Measurement E9M226
| 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: | 0.8 — 1.0 GeV2 | |
| W: | 1.14 GeV | |
| ε: | 0.853 | |
| 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 | 0.94 | 0.414 | 0.4271 |
| -0.9 | 45.0 | 1.11 | 0.461 | 0.0935 |
| -0.9 | 75.0 | 1.29 | 0.511 | 0.2626 |
| -0.9 | 105.0 | 0.665 | 0.333 | 0.1564 |
| -0.9 | 135.0 | 1.74 | 0.733 | 0.5936 |
| -0.9 | 165.0 | 1.17 | 0.533 | 0.1641 |
| -0.9 | 195.0 | 1.02 | 0.393 | 0.2599 |
| -0.9 | 225.0 | 2.14 | 0.748 | 0.216 |
| -0.9 | 255.0 | 1.9 | 0.646 | 0.4752 |
| -0.9 | 285.0 | 2.64 | 0.982 | 0.4984 |
| -0.9 | 315.0 | 0.898 | 0.341 | 0.4077 |
| -0.9 | 345.0 | 0.897 | 0.405 | 0.0892 |
| -0.7 | 15.0 | 2.01 | 0.605 | 0.1914 |
| -0.7 | 45.0 | 1.65 | 0.571 | 0.3399 |
| -0.7 | 75.0 | 3.77 | 0.976 | 0.4413 |
| -0.7 | 105.0 | 2.26 | 0.635 | 0.2563 |
| -0.7 | 135.0 | 1.11 | 0.408 | 0.8333 |
| -0.7 | 165.0 | 4.5 | 1.35 | 0.5582 |
| -0.7 | 195.0 | 1.98 | 0.554 | 0.5829 |
| -0.7 | 225.0 | 2.26 | 0.719 | 0.5194 |
| -0.7 | 255.0 | 0.774 | 0.409 | 0.6791 |
| -0.7 | 285.0 | 2.95 | 0.817 | 0.8239 |
| -0.7 | 315.0 | 1.07 | 0.384 | 0.3357 |
| -0.7 | 345.0 | 0.961 | 0.352 | 0.5527 |
| -0.5 | 15.0 | 1.21 | 0.415 | 0.1678 |
| -0.5 | 45.0 | 0.998 | 0.342 | 0.3724 |
| -0.5 | 75.0 | 1.6 | 0.442 | 0.31 |
| -0.5 | 105.0 | 1.44 | 0.422 | 0.2622 |
| -0.5 | 135.0 | 3.21 | 0.743 | 0.2859 |
| -0.5 | 165.0 | 3.41 | 0.861 | 0.484 |
| -0.5 | 195.0 | 2.37 | 0.679 | 0.359 |
| -0.5 | 225.0 | 3.75 | 0.97 | 0.457 |
| -0.5 | 255.0 | 3.24 | 0.773 | 0.2361 |
| -0.5 | 285.0 | 2.91 | 0.755 | 0.7187 |
| -0.5 | 315.0 | 2.34 | 0.739 | 0.2648 |
| -0.5 | 345.0 | 1.89 | 0.586 | 0.1312 |
| -0.3 | 15.0 | 1.36 | 0.389 | 0.5827 |
| -0.3 | 45.0 | 2.87 | 0.83 | 0.4955 |
| -0.3 | 75.0 | 2.4 | 0.653 | 0.4376 |
| -0.3 | 105.0 | 1.8 | 0.537 | 0.1915 |
| -0.3 | 135.0 | 3.35 | 0.794 | 0.538 |
| -0.3 | 165.0 | 2.21 | 0.539 | 0.5816 |
| -0.3 | 195.0 | 2.11 | 0.503 | 0.0955 |
| -0.3 | 225.0 | 1.56 | 0.471 | 0.4383 |
| -0.3 | 255.0 | 3.11 | 0.73 | 0.2699 |
| -0.3 | 285.0 | 1.78 | 0.446 | 0.1128 |
| -0.3 | 315.0 | 1.44 | 0.385 | 0.1629 |
| -0.3 | 345.0 | 2.78 | 0.962 | 0.7631 |
| -0.1 | 15.0 | 1.45 | 0.401 | 0.2065 |
| -0.1 | 45.0 | 2.33 | 0.634 | 0.2232 |
| -0.1 | 75.0 | 2.08 | 0.509 | 0.188 |
| -0.1 | 105.0 | 1.68 | 0.515 | 0.162 |
| -0.1 | 135.0 | 2.22 | 0.578 | 0.3397 |
| -0.1 | 165.0 | 3.17 | 0.748 | 0.4779 |
| -0.1 | 195.0 | 2.55 | 0.584 | 0.1173 |
| -0.1 | 225.0 | 4.03 | 0.921 | 0.808 |
| -0.1 | 255.0 | 2.76 | 0.663 | 0.1808 |
| -0.1 | 285.0 | 2.78 | 0.683 | 0.135 |
| -0.1 | 315.0 | 1.17 | 0.353 | 0.4119 |
| -0.1 | 345.0 | 1.24 | 0.375 | 0.3766 |
| 0.1 | 15.0 | 1.91 | 0.565 | 0.1553 |
| 0.1 | 45.0 | 0.723 | 0.246 | 0.2543 |
| 0.1 | 75.0 | 2.01 | 0.553 | 0.1756 |
| 0.1 | 105.0 | 2.74 | 0.773 | 0.227 |
| 0.1 | 135.0 | 3.7 | 0.814 | 0.4362 |
| 0.1 | 165.0 | 4.79 | 1.03 | 0.3287 |
| 0.1 | 195.0 | 5.12 | 1.09 | 0.5087 |
| 0.1 | 225.0 | 4.16 | 0.852 | 0.2315 |
| 0.1 | 255.0 | 1.18 | 0.369 | 0.0886 |
| 0.1 | 285.0 | 2.89 | 0.673 | 0.2761 |
| 0.1 | 315.0 | 1.25 | 0.364 | 0.3808 |
| 0.1 | 345.0 | 1.7 | 0.481 | 0.0335 |
| 0.3 | 15.0 | 2.08 | 0.557 | 0.1484 |
| 0.3 | 45.0 | 2.23 | 0.58 | 0.4193 |
| 0.3 | 75.0 | 3.03 | 0.811 | 0.6885 |
| 0.3 | 105.0 | 8.02 | 1.59 | 1.6104 |
| 0.3 | 135.0 | 1.78 | 0.421 | 0.2906 |
| 0.3 | 165.0 | 2.83 | 0.634 | 0.2673 |
| 0.3 | 195.0 | 4.44 | 0.912 | 0.4788 |
| 0.3 | 225.0 | 2.85 | 0.57 | 0.5337 |
| 0.3 | 255.0 | 2.25 | 0.566 | 0.243 |
| 0.3 | 285.0 | 2.76 | 0.613 | 0.1069 |
| 0.3 | 315.0 | 1.95 | 0.516 | 0.062 |
| 0.3 | 345.0 | 0.675 | 0.21 | 0.1378 |
| 0.5 | 15.0 | 1.27 | 0.34 | 0.5078 |
| 0.5 | 45.0 | 2.03 | 0.511 | 0.1998 |
| 0.5 | 75.0 | 2.03 | 0.477 | 0.5912 |
| 0.5 | 105.0 | 3.13 | 0.731 | 0.2609 |
| 0.5 | 135.0 | 2.7 | 0.638 | 0.4686 |
| 0.5 | 165.0 | 5.51 | 1.06 | 0.7064 |
| 0.5 | 195.0 | 4.73 | 0.949 | 0.4367 |
| 0.5 | 225.0 | 3.47 | 0.793 | 0.522 |
| 0.5 | 255.0 | 3.23 | 0.695 | 0.3664 |
| 0.5 | 285.0 | 2.19 | 0.582 | 0.3173 |
| 0.5 | 315.0 | 2.53 | 0.636 | 0.1932 |
| 0.5 | 345.0 | 1.61 | 0.547 | 0.0875 |
| 0.7 | 15.0 | 1.2 | 0.328 | 0.3725 |
| 0.7 | 45.0 | 2.05 | 0.511 | 0.2971 |
| 0.7 | 75.0 | 2.75 | 0.649 | 0.557 |
| 0.7 | 105.0 | 2.54 | 0.622 | 0.2797 |
| 0.7 | 135.0 | 3.65 | 0.847 | 0.4987 |
| 0.7 | 165.0 | 4.03 | 0.881 | 0.9335 |
| 0.7 | 195.0 | 5.56 | 1.46 | 1.5771 |
| 0.7 | 225.0 | 4.73 | 1.03 | 0.6638 |
| 0.7 | 255.0 | 3.02 | 0.667 | 0.5638 |
| 0.7 | 285.0 | 3.31 | 0.727 | 0.1596 |
| 0.7 | 315.0 | 1.62 | 0.451 | 0.25 |
| 0.7 | 345.0 | 0.957 | 0.295 | 0.2332 |
| 0.9 | 15.0 | 2.11 | 0.592 | 0.4783 |
| 0.9 | 45.0 | 2.41 | 0.702 | 0.3606 |
| 0.9 | 75.0 | 2.47 | 0.653 | 0.6039 |
| 0.9 | 105.0 | 2.63 | 0.709 | 0.3703 |
| 0.9 | 135.0 | 2.83 | 0.837 | 0.37 |
| 0.9 | 165.0 | 3.51 | 1.05 | 1.465 |
| 0.9 | 195.0 | 4.72 | 1.23 | 0.4879 |
| 0.9 | 225.0 | 3.12 | 0.823 | 0.4862 |
| 0.9 | 255.0 | 3.8 | 1.02 | 0.6223 |
| 0.9 | 285.0 | 4.65 | 1.32 | 1.3086 |
| 0.9 | 315.0 | 3.16 | 1.03 | 0.8108 |
| 0.9 | 345.0 | 3.41 | 0.959 | 0.6914 |
Experiment comment: