Measurement E9M90
| 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: | 1.32 GeV | |
| ε: | 0.717 | |
| 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 | 1.26 | 0.357 | 0.1735 |
| -0.9 | 45.0 | 2.42 | 0.575 | 0.3806 |
| -0.9 | 75.0 | 1.95 | 0.524 | 0.2266 |
| -0.9 | 105.0 | 1.01 | 0.381 | 0.1689 |
| -0.9 | 135.0 | 1.48 | 0.437 | 0.2059 |
| -0.9 | 165.0 | 2.01 | 0.568 | 0.3316 |
| -0.9 | 195.0 | 0.954 | 0.319 | 0.0975 |
| -0.9 | 225.0 | 3.97 | 0.991 | 0.5967 |
| -0.9 | 255.0 | 2.8 | 0.776 | 0.3263 |
| -0.9 | 285.0 | 1.19 | 0.346 | 0.2949 |
| -0.9 | 315.0 | 0.774 | 0.29 | 0.3537 |
| -0.9 | 345.0 | 1.3 | 0.351 | 0.1259 |
| -0.7 | 15.0 | 2.56 | 0.496 | 0.1511 |
| -0.7 | 45.0 | 3.5 | 0.65 | 0.1401 |
| -0.7 | 75.0 | 3.5 | 0.672 | 0.3106 |
| -0.7 | 105.0 | 4.16 | 1.11 | 0.6243 |
| -0.7 | 135.0 | 2.86 | 0.738 | 0.6049 |
| -0.7 | 165.0 | 1.4 | 0.42 | 0.2882 |
| -0.7 | 195.0 | 2.73 | 0.669 | 0.5255 |
| -0.7 | 225.0 | 3.38 | 0.808 | 0.8682 |
| -0.7 | 255.0 | 3.63 | 0.871 | 0.823 |
| -0.7 | 285.0 | 3.89 | 0.784 | 0.3513 |
| -0.7 | 315.0 | 3.73 | 0.651 | 0.1916 |
| -0.7 | 345.0 | 2.32 | 0.426 | 0.3004 |
| -0.5 | 15.0 | 2.87 | 0.41 | 0.4424 |
| -0.5 | 45.0 | 4.4 | 0.68 | 0.2688 |
| -0.5 | 75.0 | 6.31 | 1.13 | 0.3155 |
| -0.5 | 105.0 | 7.39 | 1.44 | 0.6051 |
| -0.5 | 135.0 | 3.72 | 1.15 | 0.8117 |
| -0.5 | 165.0 | 2.48 | 0.616 | 1.6233 |
| -0.5 | 195.0 | 5.16 | 1.45 | 1.1314 |
| -0.5 | 225.0 | 4.66 | 1.53 | 0.2416 |
| -0.5 | 255.0 | 11.1 | 2.41 | 2.4026 |
| -0.5 | 285.0 | 4.6 | 0.902 | 0.1836 |
| -0.5 | 315.0 | 5.23 | 0.788 | 0.358 |
| -0.5 | 345.0 | 3.86 | 0.561 | 0.3275 |
| -0.3 | 15.0 | 2.35 | 0.366 | 0.6403 |
| -0.3 | 45.0 | 3.63 | 0.543 | 0.3837 |
| -0.3 | 75.0 | 6.3 | 1.05 | 0.3527 |
| -0.3 | 105.0 | 6.32 | 1.21 | 0.6459 |
| -0.3 | 135.0 | 3.91 | 0.99 | 0.8237 |
| -0.3 | 165.0 | 4.05 | 1.44 | 1.366 |
| -0.3 | 195.0 | 2.99 | 1.26 | 0.5403 |
| -0.3 | 225.0 | 3.65 | 1.0 | 0.3535 |
| -0.3 | 255.0 | 5.18 | 1.04 | 0.4522 |
| -0.3 | 285.0 | 6.01 | 1.03 | 0.3375 |
| -0.3 | 315.0 | 5.23 | 0.743 | 0.4103 |
| -0.3 | 345.0 | 4.33 | 0.632 | 0.556 |
| -0.1 | 15.0 | 3.94 | 0.601 | 0.5307 |
| -0.1 | 45.0 | 5.22 | 0.731 | 0.1084 |
| -0.1 | 75.0 | 7.55 | 1.2 | 0.365 |
| -0.1 | 105.0 | 5.95 | 0.993 | 0.3566 |
| -0.1 | 135.0 | 5.86 | 1.07 | 0.327 |
| -0.1 | 165.0 | 21.5 | 19.7 | 9.8052 |
| -0.1 | 195.0 | 2.76 | 1.18 | 1.6072 |
| -0.1 | 225.0 | 7.22 | 1.29 | 0.6259 |
| -0.1 | 255.0 | 6.68 | 1.04 | 0.1912 |
| -0.1 | 285.0 | 8.5 | 1.27 | 0.2719 |
| -0.1 | 315.0 | 3.94 | 0.551 | 0.6052 |
| -0.1 | 345.0 | 2.77 | 0.432 | 0.1108 |
| 0.1 | 15.0 | 3.94 | 0.588 | 0.2586 |
| 0.1 | 45.0 | 6.56 | 0.914 | 0.2021 |
| 0.1 | 75.0 | 5.28 | 0.884 | 0.741 |
| 0.1 | 105.0 | 7.88 | 1.05 | 0.7374 |
| 0.1 | 135.0 | 6.14 | 1.0 | 0.5407 |
| 0.1 | 165.0 | 6.81 | 3.21 | 1.8456 |
| 0.1 | 195.0 | 3.85 | 1.82 | 1.2548 |
| 0.1 | 225.0 | 6.7 | 1.05 | 0.9054 |
| 0.1 | 255.0 | 6.4 | 0.937 | 0.245 |
| 0.1 | 285.0 | 7.19 | 1.02 | 0.2749 |
| 0.1 | 315.0 | 6.88 | 0.936 | 1.226 |
| 0.1 | 345.0 | 3.35 | 0.492 | 0.1235 |
| 0.3 | 15.0 | 3.53 | 0.517 | 0.4814 |
| 0.3 | 45.0 | 5.02 | 0.763 | 0.3713 |
| 0.3 | 75.0 | 7.41 | 1.05 | 0.3378 |
| 0.3 | 105.0 | 6.68 | 0.897 | 0.1786 |
| 0.3 | 135.0 | 5.98 | 0.903 | 0.5693 |
| 0.3 | 165.0 | 8.01 | 2.79 | 2.4427 |
| 0.3 | 195.0 | 2.75 | 1.15 | 2.4611 |
| 0.3 | 225.0 | 5.96 | 0.893 | 0.7358 |
| 0.3 | 255.0 | 6.92 | 0.957 | 0.3783 |
| 0.3 | 285.0 | 9.14 | 1.27 | 0.654 |
| 0.3 | 315.0 | 5.34 | 0.789 | 0.3169 |
| 0.3 | 345.0 | 3.39 | 0.503 | 0.2789 |
| 0.5 | 15.0 | 3.17 | 0.481 | 0.138 |
| 0.5 | 45.0 | 3.7 | 0.597 | 0.4864 |
| 0.5 | 75.0 | 4.32 | 0.722 | 0.5178 |
| 0.5 | 105.0 | 5.98 | 0.884 | 0.5135 |
| 0.5 | 135.0 | 5.21 | 0.914 | 0.8159 |
| 0.5 | 165.0 | 2.15 | 1.2 | 0.8895 |
| 0.5 | 195.0 | 6.02 | 2.48 | 1.2376 |
| 0.5 | 225.0 | 4.95 | 0.858 | 0.8854 |
| 0.5 | 255.0 | 6.41 | 0.904 | 0.585 |
| 0.5 | 285.0 | 7.52 | 1.18 | 0.7175 |
| 0.5 | 315.0 | 4.4 | 0.705 | 0.3582 |
| 0.5 | 345.0 | 5.44 | 0.779 | 0.7137 |
| 0.7 | 15.0 | 2.37 | 0.442 | 0.2717 |
| 0.7 | 45.0 | 3.15 | 0.555 | 0.2639 |
| 0.7 | 75.0 | 4.39 | 0.859 | 0.1781 |
| 0.7 | 105.0 | 3.15 | 0.564 | 0.3326 |
| 0.7 | 135.0 | 4.9 | 1.05 | 1.2963 |
| 0.7 | 165.0 | 0.664 | 0.398 | 0.6225 |
| 0.7 | 195.0 | 5.39 | 2.44 | 1.2868 |
| 0.7 | 225.0 | 5.76 | 1.11 | 1.0213 |
| 0.7 | 255.0 | 5.51 | 0.866 | 0.6317 |
| 0.7 | 285.0 | 5.6 | 1.05 | 0.3992 |
| 0.7 | 315.0 | 3.21 | 0.568 | 0.1947 |
| 0.7 | 345.0 | 3.74 | 0.567 | 0.1231 |
| 0.9 | 15.0 | 1.12 | 0.316 | 0.3507 |
| 0.9 | 45.0 | 1.95 | 0.511 | 0.3356 |
| 0.9 | 75.0 | 3.45 | 0.872 | 0.6142 |
| 0.9 | 105.0 | 1.4 | 0.425 | 0.255 |
| 0.9 | 135.0 | 1.04 | 0.461 | 0.1755 |
| 0.9 | 165.0 | 2.16 | 0.869 | 0.6339 |
| 0.9 | 195.0 | 3.06 | 1.14 | 0.8363 |
| 0.9 | 225.0 | 4.81 | 1.6 | 1.0292 |
| 0.9 | 255.0 | 2.45 | 0.691 | 0.2498 |
| 0.9 | 285.0 | 2.92 | 0.733 | 0.3149 |
| 0.9 | 315.0 | 2.08 | 0.498 | 0.2309 |
| 0.9 | 345.0 | 1.93 | 0.409 | 0.1881 |
Experiment comment: