Measurement E9M92
| 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: | 1.36 GeV | |
| ε: | 0.686 | |
| 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 | 0.755 | 0.25 | 0.0682 |
| -0.9 | 45.0 | 0.327 | 0.142 | 0.1588 |
| -0.9 | 75.0 | 0.824 | 0.32 | 0.103 |
| -0.9 | 105.0 | 1.17 | 0.537 | 0.2844 |
| -0.9 | 135.0 | 0.849 | 0.369 | 0.2838 |
| -0.9 | 165.0 | 1.57 | 0.43 | 0.3097 |
| -0.9 | 195.0 | 1.07 | 0.392 | 0.1394 |
| -0.9 | 225.0 | 0.91 | 0.398 | 0.1193 |
| -0.9 | 255.0 | 1.66 | 0.622 | 0.3147 |
| -0.9 | 285.0 | 1.26 | 0.434 | 0.1699 |
| -0.9 | 315.0 | 1.09 | 0.387 | 0.5136 |
| -0.9 | 345.0 | 0.602 | 0.239 | 0.1325 |
| -0.7 | 15.0 | 1.19 | 0.283 | 0.1994 |
| -0.7 | 45.0 | 2.72 | 0.61 | 0.521 |
| -0.7 | 75.0 | 2.21 | 0.559 | 0.3057 |
| -0.7 | 105.0 | 1.72 | 0.751 | 0.3598 |
| -0.7 | 135.0 | 2.21 | 0.794 | 0.3546 |
| -0.7 | 165.0 | 2.29 | 0.674 | 0.2854 |
| -0.7 | 195.0 | 0.914 | 0.337 | 0.2678 |
| -0.7 | 225.0 | 1.14 | 0.609 | 0.0675 |
| -0.7 | 255.0 | 4.61 | 1.31 | 0.662 |
| -0.7 | 285.0 | 1.98 | 0.493 | 0.374 |
| -0.7 | 315.0 | 2.37 | 0.522 | 0.447 |
| -0.7 | 345.0 | 0.881 | 0.246 | 0.1541 |
| -0.5 | 15.0 | 1.54 | 0.287 | 0.5082 |
| -0.5 | 45.0 | 2.99 | 0.615 | 0.2982 |
| -0.5 | 75.0 | 8.88 | 1.65 | 1.5915 |
| -0.5 | 105.0 | 4.4 | 1.05 | 0.4702 |
| -0.5 | 135.0 | 2.85 | 1.15 | 0.6177 |
| -0.5 | 165.0 | 2.54 | 1.2 | 1.4906 |
| -0.5 | 195.0 | 0.951 | 0.704 | 0.8497 |
| -0.5 | 225.0 | 1.9 | 1.03 | 0.6181 |
| -0.5 | 255.0 | 2.98 | 0.834 | 0.3039 |
| -0.5 | 285.0 | 3.62 | 0.728 | 0.2228 |
| -0.5 | 315.0 | 2.15 | 0.411 | 0.4879 |
| -0.5 | 345.0 | 1.27 | 0.231 | 0.369 |
| -0.3 | 15.0 | 2.1 | 0.345 | 0.253 |
| -0.3 | 45.0 | 4.01 | 0.719 | 0.1539 |
| -0.3 | 75.0 | 2.59 | 0.651 | 0.5039 |
| -0.3 | 105.0 | 7.41 | 1.24 | 0.3619 |
| -0.3 | 135.0 | 3.24 | 0.778 | 0.2884 |
| -0.3 | 165.0 | 2.88 | 1.67 | 1.3938 |
| -0.3 | 195.0 | 0.703 | 0.738 | 0.5459 |
| -0.3 | 225.0 | 4.82 | 1.17 | 0.9969 |
| -0.3 | 255.0 | 5.53 | 0.934 | 0.1785 |
| -0.3 | 285.0 | 4.74 | 0.946 | 0.7387 |
| -0.3 | 315.0 | 3.24 | 0.638 | 0.3663 |
| -0.3 | 345.0 | 2.03 | 0.327 | 0.3161 |
| -0.1 | 15.0 | 1.92 | 0.36 | 0.1374 |
| -0.1 | 45.0 | 2.18 | 0.462 | 0.1328 |
| -0.1 | 75.0 | 5.37 | 0.99 | 0.3078 |
| -0.1 | 105.0 | 4.23 | 0.725 | 0.282 |
| -0.1 | 135.0 | 3.92 | 0.695 | 0.5211 |
| -0.1 | 165.0 | 18.1 | 11.1 | 9.9465 |
| -0.1 | 195.0 | 1.53 | 0.837 | 0.4627 |
| -0.1 | 225.0 | 3.2 | 0.655 | 0.1857 |
| -0.1 | 255.0 | 4.71 | 0.725 | 0.2171 |
| -0.1 | 285.0 | 3.73 | 0.689 | 0.2389 |
| -0.1 | 315.0 | 3.58 | 0.633 | 0.1182 |
| -0.1 | 345.0 | 2.24 | 0.443 | 0.4506 |
| 0.1 | 15.0 | 2.18 | 0.38 | 0.1636 |
| 0.1 | 45.0 | 3.05 | 0.542 | 0.1395 |
| 0.1 | 75.0 | 3.16 | 0.54 | 1.0856 |
| 0.1 | 105.0 | 4.92 | 0.754 | 0.583 |
| 0.1 | 135.0 | 3.83 | 0.662 | 0.1741 |
| 0.1 | 165.0 | 6.54 | 3.32 | 1.9541 |
| 0.1 | 195.0 | 3.6 | 1.95 | 7.3715 |
| 0.1 | 225.0 | 3.25 | 0.557 | 0.3312 |
| 0.1 | 255.0 | 4.96 | 0.763 | 0.4053 |
| 0.1 | 285.0 | 3.14 | 0.647 | 0.1756 |
| 0.1 | 315.0 | 2.2 | 0.384 | 0.3608 |
| 0.1 | 345.0 | 2.2 | 0.383 | 0.0561 |
| 0.3 | 15.0 | 1.88 | 0.328 | 0.0835 |
| 0.3 | 45.0 | 2.73 | 0.503 | 0.4005 |
| 0.3 | 75.0 | 3.79 | 0.676 | 0.0752 |
| 0.3 | 105.0 | 6.19 | 0.873 | 0.3368 |
| 0.3 | 135.0 | 4.11 | 0.8 | 0.3087 |
| 0.3 | 165.0 | 3.43 | 1.73 | 1.3836 |
| 0.3 | 195.0 | 0.817 | 0.615 | 0.4112 |
| 0.3 | 225.0 | 5.1 | 0.914 | 0.4784 |
| 0.3 | 255.0 | 5.69 | 0.922 | 0.9168 |
| 0.3 | 285.0 | 2.91 | 0.556 | 0.1344 |
| 0.3 | 315.0 | 3.18 | 0.563 | 0.2985 |
| 0.3 | 345.0 | 2.6 | 0.431 | 0.1251 |
| 0.5 | 15.0 | 2.52 | 0.443 | 0.3197 |
| 0.5 | 45.0 | 2.43 | 0.448 | 0.2027 |
| 0.5 | 75.0 | 3.04 | 0.548 | 0.1799 |
| 0.5 | 105.0 | 2.54 | 0.441 | 0.3889 |
| 0.5 | 135.0 | 3.47 | 0.715 | 0.6947 |
| 0.5 | 195.0 | 2.4 | 2.78 | 0.72 |
| 0.5 | 225.0 | 2.68 | 0.583 | 0.5126 |
| 0.5 | 255.0 | 3.99 | 0.625 | 0.3365 |
| 0.5 | 285.0 | 1.48 | 0.325 | 0.1229 |
| 0.5 | 315.0 | 1.64 | 0.336 | 0.3826 |
| 0.5 | 345.0 | 2.68 | 0.474 | 0.1565 |
| 0.7 | 15.0 | 2.39 | 0.439 | 0.1636 |
| 0.7 | 45.0 | 2.54 | 0.514 | 0.2889 |
| 0.7 | 75.0 | 1.99 | 0.442 | 0.2647 |
| 0.7 | 105.0 | 1.65 | 0.335 | 0.6545 |
| 0.7 | 135.0 | 2.97 | 0.706 | 0.9445 |
| 0.7 | 165.0 | 2.47 | 3.03 | 7.3232 |
| 0.7 | 195.0 | 2.32 | 1.95 | 0.9532 |
| 0.7 | 225.0 | 2.49 | 0.644 | 0.4286 |
| 0.7 | 255.0 | 2.73 | 0.549 | 0.3627 |
| 0.7 | 285.0 | 3.43 | 0.739 | 0.5665 |
| 0.7 | 315.0 | 1.41 | 0.343 | 0.0229 |
| 0.7 | 345.0 | 1.53 | 0.305 | 0.2679 |
| 0.9 | 15.0 | 1.21 | 0.33 | 0.3045 |
| 0.9 | 45.0 | 1.55 | 0.414 | 0.2571 |
| 0.9 | 75.0 | 1.09 | 0.444 | 0.3341 |
| 0.9 | 105.0 | 0.442 | 0.171 | 0.195 |
| 0.9 | 135.0 | 0.924 | 0.325 | 1.1614 |
| 0.9 | 165.0 | 0.152 | 0.158 | 0.2674 |
| 0.9 | 195.0 | 1.61 | 0.879 | 0.2662 |
| 0.9 | 225.0 | 2.59 | 0.894 | 0.6476 |
| 0.9 | 255.0 | 2.43 | 0.722 | 0.3825 |
| 0.9 | 285.0 | 2.72 | 0.767 | 0.6869 |
| 0.9 | 315.0 | 3.14 | 0.828 | 0.2861 |
| 0.9 | 345.0 | 1.23 | 0.323 | 0.2426 |
Experiment comment: