0.1 | 195.0 | 1.35 | 0.541 | 0.2778 |
| -0.1 | 225.0 | 3.92 | 1.5 | 0.9911 |
| -0.1 | 255.0 | 2.27 | 1.11 | 0.6992 |
| -0.1 | 285.0 | 1.14 | 0.599 | 0.3422 |
| -0.1 | 315.0 | 0.2 | 0.152 | 0.1308 |
| -0.1 | 345.0 | 1.39 | 1.04 | 1.0365 |
| 0.1 | 15.0 | 2.88 | 1.6 | 1.066 |
| 0.1 | 45.0 | 0.356 | 0.27 | 0.0991 |
| 0.1 | 75.0 | 1.44 | 0.78 | 0.1774 |
| 0.1 | 105.0 | 1.44 | 0.545 | 0.5576 |
| 0.1 | 135.0 | 11.2 | 3.75 | 1.3471 |
| 0.1 | 165.0 | 2.58 | 0.85 | 0.2799 |
| 0.1 | 195.0 | 2.71 | 1.0 | 0.5359 |
| 0.1 | 225.0 | 3.37 | 1.46 | 0.4079 |
| 0.1 | 255.0 | 0.884 | 0.437 | 0.7626 |
| 0.1 | 285.0 | 1.38 | 0.571 | 1.1559 |
| 0.1 | 315.0 | 0.375 | 0.218 | 0.4432 |
| 0.1 | 345.0 | 0.755 | 0.5 | 0.3696 |
| 0.3 | 15.0 | 0.724 | 0.382 | 0.2435 |
| 0.3 | 45.0 | 2.06 | 1.07 | 0.533 |
| 0.3 | 75.0 | 2.57 | 1.31 | 0.3774 |
| 0.3 | 105.0 | 1.77 | 0.791 | 0.5156 |
| 0.3 | 135.0 | 2.1 | 0.663 | 0.8948 |
| 0.3 | 165.0 | 2.33 | 0.841 | 0.1877 |
| 0.3 | 195.0 | 5.26 | 2.0 | 1.6195 |
| 0.3 | 225.0 | 4.05 | 1.48 | 0.9336 |
| 0.3 | 255.0 | 1.15 | 0.502 | 0.6789 |
| 0.3 | 285.0 | 1.47 | 0.655 | 0.6394 |
| 0.3 | 315.0 | 1.69 | 0.964 | 0.7294 |
| 0.3 | 345.0 | 1.28 | 0.647 | 0.9834 |
| 0.5 | 15.0 | 2.37 | 1.27 | 0.7463 |
| 0.5 | 45.0 | 2.09 | 0.94 | 0.7147 |
| 0.5 | 75.0 | 8.24 | 3.78 | 3.3571 |
| 0.5 | 105.0 | 6.23 | 2.55 | 1.6469 |
| 0.5 | 135.0 | 5.34 | 1.79 | 1.0239 |
| 0.5 | 165.0 | 1.05 | 0.415 | 0.7346 |
| 0.5 | 195.0 | 2.03 | 0.748 | 0.2315 |
| 0.5 | 225.0 | 1.25 | 0.613 | 0.6538 |
| 0.5 | 255.0 | 3.8 | 1.43 | 1.5557 |
| 0.5 | 285.0 | 1.22 | 0.473 | 0.5901 |
| 0.5 | 315.0 | 1.12 | 0.483 | 1.8258 |
| 0.5 | 345.0 | 0.894 | 0.45 | 0.6123 |
| 0.7 | 15.0 | 1.76 | 1.02 | 0.1431 |
| 0.7 | 45.0 | 0.192 | 0.144 | 0.7492 |
| 0.7 | 75.0 | 1.41 | 0.546 | 0.9547 |
| 0.7 | 105.0 | 5.58 | 2.63 | 1.8332 |
| 0.7 | 135.0 | 1.2 | 0.654 | 1.1248 |
| 0.7 | 165.0 | 3.17 | 1.13 | 0.5237 |
| 0.7 | 195.0 | 1.82 | 0.736 | 0.6078 |
| 0.7 | 225.0 | 4.64 | 1.77 | 1.1163 |
| 0.7 | 255.0 | 6.73 | 3.6 | 2.6921 |
| 0.7 | 285.0 | 3.64 | 1.55 | 1.0229 |
| 0.7 | 315.0 | 1.1 | 0.474 | 0.4663 |
| 0.7 | 345.0 | 1.07 | 0.483 | 0.1151 |
| 0.9 | 15.0 | 2.7 | 1.56 | 0.6265 |
| 0.9 | 45.0 | 2.22 | 1.05 | 0.8658 |
| 0.9 | 75.0 | 1.86 | 1.0 | 1.1923 |
| 0.9 | 105.0 | 1.64 | 0.724 | 0.5739 |
| 0.9 | 135.0 | 2.57 | 1.05 | 0.4514 |
| 0.9 | 165.0 | 1.94 | 0.778 | 0.729 |
| 0.9 | 195.0 | 3.87 | 1.37 | 0.7838 |
| 0.9 | 225.0 | 1.46 | 0.578 | 1.3879 |
| 0.9 | 255.0 | 3.84 | 1.57 | 1.5173 |
| 0.9 | 285.0 | 1.07 | 0.502 | 1.8237 |
| 0.9 | 315.0 | 1.53 | 0.94 | 0.396 |
| 0.9 | 345.0 | 4.82 | 2.46 | 1.4898 |
Experiment comment: