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Measurement E8M80

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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 : 1.32 — 1.34 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 11.76 2.003 1.118
7.5 45 16.85 4.738 1.277
7.5 75 8.73 1.705 1.17
7.5 105 14.14 3.454 1.14
7.5 135 7.892 1.733 1.11
7.5 165 12.72 2.516 1.16
7.5 195 10.1 2.1 1.219
7.5 225 8.742 2.075 1.103
7.5 255 10.58 2.411 1.126
7.5 285 12.59 2.807 1.198
7.5 315 12.49 3.291 1.151
7.5 345 13.03 3.705 1.27
22.5 15 8.253 1.011 1.111
22.5 45 9.944 2.172 1.139
22.5 75 10.68 2.16 1.169
22.5 105 8.677 1.835 1.12
22.5 255 7.803 1.9 1.1
22.5 285 7.35 1.262 1.098
22.5 315 9.587 3.196 1.136
22.5 345 9.026 1.142 1.147
37.5 45 9.52 1.903 0.75
37.5 75 9.35 1.311 0.8028
37.5 165 6.99 1.061 0.7224
37.5 195 6.378 0.6964 0.7118
37.5 285 8.147 1.111 0.7365
37.5 315 6.739 1.078 0.707
52.5 45 5.973 0.6528 0.5534
52.5 75 6.686 0.9626 0.5775
52.5 105 8.417 1.95 0.5739
52.5 135 6.073 0.5276 0.5557
52.5 165 6.056 0.4423 0.5568
52.5 195 5.173 0.3488 0.5406
52.5 225 5.5 0.4734 0.5367
52.5 255 7.012 1.473 0.5597
52.5 285 5.358 0.8941 0.5792
52.5 315 6.434 0.652 0.5475
67.5 45 4.001 0.6392 0.3734
67.5 75 3.94 0.5821 0.3901
67.5 105 5.733 0.4258 0.4297
67.5 135 4.538 0.4014 0.4069
67.5 165 4.816 0.371 0.4089
67.5 195 4.453 0.3325 0.3918
67.5 225 4.681 0.4295 0.4053
67.5 255 5.32 0.3817 0.4124
67.5 285 5.012 1.277 0.4101
67.5 315 5.255 1.151 0.4138
82.5 15 2.147 0.4204 0.2748
82.5 45 3.343 0.9309 0.3207
82.5 75 3.306 0.3589 0.2867
82.5 105 3.8 0.3158 0.3184
82.5 135 3.86 0.3568 0.3118
82.5 165 3.348 0.319 0.2904
82.5 195 3.768 0.3523 0.305
82.5 225 3.891 0.4143 0.3101
82.5 255 4.199 0.3315 0.3243
82.5 285 3.802 0.4441 0.3074
82.5 345 2.661 0.8361 0.2743
97.5 15 0.9922 0.518 0.2395
97.5 45 2.716 0.5569 0.2581
97.5 75 2.584 0.3204 0.2657
97.5 105 2.707 0.2352 0.2731
97.5 135 3.167 0.4913 0.2932
97.5 165 2.733 0.3854 0.2683
97.5 195 3.117 0.4159 0.2859
97.5 225 4.002 0.6223 0.3052
97.5 255 3.271 0.2973 0.2826
97.5 285 2.257 0.2714 0.2563
97.5 315 1.884 0.2468 0.2539
112.5 15 0.8409 0.3897 0.1033
112.5 45 1.109 0.1732 0.2546
112.5 75 2.114 0.3214 0.2719
112.5 105 2.274 0.3037 0.2674
112.5 135 1.633 0.2425 0.2625
112.5 165 1.896 0.2448 0.2708
112.5 195 1.728 0.2733 0.2711
112.5 225 2.032 0.2863 0.2648
112.5 255 2.085 0.2432 0.274
112.5 285 2.294 0.4213 0.2668
112.5 315 1.556 0.2751 0.2585
127.5 15 0.6763 0.2904 0.2006
127.5 45 1.055 0.219 0.2038
127.5 75 1.505 0.2703 0.2123
127.5 105 1.197 0.1794 0.2163
127.5 135 1.116 0.2334 0.2068
127.5 165 1.229 0.3225 0.203
127.5 195 0.9222 0.2036 0.2033
127.5 225 1.927 0.8227 0.22
127.5 255 1.122 0.1769 0.2027
127.5 285 1.861 0.7494 0.2241
127.5 315 0.983 0.2909 0.2024
127.5 345 0.9529 0.3616 0.2029
142.5 15 0.2096 0.07338 0.03876
142.5 45 0.7478 0.3243 0.1405
142.5 75 0.5669 0.1324 0.1401
142.5 105 0.6195 0.1806 0.1361
142.5 225 1.04 0.3447 0.05222
142.5 255 0.7683 0.263 0.1421
142.5 285 0.7767 0.2255 0.137
142.5 315 0.9092 0.3713 0.1378
142.5 345 0.2717 0.121 0.03921
157.5 15 0.285 0.1288 0.02603
157.5 345 0.3113 0.1442 0.0274