Measurement E9M139
| 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: | 0.7 — 0.8 GeV2 | |
| W: | 1.26 GeV | |
| ε: | 0.647 | |
| 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 | 4.76 | 1.14 | 0.3289 |
| -0.9 | 45.0 | 5.54 | 1.55 | 0.6132 |
| -0.9 | 75.0 | 5.1 | 1.4 | 0.9446 |
| -0.9 | 105.0 | 5.11 | 1.6 | 1.319 |
| -0.9 | 135.0 | 4.81 | 1.99 | 1.6149 |
| -0.9 | 165.0 | 3.74 | 1.21 | 0.3082 |
| -0.9 | 195.0 | 2.25 | 0.734 | 0.3488 |
| -0.9 | 225.0 | 3.47 | 1.01 | 0.1676 |
| -0.9 | 255.0 | 4.89 | 1.62 | 0.7613 |
| -0.9 | 285.0 | 2.43 | 0.886 | 0.3341 |
| -0.9 | 315.0 | 2.16 | 0.714 | 0.5925 |
| -0.9 | 345.0 | 2.83 | 0.861 | 0.7407 |
| -0.7 | 15.0 | 5.26 | 1.13 | 0.6585 |
| -0.7 | 45.0 | 6.8 | 1.53 | 0.5794 |
| -0.7 | 75.0 | 5.37 | 1.61 | 0.8191 |
| -0.7 | 105.0 | 7.68 | 2.1 | 1.9205 |
| -0.7 | 135.0 | 4.48 | 1.37 | 1.1558 |
| -0.7 | 165.0 | 4.68 | 1.55 | 1.2019 |
| -0.7 | 195.0 | 6.4 | 1.75 | 0.6132 |
| -0.7 | 225.0 | 6.75 | 1.74 | 0.8359 |
| -0.7 | 255.0 | 5.32 | 1.49 | 1.3367 |
| -0.7 | 285.0 | 3.91 | 1.09 | 0.7452 |
| -0.7 | 315.0 | 5.51 | 1.19 | 2.7781 |
| -0.7 | 345.0 | 4.55 | 1.04 | 0.4492 |
| -0.5 | 15.0 | 8.09 | 1.79 | 1.5044 |
| -0.5 | 45.0 | 5.65 | 1.39 | 0.2194 |
| -0.5 | 75.0 | 10.3 | 2.24 | 1.346 |
| -0.5 | 105.0 | 7.71 | 1.89 | 1.1701 |
| -0.5 | 135.0 | 5.78 | 1.69 | 0.4317 |
| -0.5 | 165.0 | 4.99 | 1.44 | 0.4882 |
| -0.5 | 195.0 | 5.36 | 1.43 | 0.9159 |
| -0.5 | 225.0 | 5.7 | 1.5 | 1.5424 |
| -0.5 | 255.0 | 9.47 | 2.25 | 1.8802 |
| -0.5 | 285.0 | 11.8 | 2.47 | 0.6819 |
| -0.5 | 315.0 | 10.7 | 2.14 | 1.8272 |
| -0.5 | 345.0 | 6.63 | 1.35 | 0.9664 |
| -0.3 | 15.0 | 4.95 | 1.03 | 0.7138 |
| -0.3 | 45.0 | 9.5 | 1.95 | 1.2868 |
| -0.3 | 75.0 | 10.3 | 1.97 | 0.8478 |
| -0.3 | 105.0 | 10.1 | 2.1 | 1.5094 |
| -0.3 | 135.0 | 7.2 | 1.93 | 1.0396 |
| -0.3 | 165.0 | 4.44 | 1.17 | 0.9142 |
| -0.3 | 195.0 | 8.27 | 2.06 | 1.4659 |
| -0.3 | 225.0 | 8.68 | 2.4 | 1.9866 |
| -0.3 | 255.0 | 9.93 | 2.32 | 1.6067 |
| -0.3 | 285.0 | 22.8 | 4.07 | 3.0992 |
| -0.3 | 315.0 | 8.6 | 1.67 | 0.472 |
| -0.3 | 345.0 | 3.8 | 0.809 | 0.7094 |
| -0.1 | 15.0 | 6.89 | 1.23 | 0.167 |
| -0.1 | 45.0 | 6.77 | 1.35 | 0.2692 |
| -0.1 | 75.0 | 9.02 | 1.81 | 0.6751 |
| -0.1 | 105.0 | 6.97 | 1.69 | 0.564 |
| -0.1 | 135.0 | 7.88 | 1.78 | 2.2603 |
| -0.1 | 165.0 | 11.6 | 3.01 | 2.8035 |
| -0.1 | 195.0 | 6.75 | 1.9 | 1.3166 |
| -0.1 | 225.0 | 8.65 | 2.4 | 1.9155 |
| -0.1 | 255.0 | 7.6 | 1.59 | 1.291 |
| -0.1 | 285.0 | 8.75 | 2.02 | 1.1483 |
| -0.1 | 315.0 | 10.8 | 2.04 | 0.2739 |
| -0.1 | 345.0 | 5.73 | 1.14 | 0.2402 |
| 0.1 | 15.0 | 9.84 | 1.66 | 0.4541 |
| 0.1 | 45.0 | 7.73 | 1.63 | 0.4622 |
| 0.1 | 75.0 | 10.3 | 1.94 | 1.3605 |
| 0.1 | 105.0 | 13.4 | 2.64 | 0.7314 |
| 0.1 | 135.0 | 13.0 | 4.5 | 4.1379 |
| 0.1 | 165.0 | 6.81 | 1.86 | 0.9508 |
| 0.1 | 195.0 | 12.8 | 3.17 | 1.8484 |
| 0.1 | 225.0 | 9.68 | 2.92 | 0.9789 |
| 0.1 | 255.0 | 14.8 | 2.92 | 1.5716 |
| 0.1 | 285.0 | 11.3 | 2.38 | 1.6137 |
| 0.1 | 315.0 | 10.3 | 1.95 | 0.9394 |
| 0.1 | 345.0 | 9.01 | 1.53 | 0.2238 |
| 0.3 | 15.0 | 6.38 | 1.26 | 0.9677 |
| 0.3 | 45.0 | 7.13 | 1.56 | 0.6201 |
| 0.3 | 75.0 | 9.33 | 1.99 | 0.8191 |
| 0.3 | 105.0 | 14.2 | 2.95 | 1.9513 |
| 0.3 | 135.0 | 13.1 | 3.34 | 1.0536 |
| 0.3 | 165.0 | 6.72 | 2.0 | 1.6161 |
| 0.3 | 195.0 | 12.2 | 3.5 | 3.294 |
| 0.3 | 225.0 | 13.1 | 3.4 | 1.1314 |
| 0.3 | 255.0 | 12.5 | 2.51 | 1.5349 |
| 0.3 | 285.0 | 10.8 | 2.2 | 0.3775 |
| 0.3 | 315.0 | 8.41 | 1.74 | 0.8071 |
| 0.3 | 345.0 | 4.82 | 0.925 | 0.5838 |
| 0.5 | 15.0 | 4.52 | 1.04 | 1.025 |
| 0.5 | 45.0 | 4.97 | 1.18 | 0.3271 |
| 0.5 | 75.0 | 9.85 | 2.27 | 0.8833 |
| 0.5 | 105.0 | 5.91 | 1.36 | 3.3251 |
| 0.5 | 135.0 | 10.4 | 3.44 | 2.1151 |
| 0.5 | 165.0 | 10.2 | 2.84 | 0.6392 |
| 0.5 | 195.0 | 6.93 | 2.22 | 1.7368 |
| 0.5 | 225.0 | 12.3 | 3.61 | 1.1543 |
| 0.5 | 255.0 | 11.1 | 2.12 | 1.4646 |
| 0.5 | 285.0 | 7.98 | 1.73 | 0.5128 |
| 0.5 | 315.0 | 9.28 | 1.86 | 1.3268 |
| 0.5 | 345.0 | 8.02 | 1.66 | 1.2114 |
| 0.7 | 15.0 | 2.82 | 0.677 | 0.1479 |
| 0.7 | 45.0 | 6.0 | 1.19 | 2.0601 |
| 0.7 | 75.0 | 7.0 | 1.88 | 0.7112 |
| 0.7 | 105.0 | 5.7 | 1.73 | 0.9452 |
| 0.7 | 135.0 | 9.47 | 2.75 | 0.5051 |
| 0.7 | 165.0 | 3.62 | 1.35 | 1.4056 |
| 0.7 | 195.0 | 6.23 | 1.92 | 0.8206 |
| 0.7 | 225.0 | 4.14 | 1.7 | 1.2726 |
| 0.7 | 255.0 | 10.8 | 2.67 | 0.5196 |
| 0.7 | 285.0 | 6.12 | 1.52 | 1.084 |
| 0.7 | 315.0 | 3.54 | 0.874 | 0.5794 |
| 0.7 | 345.0 | 3.46 | 0.767 | 0.5147 |
| 0.9 | 15.0 | 3.96 | 1.04 | 0.3536 |
| 0.9 | 45.0 | 5.4 | 1.7 | 1.4896 |
| 0.9 | 75.0 | 3.12 | 1.01 | 1.9539 |
| 0.9 | 105.0 | 16.5 | 5.27 | 6.718 |
| 0.9 | 135.0 | 3.68 | 1.39 | 0.9259 |
| 0.9 | 165.0 | 3.16 | 1.03 | 1.6064 |
| 0.9 | 195.0 | 3.19 | 1.07 | 0.7413 |
| 0.9 | 225.0 | 3.26 | 1.0 | 0.5775 |
| 0.9 | 255.0 | 4.3 | 1.49 | 0.8589 |
| 0.9 | 285.0 | 4.47 | 1.42 | 1.3053 |
| 0.9 | 315.0 | 3.1 | 1.16 | 0.334 |
| 0.9 | 345.0 | 3.41 | 0.961 | 0.9539 |
Experiment comment: