Measurement E9M67
| 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: | 1.6 — 2.0 GeV2 | |
| W: | 1.24 GeV | |
| ε: | 0.57 | |
| 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 | 2.08 | 0.818 | 0.4462 |
| -0.9 | 45.0 | 0.624 | 0.265 | 0.3473 |
| -0.9 | 75.0 | 1.55 | 0.612 | 0.38 |
| -0.9 | 105.0 | 2.9 | 1.33 | 0.942 |
| -0.9 | 135.0 | 0.514 | 0.327 | 0.3755 |
| -0.9 | 165.0 | 1.03 | 0.498 | 0.1311 |
| -0.9 | 195.0 | 0.909 | 0.733 | 0.5043 |
| -0.9 | 225.0 | 1.0 | 0.563 | 0.328 |
| -0.9 | 255.0 | 1.41 | 0.593 | 0.1599 |
| -0.9 | 285.0 | 1.67 | 0.716 | 0.5659 |
| -0.9 | 315.0 | 0.839 | 0.363 | 0.1783 |
| -0.9 | 345.0 | 0.657 | 0.353 | 0.2011 |
| -0.7 | 15.0 | 2.25 | 0.747 | 0.4122 |
| -0.7 | 45.0 | 1.2 | 0.394 | 0.4793 |
| -0.7 | 75.0 | 2.62 | 0.805 | 0.3352 |
| -0.7 | 105.0 | 0.859 | 0.322 | 0.2679 |
| -0.7 | 135.0 | 2.92 | 1.04 | 0.9838 |
| -0.7 | 165.0 | 1.51 | 0.588 | 0.1233 |
| -0.7 | 195.0 | 0.466 | 0.227 | 0.1559 |
| -0.7 | 225.0 | 0.374 | 0.226 | 0.221 |
| -0.7 | 255.0 | 1.38 | 0.49 | 0.3474 |
| -0.7 | 285.0 | 0.664 | 0.242 | 0.2752 |
| -0.7 | 315.0 | 1.54 | 0.477 | 0.3922 |
| -0.7 | 345.0 | 0.922 | 0.392 | 0.1348 |
| -0.5 | 15.0 | 1.96 | 0.576 | 0.305 |
| -0.5 | 45.0 | 2.56 | 0.752 | 0.1329 |
| -0.5 | 75.0 | 2.19 | 0.687 | 0.2643 |
| -0.5 | 105.0 | 1.5 | 0.525 | 0.2225 |
| -0.5 | 135.0 | 1.5 | 0.494 | 0.5563 |
| -0.5 | 165.0 | 0.959 | 0.36 | 0.2061 |
| -0.5 | 195.0 | 0.991 | 0.459 | 0.1404 |
| -0.5 | 225.0 | 2.54 | 0.74 | 0.2331 |
| -0.5 | 255.0 | 1.42 | 0.452 | 0.4422 |
| -0.5 | 285.0 | 2.4 | 0.741 | 0.4385 |
| -0.5 | 315.0 | 2.47 | 0.808 | 0.4985 |
| -0.5 | 345.0 | 1.41 | 0.46 | 0.1921 |
| -0.3 | 15.0 | 1.6 | 0.445 | 0.135 |
| -0.3 | 45.0 | 2.42 | 0.657 | 0.1491 |
| -0.3 | 75.0 | 1.61 | 0.534 | 0.1933 |
| -0.3 | 105.0 | 3.88 | 1.18 | 0.3178 |
| -0.3 | 135.0 | 1.16 | 0.405 | 0.6563 |
| -0.3 | 165.0 | 2.16 | 0.754 | 0.4168 |
| -0.3 | 195.0 | 2.42 | 0.803 | 0.6034 |
| -0.3 | 225.0 | 2.03 | 0.625 | 0.3167 |
| -0.3 | 255.0 | 2.44 | 0.767 | 0.4316 |
| -0.3 | 285.0 | 1.75 | 0.507 | 0.2931 |
| -0.3 | 315.0 | 1.63 | 0.49 | 0.1566 |
| -0.3 | 345.0 | 3.45 | 0.858 | 0.2188 |
| -0.1 | 15.0 | 1.62 | 0.454 | 0.0502 |
| -0.1 | 45.0 | 3.51 | 0.915 | 0.4922 |
| -0.1 | 75.0 | 1.94 | 0.647 | 0.1704 |
| -0.1 | 105.0 | 2.3 | 0.758 | 0.172 |
| -0.1 | 135.0 | 2.64 | 0.879 | 0.279 |
| -0.1 | 165.0 | 1.99 | 0.668 | 0.4544 |
| -0.1 | 195.0 | 4.76 | 1.41 | 0.9705 |
| -0.1 | 225.0 | 1.6 | 0.521 | 0.6749 |
| -0.1 | 255.0 | 2.33 | 0.657 | 0.576 |
| -0.1 | 285.0 | 2.3 | 0.684 | 0.3292 |
| -0.1 | 315.0 | 1.74 | 0.485 | 0.2907 |
| -0.1 | 345.0 | 0.704 | 0.256 | 0.3805 |
| 0.1 | 15.0 | 2.07 | 0.653 | 0.2969 |
| 0.1 | 45.0 | 2.07 | 0.618 | 0.2691 |
| 0.1 | 75.0 | 3.92 | 1.02 | 0.4421 |
| 0.1 | 105.0 | 2.23 | 0.63 | 0.2657 |
| 0.1 | 135.0 | 3.49 | 1.1 | 0.5498 |
| 0.1 | 165.0 | 3.61 | 1.01 | 0.6078 |
| 0.1 | 195.0 | 0.414 | 0.217 | 0.0911 |
| 0.1 | 225.0 | 2.73 | 0.842 | 0.564 |
| 0.1 | 255.0 | 2.03 | 0.577 | 0.639 |
| 0.1 | 285.0 | 2.99 | 0.823 | 0.3761 |
| 0.1 | 315.0 | 1.06 | 0.384 | 0.2602 |
| 0.1 | 345.0 | 2.46 | 0.658 | 0.1173 |
| 0.3 | 15.0 | 5.09 | 1.44 | 1.0245 |
| 0.3 | 45.0 | 4.36 | 1.21 | 0.2567 |
| 0.3 | 75.0 | 3.08 | 0.911 | 0.1946 |
| 0.3 | 105.0 | 2.18 | 0.639 | 0.7597 |
| 0.3 | 135.0 | 3.12 | 0.901 | 0.6927 |
| 0.3 | 165.0 | 3.63 | 1.07 | 0.5721 |
| 0.3 | 195.0 | 1.13 | 0.381 | 0.1864 |
| 0.3 | 225.0 | 2.72 | 0.922 | 0.4778 |
| 0.3 | 255.0 | 4.03 | 1.06 | 0.2351 |
| 0.3 | 285.0 | 2.21 | 0.651 | 0.2208 |
| 0.3 | 315.0 | 1.88 | 0.543 | 0.4193 |
| 0.3 | 345.0 | 1.65 | 0.533 | 0.1254 |
| 0.5 | 15.0 | 1.98 | 0.647 | 0.4956 |
| 0.5 | 45.0 | 2.5 | 0.65 | 0.3696 |
| 0.5 | 75.0 | 3.45 | 1.07 | 0.5933 |
| 0.5 | 105.0 | 2.89 | 0.814 | 0.428 |
| 0.5 | 135.0 | 3.19 | 0.929 | 0.2487 |
| 0.5 | 165.0 | 3.18 | 1.14 | 0.4105 |
| 0.5 | 195.0 | 0.863 | 0.367 | 0.1638 |
| 0.5 | 225.0 | 1.81 | 0.687 | 0.5784 |
| 0.5 | 255.0 | 2.91 | 0.824 | 0.2094 |
| 0.5 | 285.0 | 2.81 | 0.82 | 0.415 |
| 0.5 | 315.0 | 1.07 | 0.318 | 0.4368 |
| 0.5 | 345.0 | 2.0 | 0.583 | 0.3271 |
| 0.7 | 15.0 | 0.972 | 0.327 | 0.2611 |
| 0.7 | 45.0 | 2.35 | 0.659 | 0.1138 |
| 0.7 | 75.0 | 1.99 | 0.657 | 0.3016 |
| 0.7 | 105.0 | 2.09 | 0.693 | 0.2964 |
| 0.7 | 135.0 | 1.85 | 0.583 | 0.4884 |
| 0.7 | 165.0 | 2.72 | 0.943 | 1.3795 |
| 0.7 | 195.0 | 1.24 | 0.373 | 0.615 |
| 0.7 | 225.0 | 1.41 | 0.608 | 0.2467 |
| 0.7 | 255.0 | 2.76 | 0.903 | 0.7978 |
| 0.7 | 285.0 | 3.61 | 1.19 | 1.1139 |
| 0.7 | 315.0 | 1.51 | 0.529 | 0.1321 |
| 0.7 | 345.0 | 0.574 | 0.259 | 0.1858 |
| 0.9 | 15.0 | 0.617 | 0.345 | 0.1482 |
| 0.9 | 45.0 | 0.969 | 0.433 | 0.1344 |
| 0.9 | 75.0 | 1.51 | 0.542 | 0.4489 |
| 0.9 | 105.0 | 1.63 | 0.804 | 0.4381 |
| 0.9 | 135.0 | 0.888 | 0.436 | 0.2061 |
| 0.9 | 165.0 | 1.79 | 0.65 | 0.5669 |
| 0.9 | 195.0 | 2.66 | 0.907 | 0.5539 |
| 0.9 | 225.0 | 2.62 | 1.07 | 0.7847 |
| 0.9 | 255.0 | 2.23 | 0.934 | 0.7747 |
| 0.9 | 285.0 | 2.04 | 0.804 | 0.2149 |
| 0.9 | 315.0 | 0.886 | 0.41 | 0.091 |
| 0.9 | 345.0 | 0.93 | 0.387 | 0.2842 |
Experiment comment: