Measurement E9M89
| 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: | 0.45 — 0.6 GeV2 | |
| W: | 1.3 GeV | |
| ε: | 0.732 | |
| 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 | 1.81 | 0.418 | 0.4417 |
| -0.9 | 45.0 | 1.96 | 0.412 | 0.2436 |
| -0.9 | 75.0 | 2.92 | 0.701 | 0.4932 |
| -0.9 | 105.0 | 2.11 | 0.58 | 0.2952 |
| -0.9 | 135.0 | 2.44 | 0.648 | 0.2771 |
| -0.9 | 165.0 | 1.65 | 0.48 | 0.1012 |
| -0.9 | 195.0 | 2.12 | 0.566 | 0.2799 |
| -0.9 | 225.0 | 2.61 | 0.591 | 0.1895 |
| -0.9 | 255.0 | 5.18 | 1.21 | 0.6078 |
| -0.9 | 285.0 | 3.35 | 0.77 | 0.6725 |
| -0.9 | 315.0 | 2.01 | 0.456 | 0.1305 |
| -0.9 | 345.0 | 2.36 | 0.527 | 0.2501 |
| -0.7 | 15.0 | 3.08 | 0.488 | 0.087 |
| -0.7 | 45.0 | 6.15 | 0.939 | 0.6197 |
| -0.7 | 75.0 | 4.03 | 0.761 | 0.4385 |
| -0.7 | 105.0 | 3.69 | 0.741 | 0.9055 |
| -0.7 | 135.0 | 3.24 | 0.757 | 0.2525 |
| -0.7 | 165.0 | 2.43 | 0.582 | 0.1862 |
| -0.7 | 195.0 | 1.69 | 0.392 | 0.1204 |
| -0.7 | 225.0 | 2.63 | 0.559 | 0.2451 |
| -0.7 | 255.0 | 5.97 | 1.07 | 0.989 |
| -0.7 | 285.0 | 7.18 | 1.1 | 0.5424 |
| -0.7 | 315.0 | 5.0 | 0.718 | 0.5603 |
| -0.7 | 345.0 | 3.68 | 0.568 | 0.3903 |
| -0.5 | 15.0 | 3.24 | 0.465 | 0.2672 |
| -0.5 | 45.0 | 6.5 | 0.833 | 0.4369 |
| -0.5 | 75.0 | 6.37 | 1.02 | 0.4253 |
| -0.5 | 105.0 | 8.23 | 1.41 | 0.6091 |
| -0.5 | 135.0 | 4.74 | 1.16 | 1.2463 |
| -0.5 | 165.0 | 3.53 | 0.783 | 0.2698 |
| -0.5 | 195.0 | 5.65 | 1.14 | 1.1749 |
| -0.5 | 225.0 | 2.6 | 0.832 | 0.4213 |
| -0.5 | 255.0 | 8.04 | 1.39 | 1.6116 |
| -0.5 | 285.0 | 8.33 | 1.31 | 1.1373 |
| -0.5 | 315.0 | 6.58 | 0.87 | 0.342 |
| -0.5 | 345.0 | 4.25 | 0.575 | 0.2588 |
| -0.3 | 15.0 | 4.49 | 0.575 | 0.1019 |
| -0.3 | 45.0 | 5.51 | 0.709 | 0.2178 |
| -0.3 | 75.0 | 11.0 | 1.54 | 1.2802 |
| -0.3 | 105.0 | 10.3 | 1.58 | 1.0137 |
| -0.3 | 135.0 | 6.82 | 1.56 | 0.498 |
| -0.3 | 165.0 | 4.91 | 1.25 | 1.2478 |
| -0.3 | 195.0 | 2.94 | 0.778 | 0.4249 |
| -0.3 | 225.0 | 4.02 | 1.12 | 1.2441 |
| -0.3 | 255.0 | 6.12 | 1.09 | 1.9985 |
| -0.3 | 285.0 | 8.67 | 1.18 | 0.4772 |
| -0.3 | 315.0 | 6.41 | 0.805 | 1.349 |
| -0.3 | 345.0 | 3.84 | 0.501 | 0.2144 |
| -0.1 | 15.0 | 5.51 | 0.69 | 0.4159 |
| -0.1 | 45.0 | 7.66 | 0.949 | 0.2007 |
| -0.1 | 75.0 | 7.49 | 1.1 | 0.3562 |
| -0.1 | 105.0 | 11.4 | 1.59 | 0.3122 |
| -0.1 | 135.0 | 7.64 | 1.38 | 0.8332 |
| -0.1 | 165.0 | 2.78 | 1.02 | 0.4686 |
| -0.1 | 195.0 | 4.89 | 1.37 | 1.8524 |
| -0.1 | 225.0 | 9.18 | 1.54 | 0.979 |
| -0.1 | 255.0 | 10.2 | 1.52 | 0.6481 |
| -0.1 | 285.0 | 9.18 | 1.32 | 0.2363 |
| -0.1 | 315.0 | 7.73 | 0.91 | 0.6079 |
| -0.1 | 345.0 | 4.81 | 0.593 | 0.0698 |
| 0.1 | 15.0 | 4.41 | 0.576 | 0.1673 |
| 0.1 | 45.0 | 6.74 | 0.842 | 0.3582 |
| 0.1 | 75.0 | 11.4 | 1.5 | 0.5657 |
| 0.1 | 105.0 | 10.4 | 1.4 | 0.4525 |
| 0.1 | 135.0 | 7.83 | 1.31 | 0.5947 |
| 0.1 | 165.0 | 6.91 | 2.56 | 1.5347 |
| 0.1 | 195.0 | 8.7 | 4.36 | 3.5136 |
| 0.1 | 225.0 | 8.07 | 1.42 | 0.6987 |
| 0.1 | 255.0 | 11.9 | 1.46 | 0.5362 |
| 0.1 | 285.0 | 9.75 | 1.22 | 0.3604 |
| 0.1 | 315.0 | 6.13 | 0.839 | 0.37 |
| 0.1 | 345.0 | 4.77 | 0.628 | 0.0957 |
| 0.3 | 15.0 | 4.17 | 0.599 | 0.1988 |
| 0.3 | 45.0 | 6.42 | 0.816 | 0.5591 |
| 0.3 | 75.0 | 8.2 | 1.1 | 0.6618 |
| 0.3 | 105.0 | 7.96 | 1.07 | 0.5076 |
| 0.3 | 135.0 | 7.48 | 1.13 | 0.3052 |
| 0.3 | 165.0 | 3.76 | 1.58 | 1.0538 |
| 0.3 | 195.0 | 2.6 | 1.41 | 0.5473 |
| 0.3 | 225.0 | 10.5 | 1.56 | 1.2789 |
| 0.3 | 255.0 | 14.0 | 1.71 | 0.7416 |
| 0.3 | 285.0 | 8.51 | 1.07 | 0.7859 |
| 0.3 | 315.0 | 3.93 | 0.599 | 0.2103 |
| 0.3 | 345.0 | 5.23 | 0.611 | 0.1482 |
| 0.5 | 15.0 | 3.97 | 0.543 | 0.3585 |
| 0.5 | 45.0 | 7.19 | 0.979 | 0.4041 |
| 0.5 | 75.0 | 5.61 | 0.836 | 0.3278 |
| 0.5 | 105.0 | 8.87 | 1.2 | 0.786 |
| 0.5 | 135.0 | 6.81 | 1.04 | 0.3755 |
| 0.5 | 165.0 | 11.3 | 4.0 | 4.3479 |
| 0.5 | 195.0 | 5.42 | 2.0 | 1.333 |
| 0.5 | 225.0 | 6.87 | 1.11 | 0.6479 |
| 0.5 | 255.0 | 7.53 | 1.01 | 1.0818 |
| 0.5 | 285.0 | 6.51 | 0.957 | 0.2222 |
| 0.5 | 315.0 | 4.89 | 0.691 | 0.5735 |
| 0.5 | 345.0 | 5.68 | 0.696 | 0.4686 |
| 0.7 | 15.0 | 2.74 | 0.45 | 0.1322 |
| 0.7 | 45.0 | 3.28 | 0.568 | 0.3349 |
| 0.7 | 75.0 | 6.9 | 1.08 | 0.8433 |
| 0.7 | 105.0 | 5.25 | 0.836 | 0.6855 |
| 0.7 | 135.0 | 6.71 | 1.22 | 1.0796 |
| 0.7 | 165.0 | 5.92 | 1.68 | 1.4589 |
| 0.7 | 195.0 | 3.89 | 1.28 | 1.3611 |
| 0.7 | 225.0 | 5.87 | 1.24 | 1.0244 |
| 0.7 | 255.0 | 4.78 | 0.825 | 0.5213 |
| 0.7 | 285.0 | 5.89 | 0.942 | 0.4195 |
| 0.7 | 315.0 | 2.69 | 0.501 | 0.2514 |
| 0.7 | 345.0 | 3.63 | 0.6 | 0.4574 |
| 0.9 | 15.0 | 3.3 | 0.671 | 0.3311 |
| 0.9 | 45.0 | 2.59 | 0.53 | 0.2192 |
| 0.9 | 75.0 | 2.9 | 0.666 | 0.316 |
| 0.9 | 105.0 | 3.24 | 0.794 | 0.5586 |
| 0.9 | 135.0 | 2.3 | 0.746 | 0.6035 |
| 0.9 | 165.0 | 1.95 | 0.61 | 0.6796 |
| 0.9 | 195.0 | 2.07 | 0.869 | 0.8811 |
| 0.9 | 225.0 | 2.79 | 0.812 | 0.7266 |
| 0.9 | 255.0 | 2.77 | 0.645 | 0.5882 |
| 0.9 | 285.0 | 2.51 | 0.606 | 0.6021 |
| 0.9 | 315.0 | 2.28 | 0.546 | 0.2511 |
| 0.9 | 345.0 | 2.65 | 0.52 | 0.3523 |
Experiment comment: