Measurement E9M176
| 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: | 0.6 — 0.7 GeV2 | |
| W: | 1.34 GeV | |
| ε: | 0.849 | |
| 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 | 0.813 | 0.366 | 0.4144 |
| -0.9 | 45.0 | 1.33 | 0.422 | 0.2815 |
| -0.9 | 75.0 | 1.15 | 0.43 | 0.2386 |
| -0.9 | 105.0 | 1.48 | 0.47 | 0.2373 |
| -0.9 | 135.0 | 1.04 | 0.391 | 0.1899 |
| -0.9 | 165.0 | 2.28 | 0.599 | 0.7127 |
| -0.9 | 195.0 | 1.13 | 0.41 | 0.109 |
| -0.9 | 225.0 | 2.17 | 0.666 | 0.3208 |
| -0.9 | 255.0 | 1.33 | 0.413 | 0.2761 |
| -0.9 | 285.0 | 0.488 | 0.257 | 0.1933 |
| -0.9 | 315.0 | 2.54 | 0.907 | 0.802 |
| -0.9 | 345.0 | 1.29 | 0.433 | 0.2942 |
| -0.7 | 15.0 | 1.57 | 0.399 | 0.1161 |
| -0.7 | 45.0 | 3.34 | 0.689 | 0.4685 |
| -0.7 | 75.0 | 1.88 | 0.485 | 0.362 |
| -0.7 | 105.0 | 1.91 | 0.586 | 0.2933 |
| -0.7 | 135.0 | 2.14 | 0.566 | 0.4514 |
| -0.7 | 165.0 | 1.18 | 0.35 | 0.1936 |
| -0.7 | 195.0 | 1.94 | 0.527 | 0.2115 |
| -0.7 | 225.0 | 2.74 | 0.648 | 0.1558 |
| -0.7 | 255.0 | 2.12 | 0.679 | 0.159 |
| -0.7 | 285.0 | 3.69 | 0.763 | 0.2009 |
| -0.7 | 315.0 | 2.4 | 0.576 | 0.2507 |
| -0.7 | 345.0 | 1.72 | 0.429 | 0.4571 |
| -0.5 | 15.0 | 2.57 | 0.488 | 0.2959 |
| -0.5 | 45.0 | 2.96 | 0.527 | 0.1664 |
| -0.5 | 75.0 | 3.42 | 0.771 | 0.3961 |
| -0.5 | 105.0 | 6.21 | 1.96 | 1.1924 |
| -0.5 | 135.0 | 4.74 | 1.94 | 0.7817 |
| -0.5 | 165.0 | 2.65 | 0.734 | 0.4402 |
| -0.5 | 195.0 | 1.71 | 0.49 | 0.3482 |
| -0.5 | 225.0 | 6.94 | 2.46 | 3.0973 |
| -0.5 | 255.0 | 3.56 | 1.26 | 0.4921 |
| -0.5 | 285.0 | 4.74 | 1.02 | 0.4772 |
| -0.5 | 315.0 | 3.85 | 0.652 | 0.3476 |
| -0.5 | 345.0 | 1.92 | 0.417 | 0.2743 |
| -0.3 | 15.0 | 2.26 | 0.42 | 0.278 |
| -0.3 | 45.0 | 3.52 | 0.544 | 0.2018 |
| -0.3 | 75.0 | 3.48 | 0.986 | 1.2854 |
| -0.3 | 105.0 | 1.28 | 0.947 | 1.0025 |
| -0.3 | 135.0 | 2.21 | 1.7 | 3.0894 |
| -0.3 | 165.0 | 2.38 | 0.838 | 0.3521 |
| -0.3 | 195.0 | 1.58 | 0.55 | 0.1982 |
| -0.3 | 225.0 | 10.8 | 6.02 | 2.0662 |
| -0.3 | 255.0 | 3.45 | 1.87 | 1.7272 |
| -0.3 | 285.0 | 3.96 | 1.02 | 0.316 |
| -0.3 | 315.0 | 2.98 | 0.502 | 0.1876 |
| -0.3 | 345.0 | 2.91 | 0.493 | 0.2525 |
| -0.1 | 15.0 | 2.1 | 0.418 | 0.2125 |
| -0.1 | 45.0 | 3.72 | 0.591 | 0.2609 |
| -0.1 | 75.0 | 5.28 | 1.49 | 0.2888 |
| -0.1 | 105.0 | 2.98 | 1.14 | 0.5585 |
| -0.1 | 135.0 | 2.52 | 1.13 | 1.7334 |
| -0.1 | 165.0 | 2.25 | 0.94 | 1.241 |
| -0.1 | 195.0 | 5.89 | 2.54 | 1.7313 |
| -0.1 | 225.0 | 4.64 | 2.23 | 1.1983 |
| -0.1 | 255.0 | 5.18 | 1.77 | 0.634 |
| -0.1 | 285.0 | 5.43 | 1.41 | 1.0849 |
| -0.1 | 315.0 | 5.17 | 0.787 | 0.3692 |
| -0.1 | 345.0 | 2.09 | 0.402 | 0.1321 |
| 0.1 | 15.0 | 2.57 | 0.508 | 0.0735 |
| 0.1 | 45.0 | 3.08 | 0.546 | 0.3821 |
| 0.1 | 75.0 | 5.69 | 1.85 | 1.1573 |
| 0.1 | 105.0 | 7.41 | 1.7 | 0.6349 |
| 0.1 | 135.0 | 4.33 | 1.21 | 0.3461 |
| 0.1 | 165.0 | 4.44 | 2.16 | 1.9173 |
| 0.1 | 195.0 | 4.25 | 2.5 | 1.2326 |
| 0.1 | 225.0 | 6.06 | 1.78 | 0.8351 |
| 0.1 | 255.0 | 6.58 | 1.43 | 1.0405 |
| 0.1 | 285.0 | 5.72 | 1.57 | 0.6259 |
| 0.1 | 315.0 | 3.69 | 0.578 | 0.1084 |
| 0.1 | 345.0 | 2.35 | 0.459 | 0.0339 |
| 0.3 | 15.0 | 2.17 | 0.416 | 0.0797 |
| 0.3 | 45.0 | 2.9 | 0.532 | 0.3023 |
| 0.3 | 75.0 | 2.77 | 0.951 | 0.3003 |
| 0.3 | 105.0 | 5.28 | 1.15 | 0.9884 |
| 0.3 | 135.0 | 4.81 | 1.17 | 0.7017 |
| 0.3 | 165.0 | 5.86 | 4.79 | 2.1138 |
| 0.3 | 195.0 | 2.15 | 1.23 | 1.2815 |
| 0.3 | 225.0 | 3.84 | 1.14 | 0.6237 |
| 0.3 | 255.0 | 6.32 | 1.34 | 0.5502 |
| 0.3 | 285.0 | 3.86 | 1.16 | 0.3694 |
| 0.3 | 315.0 | 2.29 | 0.427 | 0.3106 |
| 0.3 | 345.0 | 1.93 | 0.39 | 0.1193 |
| 0.5 | 15.0 | 1.11 | 0.276 | 0.0335 |
| 0.5 | 45.0 | 2.46 | 0.47 | 0.5622 |
| 0.5 | 75.0 | 2.51 | 0.856 | 0.5728 |
| 0.5 | 105.0 | 2.87 | 0.597 | 1.3891 |
| 0.5 | 135.0 | 5.87 | 1.41 | 1.1669 |
| 0.5 | 195.0 | 4.68 | 3.58 | 1.6746 |
| 0.5 | 225.0 | 3.21 | 0.793 | 0.6521 |
| 0.5 | 255.0 | 4.49 | 0.98 | 0.3978 |
| 0.5 | 285.0 | 2.66 | 0.802 | 0.5554 |
| 0.5 | 315.0 | 3.37 | 0.643 | 0.421 |
| 0.5 | 345.0 | 2.07 | 0.495 | 0.1397 |
| 0.7 | 15.0 | 2.03 | 0.489 | 0.3254 |
| 0.7 | 45.0 | 2.92 | 0.625 | 0.3088 |
| 0.7 | 75.0 | 1.74 | 0.652 | 0.2322 |
| 0.7 | 105.0 | 2.32 | 0.671 | 0.2475 |
| 0.7 | 135.0 | 1.78 | 0.748 | 0.3889 |
| 0.7 | 165.0 | 3.69 | 2.12 | 1.5132 |
| 0.7 | 195.0 | 0.73 | 0.469 | 0.3033 |
| 0.7 | 225.0 | 1.39 | 0.48 | 0.7647 |
| 0.7 | 255.0 | 2.6 | 0.789 | 0.199 |
| 0.7 | 285.0 | 2.11 | 0.735 | 0.7773 |
| 0.7 | 315.0 | 1.95 | 0.463 | 0.1804 |
| 0.7 | 345.0 | 1.06 | 0.301 | 0.0638 |
| 0.9 | 15.0 | 1.1 | 0.331 | 0.4394 |
| 0.9 | 45.0 | 1.37 | 0.379 | 0.948 |
| 0.9 | 75.0 | 1.26 | 0.467 | 0.3766 |
| 0.9 | 105.0 | 1.71 | 0.662 | 0.3297 |
| 0.9 | 135.0 | 0.614 | 0.339 | 0.3026 |
| 0.9 | 165.0 | 1.55 | 0.782 | 0.5985 |
| 0.9 | 195.0 | 2.38 | 1.12 | 0.7295 |
| 0.9 | 225.0 | 5.2 | 4.51 | 3.5405 |
| 0.9 | 255.0 | 1.17 | 0.404 | 0.7498 |
| 0.9 | 285.0 | 1.12 | 0.365 | 0.3024 |
| 0.9 | 315.0 | 1.5 | 0.447 | 0.2631 |
| 0.9 | 345.0 | 2.01 | 0.634 | 0.6095 |
Experiment comment: