Measurement E9M142
| 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: | 1.32 GeV | |
| ε: | 0.598 | |
| 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 | 0.776 | 0.501 | 0.2806 |
| -0.9 | 45.0 | 2.47 | 1.22 | 0.698 |
| -0.9 | 75.0 | 1.51 | 0.7 | 0.2765 |
| -0.9 | 105.0 | 0.497 | 0.367 | 0.4592 |
| -0.9 | 135.0 | 1.58 | 0.812 | 0.5489 |
| -0.9 | 165.0 | 1.29 | 0.604 | 0.439 |
| -0.9 | 195.0 | 1.45 | 0.712 | 0.6531 |
| -0.9 | 225.0 | 5.25 | 2.58 | 0.851 |
| -0.9 | 255.0 | 2.63 | 1.41 | 0.428 |
| -0.9 | 285.0 | 1.2 | 0.572 | 0.2065 |
| -0.9 | 315.0 | 0.524 | 0.324 | 0.1631 |
| -0.9 | 345.0 | 0.527 | 0.396 | 0.1476 |
| -0.7 | 15.0 | 2.62 | 0.819 | 0.625 |
| -0.7 | 45.0 | 2.9 | 0.982 | 0.4655 |
| -0.7 | 75.0 | 3.9 | 1.49 | 1.315 |
| -0.7 | 105.0 | 1.84 | 0.82 | 0.3668 |
| -0.7 | 135.0 | 1.53 | 0.656 | 0.6403 |
| -0.7 | 165.0 | 1.46 | 0.743 | 0.4362 |
| -0.7 | 195.0 | 2.88 | 1.19 | 0.5805 |
| -0.7 | 225.0 | 1.83 | 0.8 | 0.5598 |
| -0.7 | 255.0 | 2.66 | 0.966 | 0.6459 |
| -0.7 | 285.0 | 4.76 | 1.59 | 1.1325 |
| -0.7 | 315.0 | 3.43 | 0.941 | 0.2331 |
| -0.7 | 345.0 | 2.58 | 0.893 | 0.532 |
| -0.5 | 15.0 | 3.0 | 0.809 | 0.1641 |
| -0.5 | 45.0 | 3.18 | 0.984 | 0.1521 |
| -0.5 | 75.0 | 5.03 | 1.46 | 0.9048 |
| -0.5 | 105.0 | 4.04 | 1.24 | 2.2644 |
| -0.5 | 135.0 | 1.4 | 0.862 | 0.4612 |
| -0.5 | 165.0 | 1.95 | 0.803 | 0.5335 |
| -0.5 | 195.0 | 2.94 | 1.09 | 2.736 |
| -0.5 | 225.0 | 3.61 | 1.87 | 1.419 |
| -0.5 | 255.0 | 1.68 | 0.61 | 1.3139 |
| -0.5 | 285.0 | 3.31 | 1.1 | 0.2952 |
| -0.5 | 315.0 | 2.3 | 0.836 | 0.1324 |
| -0.5 | 345.0 | 2.98 | 0.813 | 0.8778 |
| -0.3 | 15.0 | 2.04 | 0.564 | 0.0918 |
| -0.3 | 45.0 | 2.99 | 0.858 | 0.2405 |
| -0.3 | 75.0 | 4.57 | 1.04 | 0.5568 |
| -0.3 | 105.0 | 5.29 | 1.41 | 1.4006 |
| -0.3 | 135.0 | 3.54 | 1.56 | 3.4977 |
| -0.3 | 165.0 | 2.76 | 1.81 | 2.5244 |
| -0.3 | 195.0 | 3.09 | 1.58 | 1.4259 |
| -0.3 | 225.0 | 4.92 | 2.24 | 0.9377 |
| -0.3 | 255.0 | 5.77 | 1.63 | 0.5324 |
| -0.3 | 285.0 | 5.26 | 1.37 | 0.9213 |
| -0.3 | 315.0 | 2.69 | 0.74 | 0.6637 |
| -0.3 | 345.0 | 2.58 | 0.842 | 0.297 |
| -0.1 | 15.0 | 3.53 | 1.04 | 0.2312 |
| -0.1 | 45.0 | 3.44 | 0.864 | 0.9722 |
| -0.1 | 75.0 | 3.06 | 0.93 | 0.3517 |
| -0.1 | 105.0 | 7.91 | 2.08 | 0.5006 |
| -0.1 | 135.0 | 7.4 | 2.43 | 1.0693 |
| -0.1 | 165.0 | 2.83 | 3.12 | 1.5911 |
| -0.1 | 195.0 | 3.9 | 3.2 | 2.4822 |
| -0.1 | 225.0 | 1.68 | 0.81 | 0.5047 |
| -0.1 | 255.0 | 4.65 | 1.39 | 0.5747 |
| -0.1 | 285.0 | 8.25 | 1.83 | 1.4498 |
| -0.1 | 315.0 | 3.28 | 0.888 | 0.3707 |
| -0.1 | 345.0 | 3.04 | 0.84 | 0.0919 |
| 0.1 | 15.0 | 2.35 | 0.693 | 0.02 |
| 0.1 | 45.0 | 2.62 | 0.794 | 0.4095 |
| 0.1 | 75.0 | 4.76 | 1.18 | 0.3092 |
| 0.1 | 105.0 | 4.37 | 1.19 | 0.9796 |
| 0.1 | 135.0 | 2.16 | 0.649 | 1.2555 |
| 0.1 | 165.0 | 2.01 | 2.18 | 1.184 |
| 0.1 | 195.0 | 8.63 | 7.91 | 6.8967 |
| 0.1 | 225.0 | 3.19 | 1.27 | 0.7671 |
| 0.1 | 255.0 | 2.49 | 0.761 | 1.0149 |
| 0.1 | 285.0 | 4.28 | 1.03 | 1.9068 |
| 0.1 | 315.0 | 4.01 | 1.15 | 0.4618 |
| 0.1 | 345.0 | 5.9 | 1.52 | 0.9601 |
| 0.3 | 15.0 | 2.89 | 0.862 | 0.4193 |
| 0.3 | 45.0 | 2.81 | 0.727 | 0.8251 |
| 0.3 | 75.0 | 7.0 | 1.79 | 0.509 |
| 0.3 | 105.0 | 2.47 | 0.898 | 0.1231 |
| 0.3 | 135.0 | 3.67 | 1.18 | 0.686 |
| 0.3 | 165.0 | 17.6 | 15.3 | 8.8326 |
| 0.3 | 195.0 | 1.65 | 1.82 | 0.4507 |
| 0.3 | 225.0 | 6.16 | 1.87 | 3.4872 |
| 0.3 | 255.0 | 2.85 | 0.829 | 1.1238 |
| 0.3 | 285.0 | 4.57 | 1.24 | 0.1938 |
| 0.3 | 315.0 | 2.2 | 0.695 | 0.1619 |
| 0.3 | 345.0 | 3.66 | 0.984 | 0.6502 |
| 0.5 | 15.0 | 5.3 | 1.46 | 0.7219 |
| 0.5 | 45.0 | 3.82 | 1.16 | 0.7375 |
| 0.5 | 75.0 | 3.76 | 1.19 | 0.5991 |
| 0.5 | 105.0 | 7.91 | 2.24 | 1.1923 |
| 0.5 | 135.0 | 5.17 | 1.75 | 1.9156 |
| 0.5 | 165.0 | 5.58 | 4.13 | 2.6726 |
| 0.5 | 195.0 | 16.6 | 20.4 | 11.8042 |
| 0.5 | 225.0 | 3.51 | 1.18 | 1.166 |
| 0.5 | 255.0 | 11.9 | 3.82 | 4.2105 |
| 0.5 | 285.0 | 3.55 | 0.946 | 0.5196 |
| 0.5 | 315.0 | 6.12 | 1.52 | 0.5237 |
| 0.5 | 345.0 | 2.03 | 0.57 | 0.2395 |
| 0.7 | 15.0 | 1.02 | 0.379 | 0.2105 |
| 0.7 | 45.0 | 2.0 | 0.621 | 0.3687 |
| 0.7 | 75.0 | 2.36 | 0.918 | 0.4522 |
| 0.7 | 105.0 | 1.82 | 0.765 | 0.3778 |
| 0.7 | 135.0 | 3.9 | 1.37 | 1.3785 |
| 0.7 | 165.0 | 0.445 | 0.465 | 1.1533 |
| 0.7 | 195.0 | 28.8 | 25.2 | 16.5009 |
| 0.7 | 225.0 | 2.1 | 0.759 | 2.4258 |
| 0.7 | 255.0 | 2.03 | 0.711 | 0.6537 |
| 0.7 | 285.0 | 2.22 | 0.689 | 0.7016 |
| 0.7 | 315.0 | 1.74 | 0.558 | 0.0644 |
| 0.7 | 345.0 | 3.28 | 1.07 | 0.5949 |
| 0.9 | 15.0 | 1.36 | 0.656 | 0.4487 |
| 0.9 | 45.0 | 1.48 | 0.574 | 0.2349 |
| 0.9 | 75.0 | 4.81 | 2.97 | 1.6945 |
| 0.9 | 105.0 | 2.31 | 1.03 | 0.6787 |
| 0.9 | 135.0 | 10.1 | 5.42 | 4.3371 |
| 0.9 | 165.0 | 0.328 | 0.344 | 0.1652 |
| 0.9 | 195.0 | 1.19 | 0.829 | 0.8943 |
| 0.9 | 225.0 | 0.597 | 0.393 | 1.6017 |
| 0.9 | 255.0 | 1.08 | 0.517 | 0.1338 |
| 0.9 | 285.0 | 0.572 | 0.356 | 0.1387 |
| 0.9 | 315.0 | 0.598 | 0.294 | 0.7699 |
| 0.9 | 345.0 | 1.55 | 0.787 | 0.5006 |
Experiment comment: