Measurement E9M66
| 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: | 1.22 GeV | |
| ε: | 0.581 | |
| 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 | 3.48 | 1.12 | 0.7695 |
| -0.9 | 45.0 | 1.01 | 0.416 | 0.323 |
| -0.9 | 75.0 | 1.42 | 0.52 | 0.3482 |
| -0.9 | 105.0 | 1.84 | 0.682 | 1.5507 |
| -0.9 | 135.0 | 0.419 | 0.228 | 0.4107 |
| -0.9 | 165.0 | 0.745 | 0.293 | 0.4002 |
| -0.9 | 195.0 | 1.04 | 0.461 | 0.4566 |
| -0.9 | 225.0 | 1.02 | 0.446 | 0.2767 |
| -0.9 | 255.0 | 0.667 | 0.327 | 0.3467 |
| -0.9 | 285.0 | 2.73 | 0.858 | 0.4233 |
| -0.9 | 315.0 | 0.935 | 0.404 | 0.1889 |
| -0.9 | 345.0 | 1.13 | 0.451 | 0.1907 |
| -0.7 | 15.0 | 2.29 | 0.633 | 0.0812 |
| -0.7 | 45.0 | 1.78 | 0.569 | 0.1912 |
| -0.7 | 75.0 | 2.04 | 0.659 | 0.4545 |
| -0.7 | 105.0 | 1.9 | 0.647 | 0.4757 |
| -0.7 | 135.0 | 2.72 | 1.03 | 0.8245 |
| -0.7 | 165.0 | 0.365 | 0.222 | 0.054 |
| -0.7 | 195.0 | 1.18 | 0.503 | 0.1521 |
| -0.7 | 225.0 | 0.9 | 0.398 | 0.211 |
| -0.7 | 255.0 | 2.39 | 0.791 | 0.2962 |
| -0.7 | 285.0 | 1.97 | 0.586 | 0.1965 |
| -0.7 | 315.0 | 1.09 | 0.424 | 0.2351 |
| -0.7 | 345.0 | 1.06 | 0.294 | 1.5254 |
| -0.5 | 15.0 | 1.93 | 0.573 | 0.3636 |
| -0.5 | 45.0 | 3.36 | 0.992 | 0.1636 |
| -0.5 | 75.0 | 2.76 | 0.835 | 0.4218 |
| -0.5 | 105.0 | 4.58 | 1.3 | 0.7572 |
| -0.5 | 135.0 | 2.81 | 1.05 | 0.4563 |
| -0.5 | 165.0 | 1.51 | 0.523 | 0.1508 |
| -0.5 | 195.0 | 1.22 | 0.431 | 0.3008 |
| -0.5 | 225.0 | 1.68 | 0.627 | 0.1329 |
| -0.5 | 255.0 | 3.03 | 0.797 | 0.4499 |
| -0.5 | 285.0 | 2.26 | 0.677 | 0.2894 |
| -0.5 | 315.0 | 1.62 | 0.528 | 0.2303 |
| -0.5 | 345.0 | 1.43 | 0.485 | 0.1304 |
| -0.3 | 15.0 | 2.27 | 0.598 | 0.0982 |
| -0.3 | 45.0 | 2.29 | 0.664 | 0.3617 |
| -0.3 | 75.0 | 2.72 | 0.771 | 0.3296 |
| -0.3 | 105.0 | 2.57 | 0.761 | 0.1004 |
| -0.3 | 135.0 | 1.03 | 0.415 | 0.192 |
| -0.3 | 165.0 | 1.3 | 0.419 | 0.0687 |
| -0.3 | 195.0 | 2.69 | 0.813 | 0.5637 |
| -0.3 | 225.0 | 4.2 | 1.32 | 1.0565 |
| -0.3 | 255.0 | 2.64 | 0.904 | 0.5376 |
| -0.3 | 285.0 | 2.93 | 0.814 | 0.6386 |
| -0.3 | 315.0 | 2.03 | 0.589 | 0.2909 |
| -0.3 | 345.0 | 0.91 | 0.295 | 0.5177 |
| -0.1 | 15.0 | 2.31 | 0.612 | 0.2354 |
| -0.1 | 45.0 | 1.89 | 0.572 | 0.3024 |
| -0.1 | 75.0 | 3.79 | 1.02 | 0.3001 |
| -0.1 | 105.0 | 3.51 | 0.947 | 0.5507 |
| -0.1 | 135.0 | 3.01 | 1.04 | 0.5986 |
| -0.1 | 165.0 | 3.14 | 0.962 | 0.418 |
| -0.1 | 195.0 | 2.17 | 0.617 | 0.0412 |
| -0.1 | 225.0 | 3.76 | 1.06 | 0.3917 |
| -0.1 | 255.0 | 4.75 | 1.3 | 0.8627 |
| -0.1 | 285.0 | 5.8 | 1.62 | 1.1494 |
| -0.1 | 315.0 | 1.69 | 0.614 | 0.2336 |
| -0.1 | 345.0 | 1.3 | 0.37 | 0.3169 |
| 0.1 | 15.0 | 1.48 | 0.425 | 0.0743 |
| 0.1 | 45.0 | 4.43 | 1.37 | 1.3403 |
| 0.1 | 75.0 | 2.71 | 0.774 | 0.1306 |
| 0.1 | 105.0 | 2.46 | 0.771 | 0.488 |
| 0.1 | 135.0 | 4.47 | 1.41 | 0.5835 |
| 0.1 | 165.0 | 2.75 | 0.825 | 0.4139 |
| 0.1 | 195.0 | 5.24 | 1.43 | 1.3092 |
| 0.1 | 225.0 | 4.3 | 1.12 | 0.8804 |
| 0.1 | 255.0 | 2.66 | 0.875 | 0.2824 |
| 0.1 | 285.0 | 4.01 | 1.1 | 0.804 |
| 0.1 | 315.0 | 2.8 | 0.914 | 0.5615 |
| 0.1 | 345.0 | 1.38 | 0.385 | 0.1456 |
| 0.3 | 15.0 | 3.89 | 1.27 | 1.07 |
| 0.3 | 45.0 | 1.22 | 0.362 | 0.7585 |
| 0.3 | 75.0 | 6.31 | 1.64 | 1.0923 |
| 0.3 | 105.0 | 7.02 | 1.8 | 1.5059 |
| 0.3 | 135.0 | 2.48 | 0.875 | 0.4505 |
| 0.3 | 165.0 | 2.54 | 0.677 | 0.4102 |
| 0.3 | 195.0 | 2.1 | 0.636 | 0.3835 |
| 0.3 | 225.0 | 2.98 | 0.898 | 0.6141 |
| 0.3 | 255.0 | 4.97 | 1.3 | 0.8285 |
| 0.3 | 285.0 | 3.75 | 1.08 | 0.5851 |
| 0.3 | 315.0 | 3.01 | 0.818 | 0.1303 |
| 0.3 | 345.0 | 1.15 | 0.34 | 0.2646 |
| 0.5 | 15.0 | 1.87 | 0.596 | 0.2562 |
| 0.5 | 45.0 | 4.56 | 1.29 | 0.9142 |
| 0.5 | 75.0 | 7.07 | 2.18 | 1.9568 |
| 0.5 | 105.0 | 3.17 | 0.957 | 0.6644 |
| 0.5 | 135.0 | 2.63 | 0.848 | 0.4585 |
| 0.5 | 165.0 | 4.74 | 1.42 | 1.5775 |
| 0.5 | 195.0 | 4.95 | 1.36 | 0.5548 |
| 0.5 | 225.0 | 4.01 | 1.17 | 0.6963 |
| 0.5 | 255.0 | 4.46 | 1.43 | 0.4976 |
| 0.5 | 285.0 | 4.31 | 1.28 | 0.6095 |
| 0.5 | 315.0 | 1.16 | 0.348 | 0.3969 |
| 0.5 | 345.0 | 1.75 | 0.544 | 0.2171 |
| 0.7 | 15.0 | 1.73 | 0.559 | 0.3297 |
| 0.7 | 45.0 | 2.58 | 0.848 | 0.2738 |
| 0.7 | 75.0 | 1.8 | 0.558 | 0.2584 |
| 0.7 | 105.0 | 1.81 | 0.668 | 0.2283 |
| 0.7 | 135.0 | 1.42 | 0.495 | 0.2293 |
| 0.7 | 165.0 | 2.76 | 0.816 | 0.4382 |
| 0.7 | 195.0 | 2.88 | 0.76 | 0.6141 |
| 0.7 | 225.0 | 2.36 | 0.839 | 0.4095 |
| 0.7 | 255.0 | 3.24 | 1.08 | 0.9707 |
| 0.7 | 285.0 | 2.85 | 0.91 | 0.6519 |
| 0.7 | 315.0 | 3.05 | 0.906 | 0.5334 |
| 0.7 | 345.0 | 1.21 | 0.415 | 0.1793 |
| 0.9 | 15.0 | 1.16 | 0.491 | 0.6118 |
| 0.9 | 45.0 | 0.931 | 0.411 | 0.1879 |
| 0.9 | 75.0 | 3.02 | 1.25 | 1.0885 |
| 0.9 | 105.0 | 2.72 | 1.12 | 0.8061 |
| 0.9 | 135.0 | 4.2 | 1.45 | 0.9436 |
| 0.9 | 165.0 | 2.15 | 0.712 | 0.4326 |
| 0.9 | 195.0 | 3.86 | 1.21 | 1.4244 |
| 0.9 | 225.0 | 2.2 | 0.853 | 0.718 |
| 0.9 | 255.0 | 1.9 | 0.782 | 0.2702 |
| 0.9 | 285.0 | 5.06 | 1.78 | 1.8423 |
| 0.9 | 315.0 | 1.21 | 0.453 | 0.3003 |
| 0.9 | 345.0 | 2.44 | 0.925 | 0.498 |
Experiment comment: