Measurement E9M37
| 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: | 1.3 — 1.6 GeV2 | |
| W: | 1.22 GeV | |
| ε: | 0.689 | |
| 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 | 3.54 | 0.825 | 0.2787 |
| -0.9 | 45.0 | 3.07 | 0.828 | 0.1734 |
| -0.9 | 75.0 | 3.86 | 0.9 | 0.4449 |
| -0.9 | 105.0 | 2.71 | 0.695 | 0.2668 |
| -0.9 | 135.0 | 1.77 | 0.59 | 0.142 |
| -0.9 | 165.0 | 0.91 | 0.306 | 0.2184 |
| -0.9 | 195.0 | 1.08 | 0.385 | 0.2837 |
| -0.9 | 225.0 | 1.35 | 0.344 | 0.3093 |
| -0.9 | 255.0 | 5.13 | 1.45 | 1.5795 |
| -0.9 | 285.0 | 2.34 | 0.577 | 0.8989 |
| -0.9 | 315.0 | 3.57 | 0.851 | 0.4665 |
| -0.9 | 345.0 | 1.88 | 0.506 | 0.2973 |
| -0.7 | 15.0 | 3.15 | 0.658 | 0.5182 |
| -0.7 | 45.0 | 2.91 | 0.59 | 0.7283 |
| -0.7 | 75.0 | 2.87 | 0.629 | 0.5897 |
| -0.7 | 105.0 | 4.06 | 0.92 | 0.6308 |
| -0.7 | 135.0 | 3.23 | 0.757 | 0.6758 |
| -0.7 | 165.0 | 3.3 | 0.728 | 0.118 |
| -0.7 | 195.0 | 2.42 | 0.601 | 0.1587 |
| -0.7 | 225.0 | 3.01 | 0.697 | 0.4395 |
| -0.7 | 255.0 | 3.71 | 0.83 | 0.8011 |
| -0.7 | 285.0 | 3.26 | 0.744 | 0.3882 |
| -0.7 | 315.0 | 4.18 | 0.846 | 0.455 |
| -0.7 | 345.0 | 3.93 | 0.78 | 0.1889 |
| -0.5 | 15.0 | 4.09 | 0.905 | 0.7338 |
| -0.5 | 45.0 | 3.38 | 0.703 | 0.3658 |
| -0.5 | 75.0 | 4.59 | 0.887 | 0.1375 |
| -0.5 | 105.0 | 3.92 | 0.787 | 0.9 |
| -0.5 | 135.0 | 4.13 | 0.863 | 0.6012 |
| -0.5 | 165.0 | 2.18 | 0.605 | 0.3683 |
| -0.5 | 195.0 | 1.78 | 0.434 | 0.3065 |
| -0.5 | 225.0 | 2.27 | 0.539 | 0.2284 |
| -0.5 | 255.0 | 4.04 | 0.817 | 0.2555 |
| -0.5 | 285.0 | 3.71 | 0.761 | 1.0256 |
| -0.5 | 315.0 | 5.02 | 0.968 | 0.6787 |
| -0.5 | 345.0 | 2.67 | 0.542 | 0.4397 |
| -0.3 | 15.0 | 2.37 | 0.52 | 0.2405 |
| -0.3 | 45.0 | 3.98 | 0.775 | 0.6006 |
| -0.3 | 75.0 | 6.82 | 1.2 | 0.6175 |
| -0.3 | 105.0 | 4.46 | 0.921 | 0.3435 |
| -0.3 | 135.0 | 4.05 | 0.845 | 0.5838 |
| -0.3 | 165.0 | 2.71 | 0.55 | 0.4562 |
| -0.3 | 195.0 | 3.94 | 0.828 | 0.1566 |
| -0.3 | 225.0 | 3.8 | 0.788 | 0.2815 |
| -0.3 | 255.0 | 3.6 | 0.788 | 0.3315 |
| -0.3 | 285.0 | 7.64 | 1.45 | 0.8779 |
| -0.3 | 315.0 | 6.28 | 1.19 | 0.763 |
| -0.3 | 345.0 | 3.69 | 0.749 | 0.196 |
| -0.1 | 15.0 | 4.22 | 0.866 | 0.818 |
| -0.1 | 45.0 | 4.4 | 0.889 | 0.2416 |
| -0.1 | 75.0 | 5.49 | 0.975 | 0.9363 |
| -0.1 | 105.0 | 4.7 | 0.987 | 0.5899 |
| -0.1 | 135.0 | 6.03 | 1.13 | 0.8664 |
| -0.1 | 165.0 | 3.94 | 0.763 | 0.4463 |
| -0.1 | 195.0 | 3.81 | 0.728 | 0.9236 |
| -0.1 | 225.0 | 4.57 | 0.939 | 0.4662 |
| -0.1 | 255.0 | 8.58 | 1.51 | 0.5071 |
| -0.1 | 285.0 | 10.1 | 1.62 | 0.407 |
| -0.1 | 315.0 | 5.11 | 0.954 | 0.1823 |
| -0.1 | 345.0 | 3.27 | 0.684 | 0.3937 |
| 0.1 | 15.0 | 4.32 | 0.811 | 0.2577 |
| 0.1 | 45.0 | 8.31 | 1.45 | 1.0205 |
| 0.1 | 75.0 | 4.63 | 1.0 | 0.4165 |
| 0.1 | 105.0 | 5.14 | 0.908 | 1.9982 |
| 0.1 | 135.0 | 4.55 | 0.954 | 1.1493 |
| 0.1 | 165.0 | 3.39 | 0.697 | 0.2617 |
| 0.1 | 195.0 | 5.19 | 0.999 | 0.6216 |
| 0.1 | 225.0 | 7.42 | 1.33 | 0.8228 |
| 0.1 | 255.0 | 8.02 | 1.38 | 2.24 |
| 0.1 | 285.0 | 7.67 | 1.29 | 0.77 |
| 0.1 | 315.0 | 5.35 | 0.98 | 0.5547 |
| 0.1 | 345.0 | 2.45 | 0.55 | 0.0618 |
| 0.3 | 15.0 | 2.62 | 0.564 | 0.5141 |
| 0.3 | 45.0 | 2.39 | 0.521 | 0.3915 |
| 0.3 | 75.0 | 9.63 | 1.73 | 0.9336 |
| 0.3 | 105.0 | 6.76 | 1.43 | 0.94 |
| 0.3 | 135.0 | 4.41 | 0.95 | 0.9041 |
| 0.3 | 165.0 | 3.35 | 0.668 | 0.275 |
| 0.3 | 195.0 | 4.44 | 0.817 | 0.4137 |
| 0.3 | 225.0 | 3.93 | 0.803 | 0.6822 |
| 0.3 | 255.0 | 4.36 | 0.919 | 0.2956 |
| 0.3 | 285.0 | 6.3 | 1.17 | 0.6009 |
| 0.3 | 315.0 | 3.85 | 0.762 | 0.0354 |
| 0.3 | 345.0 | 5.63 | 1.11 | 0.2365 |
| 0.5 | 15.0 | 2.19 | 0.477 | 0.0652 |
| 0.5 | 45.0 | 4.55 | 0.977 | 0.3138 |
| 0.5 | 75.0 | 6.53 | 1.28 | 0.3877 |
| 0.5 | 105.0 | 4.14 | 0.911 | 0.8128 |
| 0.5 | 135.0 | 6.1 | 1.14 | 0.4289 |
| 0.5 | 165.0 | 4.16 | 0.787 | 0.6636 |
| 0.5 | 195.0 | 4.1 | 0.792 | 0.6196 |
| 0.5 | 225.0 | 5.8 | 1.26 | 1.1061 |
| 0.5 | 255.0 | 7.43 | 1.56 | 1.222 |
| 0.5 | 285.0 | 4.1 | 0.879 | 0.5054 |
| 0.5 | 315.0 | 3.83 | 0.829 | 0.2662 |
| 0.5 | 345.0 | 2.6 | 0.564 | 0.4599 |
| 0.7 | 15.0 | 4.38 | 1.04 | 0.8206 |
| 0.7 | 45.0 | 4.32 | 0.912 | 0.4772 |
| 0.7 | 75.0 | 5.19 | 1.09 | 0.6221 |
| 0.7 | 105.0 | 8.44 | 1.74 | 1.5507 |
| 0.7 | 135.0 | 3.6 | 0.793 | 0.5356 |
| 0.7 | 165.0 | 5.08 | 0.888 | 0.9426 |
| 0.7 | 195.0 | 4.96 | 0.931 | 0.7862 |
| 0.7 | 225.0 | 5.03 | 1.13 | 0.9324 |
| 0.7 | 255.0 | 6.43 | 1.48 | 1.1026 |
| 0.7 | 285.0 | 5.36 | 1.03 | 0.5016 |
| 0.7 | 315.0 | 3.48 | 0.772 | 0.3962 |
| 0.7 | 345.0 | 2.2 | 0.583 | 0.1969 |
| 0.9 | 15.0 | 2.77 | 0.815 | 0.5221 |
| 0.9 | 45.0 | 3.16 | 0.886 | 1.1829 |
| 0.9 | 75.0 | 4.15 | 1.03 | 0.505 |
| 0.9 | 105.0 | 4.11 | 1.04 | 0.8957 |
| 0.9 | 135.0 | 3.35 | 0.848 | 0.6927 |
| 0.9 | 165.0 | 3.9 | 0.922 | 1.7576 |
| 0.9 | 195.0 | 5.29 | 1.17 | 0.5267 |
| 0.9 | 225.0 | 3.67 | 0.931 | 0.2944 |
| 0.9 | 255.0 | 4.61 | 1.15 | 0.4974 |
| 0.9 | 285.0 | 5.87 | 1.45 | 0.8516 |
| 0.9 | 315.0 | 3.06 | 0.888 | 0.7321 |
| 0.9 | 345.0 | 3.57 | 0.862 | 0.4127 |
Experiment comment: