Measurement E9M9
| 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: | 0.35 — 0.45 GeV2 | |
| W: | 1.26 GeV | |
| ε: | 0.814 | |
| 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 | 4.7 | 0.865 | 0.6064 |
| -0.9 | 45.0 | 8.7 | 1.38 | 0.7882 |
| -0.9 | 75.0 | 6.85 | 1.1 | 0.3406 |
| -0.9 | 105.0 | 8.85 | 1.43 | 0.6392 |
| -0.9 | 135.0 | 6.15 | 1.11 | 0.2158 |
| -0.9 | 165.0 | 2.33 | 0.498 | 0.4339 |
| -0.9 | 195.0 | 4.64 | 0.942 | 0.6773 |
| -0.9 | 225.0 | 4.8 | 0.897 | 0.1682 |
| -0.9 | 255.0 | 6.44 | 0.995 | 0.525 |
| -0.9 | 285.0 | 7.39 | 1.2 | 0.7943 |
| -0.9 | 315.0 | 6.79 | 1.08 | 0.3726 |
| -0.9 | 345.0 | 6.66 | 1.1 | 0.5608 |
| -0.7 | 15.0 | 8.56 | 0.991 | 0.1127 |
| -0.7 | 45.0 | 12.3 | 1.25 | 0.9579 |
| -0.7 | 75.0 | 13.6 | 1.62 | 0.2915 |
| -0.7 | 105.0 | 9.67 | 1.5 | 1.5082 |
| -0.7 | 135.0 | 9.32 | 1.43 | 1.1952 |
| -0.7 | 165.0 | 5.92 | 0.894 | 0.343 |
| -0.7 | 195.0 | 5.62 | 0.908 | 0.9054 |
| -0.7 | 225.0 | 9.37 | 1.5 | 0.6179 |
| -0.7 | 255.0 | 12.2 | 1.69 | 0.4359 |
| -0.7 | 285.0 | 16.0 | 1.92 | 2.3125 |
| -0.7 | 315.0 | 11.1 | 1.24 | 0.5408 |
| -0.7 | 345.0 | 9.6 | 1.08 | 0.6013 |
| -0.5 | 15.0 | 11.6 | 1.18 | 0.9165 |
| -0.5 | 45.0 | 13.4 | 1.32 | 0.9367 |
| -0.5 | 75.0 | 19.5 | 2.35 | 1.43 |
| -0.5 | 105.0 | 17.1 | 2.63 | 1.0025 |
| -0.5 | 135.0 | 8.97 | 1.99 | 0.3898 |
| -0.5 | 165.0 | 5.71 | 0.933 | 0.416 |
| -0.5 | 195.0 | 8.66 | 1.21 | 0.6483 |
| -0.5 | 225.0 | 13.5 | 2.38 | 1.468 |
| -0.5 | 255.0 | 24.8 | 3.41 | 2.7359 |
| -0.5 | 285.0 | 19.4 | 2.26 | 1.084 |
| -0.5 | 315.0 | 15.6 | 1.47 | 0.7794 |
| -0.5 | 345.0 | 10.9 | 1.14 | 0.1225 |
| -0.3 | 15.0 | 9.76 | 1.0 | 0.4437 |
| -0.3 | 45.0 | 16.2 | 1.56 | 0.461 |
| -0.3 | 75.0 | 18.6 | 2.4 | 0.5408 |
| -0.3 | 105.0 | 21.6 | 3.4 | 2.8452 |
| -0.3 | 135.0 | 21.0 | 4.59 | 2.7231 |
| -0.3 | 165.0 | 8.73 | 1.4 | 0.5599 |
| -0.3 | 195.0 | 6.9 | 1.2 | 1.3276 |
| -0.3 | 225.0 | 20.9 | 4.28 | 0.9899 |
| -0.3 | 255.0 | 16.0 | 2.65 | 2.5451 |
| -0.3 | 285.0 | 17.6 | 2.31 | 0.6164 |
| -0.3 | 315.0 | 16.4 | 1.55 | 0.9165 |
| -0.3 | 345.0 | 9.81 | 1.0 | 0.5371 |
| -0.1 | 15.0 | 9.13 | 0.979 | 0.2892 |
| -0.1 | 45.0 | 16.9 | 1.66 | 0.3674 |
| -0.1 | 75.0 | 24.8 | 3.26 | 3.6544 |
| -0.1 | 105.0 | 20.9 | 2.91 | 1.362 |
| -0.1 | 135.0 | 17.6 | 3.15 | 0.9618 |
| -0.1 | 165.0 | 8.46 | 1.63 | 1.0806 |
| -0.1 | 195.0 | 13.3 | 2.31 | 1.8574 |
| -0.1 | 225.0 | 16.9 | 3.24 | 1.0817 |
| -0.1 | 255.0 | 23.6 | 3.34 | 2.0676 |
| -0.1 | 285.0 | 24.1 | 2.88 | 0.8646 |
| -0.1 | 315.0 | 19.3 | 1.73 | 0.495 |
| -0.1 | 345.0 | 9.55 | 1.02 | 0.477 |
| 0.1 | 15.0 | 9.86 | 1.03 | 0.5194 |
| 0.1 | 45.0 | 15.2 | 1.53 | 0.755 |
| 0.1 | 75.0 | 18.2 | 2.32 | 0.5612 |
| 0.1 | 105.0 | 22.4 | 2.57 | 1.7543 |
| 0.1 | 135.0 | 12.4 | 1.97 | 0.7467 |
| 0.1 | 165.0 | 8.68 | 2.32 | 1.4178 |
| 0.1 | 195.0 | 14.3 | 2.66 | 2.4764 |
| 0.1 | 225.0 | 16.4 | 2.41 | 1.3086 |
| 0.1 | 255.0 | 20.3 | 2.63 | 0.5074 |
| 0.1 | 285.0 | 16.2 | 2.22 | 0.5723 |
| 0.1 | 315.0 | 15.1 | 1.56 | 0.3123 |
| 0.1 | 345.0 | 10.8 | 1.12 | 0.4723 |
| 0.3 | 15.0 | 9.18 | 0.986 | 0.5892 |
| 0.3 | 45.0 | 14.6 | 1.56 | 0.5612 |
| 0.3 | 75.0 | 25.2 | 2.83 | 1.0989 |
| 0.3 | 105.0 | 19.1 | 2.18 | 0.9487 |
| 0.3 | 135.0 | 19.6 | 2.6 | 2.5524 |
| 0.3 | 165.0 | 8.93 | 2.37 | 1.484 |
| 0.3 | 195.0 | 12.2 | 2.61 | 1.6905 |
| 0.3 | 225.0 | 28.4 | 3.39 | 2.0125 |
| 0.3 | 255.0 | 18.9 | 2.19 | 0.5766 |
| 0.3 | 285.0 | 18.4 | 2.45 | 0.5148 |
| 0.3 | 315.0 | 13.4 | 1.38 | 0.9682 |
| 0.3 | 345.0 | 9.58 | 0.973 | 0.5661 |
| 0.5 | 15.0 | 5.76 | 0.738 | 0.2515 |
| 0.5 | 45.0 | 12.6 | 1.44 | 0.4583 |
| 0.5 | 75.0 | 16.1 | 2.28 | 1.1303 |
| 0.5 | 105.0 | 17.4 | 2.01 | 1.5008 |
| 0.5 | 135.0 | 21.2 | 2.86 | 2.915 |
| 0.5 | 165.0 | 14.5 | 3.42 | 2.8116 |
| 0.5 | 195.0 | 7.71 | 1.86 | 1.1855 |
| 0.5 | 225.0 | 19.5 | 2.74 | 3.4121 |
| 0.5 | 255.0 | 20.9 | 2.42 | 2.6707 |
| 0.5 | 285.0 | 21.8 | 2.67 | 0.6285 |
| 0.5 | 315.0 | 10.2 | 1.23 | 0.1913 |
| 0.5 | 345.0 | 7.73 | 0.88 | 0.8731 |
| 0.7 | 15.0 | 8.15 | 1.01 | 0.2846 |
| 0.7 | 45.0 | 9.12 | 1.23 | 1.043 |
| 0.7 | 75.0 | 12.4 | 1.98 | 1.0897 |
| 0.7 | 105.0 | 10.6 | 1.54 | 1.1331 |
| 0.7 | 135.0 | 12.8 | 2.12 | 1.6472 |
| 0.7 | 165.0 | 6.33 | 1.78 | 2.0517 |
| 0.7 | 195.0 | 11.2 | 2.62 | 2.1037 |
| 0.7 | 225.0 | 13.3 | 2.28 | 2.0255 |
| 0.7 | 255.0 | 15.4 | 2.02 | 1.8042 |
| 0.7 | 285.0 | 16.9 | 2.35 | 1.8344 |
| 0.7 | 315.0 | 11.7 | 1.35 | 0.8216 |
| 0.7 | 345.0 | 8.2 | 0.975 | 0.87 |
| 0.9 | 15.0 | 4.16 | 0.676 | 0.4989 |
| 0.9 | 45.0 | 8.96 | 1.29 | 0.9666 |
| 0.9 | 75.0 | 8.94 | 1.49 | 0.7198 |
| 0.9 | 105.0 | 7.02 | 1.48 | 2.63 |
| 0.9 | 135.0 | 7.65 | 1.79 | 1.4026 |
| 0.9 | 165.0 | 6.92 | 1.43 | 1.1163 |
| 0.9 | 195.0 | 7.35 | 1.63 | 1.4747 |
| 0.9 | 225.0 | 4.85 | 1.32 | 1.4929 |
| 0.9 | 255.0 | 12.2 | 2.18 | 1.9516 |
| 0.9 | 285.0 | 8.33 | 1.43 | 0.7258 |
| 0.9 | 315.0 | 6.73 | 1.08 | 0.9499 |
| 0.9 | 345.0 | 5.67 | 0.888 | 0.7783 |
Experiment comment: