Measurement E9M195
| 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: | 1.12 GeV | |
| ε: | 0.886 | |
| 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 | 0.486 | 0.332 | 0.3576 |
| -0.9 | 45.0 | 0.571 | 0.476 | 0.1971 |
| -0.9 | 75.0 | 2.35 | 1.34 | 0.7407 |
| -0.9 | 105.0 | 0.274 | 0.207 | 0.2988 |
| -0.9 | 135.0 | 0.775 | 0.625 | 0.3966 |
| -0.9 | 165.0 | 0.715 | 0.786 | 0.9833 |
| -0.9 | 195.0 | 1.93 | 0.998 | 0.3313 |
| -0.9 | 225.0 | 0.945 | 0.496 | 0.4443 |
| -0.9 | 255.0 | 0.464 | 0.355 | 0.3369 |
| -0.9 | 285.0 | 0.808 | 0.942 | 0.6387 |
| -0.9 | 315.0 | 0.548 | 0.641 | 0.3892 |
| -0.7 | 15.0 | 0.807 | 0.544 | 0.1456 |
| -0.7 | 45.0 | 1.18 | 0.585 | 0.5518 |
| -0.7 | 75.0 | 2.36 | 1.02 | 0.9795 |
| -0.7 | 105.0 | 1.05 | 0.556 | 0.279 |
| -0.7 | 135.0 | 1.16 | 0.735 | 0.3514 |
| -0.7 | 165.0 | 1.52 | 0.751 | 0.8175 |
| -0.7 | 195.0 | 2.08 | 1.19 | 0.7839 |
| -0.7 | 225.0 | 0.595 | 0.368 | 0.2222 |
| -0.7 | 255.0 | 0.587 | 0.319 | 0.1752 |
| -0.7 | 285.0 | 0.843 | 0.484 | 0.8151 |
| -0.7 | 315.0 | 0.382 | 0.302 | 0.08 |
| -0.7 | 345.0 | 0.836 | 0.505 | 0.2441 |
| -0.5 | 15.0 | 0.682 | 0.456 | 0.2317 |
| -0.5 | 45.0 | 0.335 | 0.348 | 0.0823 |
| -0.5 | 75.0 | 1.11 | 0.481 | 0.4089 |
| -0.5 | 105.0 | 1.0 | 0.461 | 1.1997 |
| -0.5 | 135.0 | 1.95 | 0.909 | 0.354 |
| -0.5 | 165.0 | 1.62 | 0.734 | 0.1773 |
| -0.5 | 195.0 | 1.13 | 0.442 | 0.6437 |
| -0.5 | 225.0 | 1.98 | 1.0 | 0.7443 |
| -0.5 | 255.0 | 1.12 | 0.613 | 0.0673 |
| -0.5 | 285.0 | 1.14 | 0.725 | 0.5464 |
| -0.5 | 315.0 | 0.9 | 0.71 | 0.39 |
| -0.5 | 345.0 | 1.38 | 0.946 | 1.1387 |
| -0.3 | 15.0 | 0.62 | 0.321 | 0.8234 |
| -0.3 | 45.0 | 1.31 | 0.679 | 0.125 |
| -0.3 | 75.0 | 1.05 | 0.519 | 0.2832 |
| -0.3 | 105.0 | 1.32 | 0.506 | 0.3692 |
| -0.3 | 135.0 | 0.989 | 0.476 | 0.5252 |
| -0.3 | 165.0 | 1.74 | 0.645 | 0.2547 |
| -0.3 | 195.0 | 1.31 | 0.626 | 0.2145 |
| -0.3 | 225.0 | 2.1 | 0.772 | 0.5367 |
| -0.3 | 255.0 | 0.974 | 0.47 | 0.5825 |
| -0.3 | 285.0 | 1.04 | 0.517 | 0.1332 |
| -0.3 | 315.0 | 2.68 | 1.22 | 0.9853 |
| -0.3 | 345.0 | 22.2 | 23.4 | 13.5492 |
| -0.1 | 15.0 | 0.242 | 0.183 | 0.1677 |
| -0.1 | 45.0 | 0.86 | 0.494 | 0.2173 |
| -0.1 | 75.0 | 1.59 | 0.73 | 0.1807 |
| -0.1 | 105.0 | 1.54 | 0.697 | 0.2228 |
| -0.1 | 135.0 | 2.65 | 0.913 | 0.3516 |
| -0.1 | 165.0 | 2.03 | 0.906 | 0.1719 |
| -0.1 | 195.0 | 3.17 | 1.01 | 0.2576 |
| -0.1 | 225.0 | 1.2 | 0.525 | 0.4833 |
| -0.1 | 255.0 | 2.86 | 0.992 | 0.3813 |
| -0.1 | 285.0 | 0.991 | 0.468 | 1.0595 |
| -0.1 | 315.0 | 0.494 | 0.308 | 0.1811 |
| -0.1 | 345.0 | 4.82 | 2.51 | 1.4719 |
| 0.1 | 15.0 | 1.44 | 0.611 | 0.2681 |
| 0.1 | 45.0 | 1.54 | 0.618 | 0.7748 |
| 0.1 | 75.0 | 1.16 | 0.428 | 0.3786 |
| 0.1 | 105.0 | 1.68 | 0.709 | 0.2062 |
| 0.1 | 135.0 | 3.13 | 0.895 | 1.4667 |
| 0.1 | 165.0 | 4.77 | 1.58 | 0.7142 |
| 0.1 | 195.0 | 2.38 | 0.818 | 0.2863 |
| 0.1 | 225.0 | 1.96 | 0.728 | 0.2695 |
| 0.1 | 255.0 | 1.23 | 0.549 | 0.1951 |
| 0.1 | 285.0 | 0.912 | 0.564 | 0.2551 |
| 0.1 | 315.0 | 0.383 | 0.236 | 0.1241 |
| 0.1 | 345.0 | 2.59 | 1.18 | 0.5099 |
| 0.3 | 15.0 | 1.86 | 0.826 | 0.3992 |
| 0.3 | 45.0 | 0.818 | 0.386 | 0.0364 |
| 0.3 | 75.0 | 1.28 | 0.638 | 0.0873 |
| 0.3 | 105.0 | 2.3 | 0.72 | 0.4069 |
| 0.3 | 135.0 | 1.37 | 0.56 | 0.3884 |
| 0.3 | 165.0 | 1.19 | 0.484 | 0.2453 |
| 0.3 | 195.0 | 2.86 | 0.85 | 0.2419 |
| 0.3 | 225.0 | 2.5 | 0.988 | 0.6908 |
| 0.3 | 255.0 | 3.59 | 1.09 | 0.575 |
| 0.3 | 285.0 | 2.84 | 1.22 | 0.6609 |
| 0.3 | 315.0 | 2.34 | 1.0 | 0.7148 |
| 0.3 | 345.0 | 1.69 | 0.987 | 0.2216 |
| 0.5 | 15.0 | 1.34 | 0.589 | 0.3389 |
| 0.5 | 45.0 | 3.56 | 1.35 | 1.137 |
| 0.5 | 75.0 | 2.28 | 0.928 | 0.5977 |
| 0.5 | 105.0 | 1.05 | 0.504 | 0.7836 |
| 0.5 | 135.0 | 2.56 | 1.04 | 0.6507 |
| 0.5 | 165.0 | 3.17 | 1.12 | 0.4103 |
| 0.5 | 195.0 | 2.85 | 0.902 | 0.3039 |
| 0.5 | 225.0 | 3.77 | 1.14 | 0.7005 |
| 0.5 | 255.0 | 1.88 | 0.643 | 0.6186 |
| 0.5 | 285.0 | 0.776 | 0.421 | 0.201 |
| 0.5 | 315.0 | 1.18 | 0.492 | 0.2729 |
| 0.5 | 345.0 | 0.794 | 0.437 | 0.2092 |
| 0.7 | 15.0 | 1.0 | 0.52 | 0.1645 |
| 0.7 | 45.0 | 1.55 | 0.579 | 1.5177 |
| 0.7 | 75.0 | 0.722 | 0.345 | 0.371 |
| 0.7 | 105.0 | 1.62 | 0.611 | 0.1225 |
| 0.7 | 135.0 | 4.14 | 1.33 | 0.2976 |
| 0.7 | 165.0 | 4.12 | 1.4 | 0.3242 |
| 0.7 | 195.0 | 2.75 | 1.03 | 0.7358 |
| 0.7 | 225.0 | 1.69 | 0.664 | 0.2471 |
| 0.7 | 255.0 | 2.18 | 0.89 | 0.2241 |
| 0.7 | 285.0 | 2.73 | 1.01 | 0.4492 |
| 0.7 | 315.0 | 3.63 | 1.71 | 1.242 |
| 0.7 | 345.0 | 3.59 | 1.66 | 1.3583 |
| 0.9 | 15.0 | 1.05 | 0.841 | 0.2168 |
| 0.9 | 45.0 | 3.46 | 1.44 | 1.0006 |
| 0.9 | 75.0 | 1.28 | 0.626 | 0.31 |
| 0.9 | 105.0 | 3.2 | 1.15 | 0.4069 |
| 0.9 | 135.0 | 1.54 | 0.696 | 0.2712 |
| 0.9 | 165.0 | 2.93 | 0.957 | 1.1729 |
| 0.9 | 195.0 | 5.01 | 1.85 | 1.1646 |
| 0.9 | 225.0 | 2.89 | 1.35 | 0.9634 |
| 0.9 | 255.0 | 2.63 | 1.08 | 0.472 |
| 0.9 | 285.0 | 4.02 | 1.5 | 0.8053 |
| 0.9 | 315.0 | 3.58 | 1.63 | 2.0272 |
| 0.9 | 345.0 | 2.87 | 1.3 | 1.1204 |
Experiment comment: