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Experiment: E89-038 CLAS experiment, 1999
Spokespersons: V. Burkert, R. Minehart
Experiment comment: Beam energy 1.515 GeV. Global 5.8% scaling systematic uncertainty for all data points
Measurement comment: Global 5.8% scaling systematic uncertainty
Publication:
	Quantity measured: dσ/dΩ, mcbn/sterad
	
	
	Differential cross section.
	
	
	Beam: e, polarization: none
	
	Target: p (Z=1, A=1), polarization: none
	
	Final state: π+n, polarization: none
	
| Q2 : | 0.25 — 0.35 GeV2 | |
|---|---|---|
| W : | 1.26 — 1.28 GeV | |
| Ebeam : | 1.515 GeV | 
| Select data slice: θπ = deg Fit φ dependence: | Observable quantity measured (Y axis): dσ/dΩ, mcbn/sterad Parameter (X axis): φπ, deg | 
Click here to get data in text file, delimited with tabs.
Click here to get calculated fit coefficients in text file, delimited with tabs.
Measured data:
| θπ, deg | φπ, deg | dσ/dΩ, mcbn/sterad | Data errors, mcbn/sterad | Systematic errors, mcbn/sterad | 
|---|---|---|---|---|
| 7.5 | 15 | 18.52 | 2.417 | 4.127 | 
| 7.5 | 165 | 13.5 | 2.217 | 4.04 | 
| 7.5 | 195 | 16.54 | 1.771 | 4.071 | 
| 7.5 | 225 | 16.3 | 3.091 | 4.04 | 
| 7.5 | 315 | 10.65 | 1.702 | 4.043 | 
| 7.5 | 345 | 21.06 | 3.302 | 4.086 | 
| 22.5 | 15 | 15.51 | 1.083 | 1.244 | 
| 22.5 | 45 | 15.68 | 2.91 | 1.267 | 
| 22.5 | 105 | 15.53 | 1.576 | 1.21 | 
| 22.5 | 135 | 15.98 | 0.7567 | 1.209 | 
| 22.5 | 165 | 14.49 | 0.6866 | 1.187 | 
| 22.5 | 195 | 16.96 | 0.7949 | 1.215 | 
| 22.5 | 225 | 14.85 | 0.7112 | 1.18 | 
| 22.5 | 255 | 16.46 | 1.489 | 1.229 | 
| 22.5 | 315 | 17.19 | 3.087 | 1.354 | 
| 22.5 | 345 | 17.66 | 1.286 | 1.217 | 
| 37.5 | 105 | 18.29 | 2.541 | 1.19 | 
| 37.5 | 135 | 13.87 | 0.6455 | 1.066 | 
| 37.5 | 165 | 12.28 | 0.4977 | 1.044 | 
| 37.5 | 195 | 12.5 | 0.5212 | 1.048 | 
| 37.5 | 225 | 15.29 | 0.756 | 1.1 | 
| 37.5 | 255 | 14.89 | 1.503 | 1.123 | 
| 52.5 | 45 | 11.49 | 1.183 | 0.9785 | 
| 52.5 | 75 | 14.42 | 1.508 | 1.048 | 
| 52.5 | 105 | 16.36 | 0.8052 | 1.068 | 
| 52.5 | 135 | 13.96 | 0.9588 | 1.012 | 
| 52.5 | 165 | 10.36 | 0.4231 | 0.9453 | 
| 52.5 | 195 | 10.34 | 0.4218 | 0.946 | 
| 52.5 | 225 | 14.76 | 1.161 | 1.03 | 
| 52.5 | 255 | 14.71 | 0.752 | 1.054 | 
| 52.5 | 285 | 14.97 | 1.051 | 1.041 | 
| 52.5 | 315 | 11.76 | 0.9932 | 0.9972 | 
| 67.5 | 75 | 13.65 | 0.4755 | 0.9335 | 
| 67.5 | 105 | 14.17 | 0.5128 | 0.9459 | 
| 67.5 | 135 | 10.5 | 0.7246 | 0.8529 | 
| 67.5 | 165 | 8.56 | 0.4188 | 0.8249 | 
| 67.5 | 195 | 7.766 | 0.3899 | 0.8176 | 
| 67.5 | 225 | 12.87 | 1.263 | 0.9067 | 
| 67.5 | 255 | 15.53 | 0.5502 | 0.975 | 
| 67.5 | 285 | 13.98 | 0.4799 | 0.9313 | 
| 82.5 | 45 | 8.085 | 0.7892 | 0.7494 | 
| 82.5 | 75 | 12.24 | 0.5207 | 0.8392 | 
| 82.5 | 105 | 14.43 | 0.5024 | 0.9067 | 
| 82.5 | 135 | 11.65 | 0.9412 | 0.8256 | 
| 82.5 | 165 | 6.77 | 0.3061 | 0.732 | 
| 82.5 | 195 | 8.055 | 0.3706 | 0.7498 | 
| 82.5 | 225 | 10.84 | 0.77 | 0.815 | 
| 82.5 | 255 | 13.62 | 0.4729 | 0.8857 | 
| 82.5 | 285 | 12.39 | 0.5362 | 0.845 | 
| 82.5 | 315 | 8.93 | 0.8875 | 0.7547 | 
| 97.5 | 15 | 4.303 | 0.5456 | 0.543 | 
| 97.5 | 45 | 7.448 | 0.3566 | 0.5994 | 
| 97.5 | 75 | 10.63 | 0.7316 | 0.6782 | 
| 97.5 | 105 | 10.99 | 0.4286 | 0.6765 | 
| 97.5 | 135 | 9.131 | 0.849 | 0.6304 | 
| 97.5 | 165 | 5.548 | 0.3193 | 0.5653 | 
| 97.5 | 195 | 5.988 | 0.3477 | 0.5919 | 
| 97.5 | 225 | 8.81 | 0.5945 | 0.6387 | 
| 97.5 | 255 | 12.06 | 0.4366 | 0.708 | 
| 97.5 | 285 | 9.056 | 0.5445 | 0.6312 | 
| 97.5 | 315 | 7.376 | 0.35 | 0.5982 | 
| 97.5 | 345 | 4.2 | 0.4858 | 0.5445 | 
| 112.5 | 15 | 3.626 | 0.3267 | 0.496 | 
| 112.5 | 45 | 6.096 | 0.3196 | 0.5366 | 
| 112.5 | 75 | 8.281 | 0.5679 | 0.5917 | 
| 112.5 | 105 | 8.591 | 0.363 | 0.6017 | 
| 112.5 | 135 | 8.257 | 0.9242 | 0.5797 | 
| 112.5 | 165 | 5.71 | 0.549 | 0.5288 | 
| 112.5 | 195 | 5.649 | 0.6982 | 0.5187 | 
| 112.5 | 225 | 6.032 | 0.4247 | 0.5482 | 
| 112.5 | 255 | 9.23 | 0.3788 | 0.6156 | 
| 112.5 | 285 | 9.446 | 0.6355 | 0.6173 | 
| 112.5 | 315 | 5.841 | 0.3326 | 0.5334 | 
| 112.5 | 345 | 4.045 | 0.3649 | 0.5031 | 
| 127.5 | 15 | 4.177 | 0.5725 | 0.5039 | 
| 127.5 | 45 | 4.928 | 0.3124 | 0.5165 | 
| 127.5 | 75 | 6.543 | 0.432 | 0.5609 | 
| 127.5 | 105 | 6.508 | 0.5261 | 0.5598 | 
| 127.5 | 135 | 5.307 | 0.4765 | 0.5367 | 
| 127.5 | 225 | 4.56 | 0.3696 | 0.5187 | 
| 127.5 | 255 | 7.348 | 0.715 | 0.5712 | 
| 127.5 | 285 | 6.695 | 0.5121 | 0.5534 | 
| 127.5 | 315 | 5.508 | 0.3493 | 0.5269 | 
| 127.5 | 345 | 3.165 | 0.3307 | 0.4944 | 
| 142.5 | 15 | 3.296 | 0.342 | 0.3538 | 
| 142.5 | 45 | 3.598 | 0.3483 | 0.3653 | 
| 142.5 | 75 | 4.922 | 0.3264 | 0.3889 | 
| 142.5 | 285 | 4.993 | 0.3721 | 0.4036 | 
| 142.5 | 315 | 3.79 | 0.4173 | 0.3637 | 
| 142.5 | 345 | 2.895 | 0.2927 | 0.3477 | 
| 157.5 | 15 | 2.582 | 0.3658 | 0.3452 | 
| 157.5 | 345 | 2.485 | 0.3308 | 0.3447 |