Measurement E151M845
| Experiment: | EG4 | |
|---|---|---|
| Year: | 2016 | |
| Spokesperson: | Xiaochao Zheng | |
| Reaction: | ep → π+n | |
| Polarization: | beam (longitudinal), target (longitudinal) | |
| Quantity: | AUL | |
| εL: | 0.0776 | |
| Q2: | 0.0496 GeV2 | |
| W: | 1505.0 GeV | |
| Ebeam: | 2.2596 GeV | |
| ε: | 0.914 | |
| cos(θπ+) | φ(π+), [deg] | AUL | uncertainty |
|---|---|---|---|
| 0.25 | 66.0 | 3.0408 | 1.5109 |
| 0.25 | 78.0 | 1.0201 | 0.4929 |
| 0.35 | 54.0 | 1.0764 | 1.4302 |
| 0.35 | 66.0 | -0.2604 | 1.088 |
| 0.35 | 78.0 | -2.0977 | 0.8439 |
| 0.35 | 90.0 | -2.1145 | 1.1336 |
| 0.35 | 270.0 | -0.004 | 1.0437 |
| 0.35 | 282.0 | 0.2355 | 0.9514 |
| 0.35 | 294.0 | 1.3602 | 1.1866 |
| 0.45 | 66.0 | -0.0042 | 1.0437 |
| 0.45 | 78.0 | 2.165 | 1.132 |
| 0.45 | 90.0 | -0.4541 | 1.3111 |
| 0.45 | 114.0 | -0.4941 | 1.6443 |
| 0.45 | 258.0 | -1.8041 | 1.0101 |
| 0.45 | 270.0 | -0.0669 | 0.9191 |
| 0.45 | 282.0 | 0.724 | 0.921 |
| 0.45 | 294.0 | 0.0141 | 1.0445 |
| 0.55 | 78.0 | 0.9654 | 1.2837 |
| 0.55 | 102.0 | 3.2141 | 1.8971 |
| 0.55 | 114.0 | 0.5095 | 1.2225 |
| 0.55 | 126.0 | -1.0191 | 1.1189 |
| 0.55 | 138.0 | -1.0886 | 1.2519 |
| 0.55 | 222.0 | 0.5013 | 1.3441 |
| 0.55 | 246.0 | 1.2412 | 1.4418 |
| 0.55 | 258.0 | 1.0816 | 1.4503 |
| 0.55 | 270.0 | 0.9007 | 0.9965 |
| 0.55 | 282.0 | 1.6595 | 0.9121 |
| 0.55 | 294.0 | -0.5933 | 1.0788 |
| 0.65 | 66.0 | -0.8806 | 1.2952 |
| 0.65 | 78.0 | 0.4946 | 1.4972 |
| 0.65 | 102.0 | -2.4419 | 1.2156 |
| 0.65 | 114.0 | 2.1171 | 1.2987 |
| 0.65 | 126.0 | 0.8545 | 1.1314 |
| 0.65 | 138.0 | -0.1953 | 1.3461 |
| 0.65 | 150.0 | -3.6262 | 1.093 |
| 0.65 | 198.0 | -0.7345 | 1.3087 |
| 0.65 | 210.0 | 0.7348 | 1.3291 |
| 0.65 | 222.0 | 0.722 | 1.0159 |
| 0.65 | 234.0 | 2.2263 | 1.4006 |
| 0.65 | 246.0 | -0.8343 | 1.1141 |
| 0.65 | 258.0 | 2.5845 | 1.4066 |
| 0.65 | 270.0 | -0.8694 | 1.113 |
| 0.65 | 282.0 | 1.6782 | 1.4371 |
| 0.65 | 294.0 | -0.0538 | 1.1562 |
| 0.75 | 66.0 | -0.3575 | 1.6895 |
| 0.75 | 102.0 | 1.7766 | 1.7922 |
| 0.75 | 114.0 | -0.9996 | 1.2301 |
| 0.75 | 126.0 | 0.7423 | 1.2243 |
| 0.75 | 138.0 | -0.5067 | 1.4199 |
| 0.75 | 150.0 | -0.9733 | 1.3345 |
| 0.75 | 210.0 | -0.7871 | 1.2802 |
| 0.75 | 222.0 | 0.4044 | 1.2999 |
| 0.75 | 234.0 | 0.0822 | 1.216 |
| 0.75 | 246.0 | 1.8603 | 1.341 |
| 0.75 | 282.0 | 1.1127 | 0.9889 |
| 0.75 | 294.0 | 1.4339 | 1.2855 |
| 0.85 | 90.0 | -0.6467 | 1.8871 |
| 0.85 | 102.0 | -2.9104 | 1.3968 |
| 0.85 | 114.0 | -2.2675 | 1.5759 |
| 0.85 | 198.0 | 0.9274 | 1.6835 |
| 0.85 | 210.0 | 0.5248 | 1.802 |
| 0.85 | 222.0 | 4.7246 | 1.5635 |
| 0.85 | 234.0 | 1.3415 | 1.2857 |
| 0.85 | 246.0 | 2.4472 | 1.5108 |
| 0.85 | 258.0 | 1.2722 | 1.6709 |
| 0.95 | 234.0 | -0.0283 | 4.3675 |
| 0.25 | 282.0 | 1.2071 | 0.6181 |
| 0.25 | 294.0 | 0.7105 | 0.6234 |
| 0.35 | 66.0 | -0.4061 | 0.3874 |
| 0.35 | 78.0 | -0.1666 | 0.4121 |
| 0.35 | 90.0 | -0.6134 | 0.5317 |
| 0.35 | 270.0 | -0.2157 | 0.4814 |
| 0.35 | 282.0 | -0.1394 | 0.3765 |
| 0.35 | 294.0 | -0.0214 | 0.447 |
| 0.45 | 66.0 | 0.2609 | 0.4734 |
| 0.45 | 78.0 | -0.3786 | 0.3729 |
| 0.45 | 90.0 | -0.1359 | 0.4247 |
| 0.45 | 102.0 | -0.9315 | 0.502 |
| 0.45 | 114.0 | -0.5521 | 0.4649 |
| 0.45 | 258.0 | 0.9872 | 0.6285 |
| 0.45 | 270.0 | -0.5483 | 0.3744 |
| 0.45 | 282.0 | 0.6306 | 0.3383 |
| 0.45 | 294.0 | 0.7143 | 0.5282 |
| 0.55 | 66.0 | 0.2703 | 0.5837 |
| 0.55 | 78.0 | 0.4682 | 0.429 |
| 0.55 | 90.0 | -0.2055 | 0.4412 |
| 0.55 | 114.0 | -0.133 | 0.4862 |
| 0.55 | 126.0 | -0.1339 | 0.522 |
| 0.55 | 138.0 | 0.0225 | 0.5429 |
| 0.55 | 150.0 | -0.5206 | 0.6601 |
| 0.55 | 210.0 | 0.8924 | 0.6435 |
| 0.55 | 234.0 | -0.137 | 0.6149 |
| 0.55 | 246.0 | 1.7057 | 0.633 |
| 0.55 | 258.0 | 0.2589 | 0.4654 |
| 0.55 | 270.0 | 0.2905 | 0.3914 |
| 0.55 | 282.0 | 0.3703 | 0.3992 |
| 0.65 | 66.0 | -0.9671 | 0.3833 |
| 0.65 | 78.0 | -0.4473 | 0.4039 |
| 0.65 | 114.0 | -0.4114 | 0.3882 |
| 0.65 | 126.0 | -1.1433 | 0.3548 |
| 0.65 | 138.0 | -0.7775 | 0.4033 |
| 0.65 | 150.0 | -0.5449 | 0.5584 |
| 0.65 | 186.0 | 0.2462 | 0.736 |
| 0.65 | 198.0 | 2.1316 | 0.6775 |
| 0.65 | 210.0 | 0.9423 | 0.5288 |
| 0.65 | 222.0 | 0.5598 | 0.5 |
| 0.65 | 234.0 | 0.5062 | 0.4164 |
| 0.65 | 246.0 | 0.5341 | 0.5421 |
| 0.65 | 258.0 | -0.7791 | 0.4529 |
| 0.65 | 270.0 | 0.5645 | 0.4644 |
| 0.65 | 282.0 | 0.3852 | 0.6324 |
| 0.65 | 294.0 | -0.399 | 0.4041 |
| 0.75 | 102.0 | 0.0162 | 0.5855 |
| 0.75 | 114.0 | 0.0398 | 0.4674 |
| 0.75 | 126.0 | -0.79 | 0.4025 |
| 0.75 | 138.0 | 0.0745 | 0.5484 |
| 0.75 | 150.0 | 0.9103 | 0.6806 |
| 0.75 | 186.0 | -0.622 | 0.6974 |
| 0.75 | 198.0 | 1.825 | 0.6133 |
| 0.75 | 210.0 | 1.9444 | 0.572 |
| 0.75 | 222.0 | 0.323 | 0.4776 |
| 0.75 | 234.0 | 0.7483 | 0.4989 |
| 0.75 | 246.0 | 1.557 | 0.5499 |
| 0.75 | 282.0 | 0.4988 | 0.411 |
| 0.75 | 294.0 | 0.2721 | 0.5412 |
| 0.85 | 90.0 | 0.235 | 0.656 |
| 0.85 | 102.0 | 0.4649 | 0.5638 |
| 0.85 | 114.0 | -0.3549 | 0.5365 |
| 0.85 | 126.0 | -1.1946 | 0.5289 |
| 0.85 | 186.0 | 0.8922 | 0.8864 |
| 0.85 | 210.0 | -0.9872 | 0.5731 |
| 0.85 | 222.0 | 0.4759 | 0.5538 |
| 0.85 | 234.0 | -0.233 | 0.4866 |
| 0.85 | 246.0 | 0.0302 | 0.533 |
| 0.85 | 258.0 | 0.2382 | 0.6825 |
| 0.95 | 210.0 | 0.3143 | 1.1877 |
| 0.95 | 222.0 | 1.9222 | 1.0808 |
| 0.95 | 234.0 | 2.4556 | 1.1053 |
Experiment comment: