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Measurement E8M81

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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 : 0.55 — 0.65 GeV2
W : 1.34 — 1.36 GeV
Ebeam : 1.515 GeV

Select data slice:
θπ = deg

Fit φ dependence:

 Observable quantity measured (Y axis): dσ/dΩ, mcbn/sterad
Plot measurement data

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 11.92 2.349 1.682
7.5 45 7.857 1.834 1.623
7.5 75 8.72 1.696 1.632
7.5 105 9.508 1.748 1.633
7.5 135 15.75 4.144 1.786
7.5 165 17.21 5.903 1.699
7.5 195 12.4 2.501 1.663
7.5 225 9.506 2.683 1.626
7.5 255 9.846 2.427 1.651
7.5 285 8.175 1.59 1.616
7.5 315 12.74 2.941 1.71
7.5 345 8.782 1.764 1.688
22.5 15 10.32 2.142 0.8592
22.5 45 8.819 1.925 0.8514
22.5 75 8.418 1.354 0.843
22.5 105 9.637 2.729 0.8443
22.5 135 7.045 2.103 0.853
22.5 225 8.935 2.415 0.8988
22.5 255 10.31 2.213 0.8444
22.5 285 8.919 1.61 0.8768
22.5 315 6.581 2.134 0.8124
22.5 345 8.523 1.321 0.8489
37.5 45 7.166 1.131 1.089
37.5 75 8.397 1.337 1.122
37.5 165 5.18 1.321 1.082
37.5 285 9.211 1.302 1.119
37.5 315 6.706 1.382 1.105
52.5 45 7.121 1.733 0.7382
52.5 75 5.567 0.7447 0.7033
52.5 135 4.992 0.4661 0.699
52.5 165 3.927 0.2863 0.6907
52.5 195 4.98 0.3452 0.6972
52.5 225 6.175 0.5346 0.7147
52.5 285 7.473 1.364 0.7426
52.5 315 5.59 0.6538 0.7035
67.5 45 4.027 1.119 0.3766
67.5 75 5.429 2.043 0.3853
67.5 105 4.873 0.3841 0.4056
67.5 135 4.789 0.4164 0.3974
67.5 165 3.538 0.2796 0.3693
67.5 195 3.626 0.2759 0.3791
67.5 225 4.476 0.4062 0.3918
67.5 255 5.293 0.4144 0.4157
67.5 285 6.274 2.2 0.4131
67.5 315 4.294 0.7925 0.4058
82.5 15 1.396 0.2906 0.2723
82.5 75 3.77 0.6727 0.3107
82.5 105 4.21 0.3125 0.3341
82.5 135 3.752 0.3809 0.3191
82.5 165 3.146 0.3259 0.3124
82.5 195 3.161 0.2858 0.3038
82.5 225 3.491 0.3407 0.3066
82.5 255 3.531 0.2775 0.307
82.5 285 3.007 0.3393 0.3069
82.5 315 2.982 0.9802 0.3122
82.5 345 1.341 0.3205 0.2711
97.5 45 1.79 0.3264 0.2301
97.5 75 2.322 0.2637 0.2427
97.5 105 2.641 0.2258 0.2533
97.5 135 3.223 0.5314 0.2734
97.5 165 2.5 0.3445 0.2427
97.5 195 2.227 0.2859 0.2471
97.5 225 2.672 0.4001 0.2615
97.5 255 3 0.2993 0.2675
97.5 285 2.488 0.3143 0.249
97.5 315 1.334 0.2026 0.2266
112.5 45 1.006 0.1876 0.1428
112.5 75 1.562 0.2317 0.1491
112.5 105 1.521 0.2164 0.1509
112.5 135 1.72 0.2595 0.1591
112.5 165 1.584 0.2599 0.165
112.5 195 1.644 0.2223 0.1703
112.5 225 1.733 0.303 0.1592
112.5 255 2.021 0.251 0.1656
112.5 285 1.534 0.3867 0.1459
112.5 315 1.087 0.1975 0.1381
127.5 15 0.4887 0.2277 0.2274
127.5 45 1.093 0.3817 0.2343
127.5 75 1.019 0.2114 0.2299
127.5 105 0.7897 0.1393 0.2302
127.5 135 1.148 0.2412 0.2343
127.5 165 1.131 0.2874 0.2532
127.5 195 0.9501 0.2626 0.2304
127.5 225 1.078 0.2261 0.2316
127.5 255 1.362 0.2759 0.2355
127.5 285 1.125 0.2321 0.2337
127.5 315 0.8937 0.2293 0.2321
127.5 345 0.5045 0.2172 0.2264
142.5 15 0.2272 0.07894 0.03289
142.5 45 0.2791 0.09154 0.03413
142.5 75 0.2667 0.09338 0.03382
142.5 105 0.9939 0.3693 0.1652
142.5 135 0.4839 0.1673 0.137
142.5 225 0.9648 0.2981 0.1466
142.5 255 0.6818 0.2505 0.04888
142.5 285 0.5785 0.169 0.04447
142.5 315 0.4807 0.1493 0.04061
142.5 345 0.2687 0.1122 0.03387
157.5 15 0.1929 0.1088 0.02583
157.5 345 0.3041 0.1862 0.03674