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Measurement E141M48

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Experiment: Measurement of ep→e′nπ+ at 1.6<W<2.0 GeV and extraction of nucleon resonance electrocoupling at CLAS, 2014

Spokespersons: K. Park, V.D. Burkert, I.G. Aznauryan

Experiment comment: polarization of electron beam : ~80%

Publication:

Quantity measured: dσ/dΩ, mcbn/rad
Differential cross section.
Beam: e, polarization: polarized
Target: p (Z=1, A=1), polarization: none
Final state: π+n, polarization: none

Q2 : 2.6 GeV2
W : 1.615 GeV
Ebeam : 5.499 GeV

Select data slice:
cos(θ) =
Observable quantity measured (Y axis): dσ/dΩ, mcbn/rad
Plot measurement data

Parameter (X axis): φ, degree

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Measured data:

cos(θ) φ,
degree 		dσ/dΩ,
mcbn/rad 		Data errors,
mcbn/rad 		Systematic errors,
mcbn/rad
-0.9 15 0.3036 0.0668 0.0088
-0.9 45 0.2808 0.0562 0.0139
-0.9 75 0.4891 0.1121 0.0455
-0.9 105 0.3903 0.0857 0.0475
-0.9 135 0.395 0.0869 0.0495
-0.9 165 0.3303 0.0736 0.0422
-0.9 195 0.3492 0.0617 0.0488
-0.9 225 0.4617 0.0827 0.0665
-0.9 255 0.3736 0.079 0.0443
-0.9 285 0.3375 0.0867 0.0358
-0.9 315 0.5959 0.1199 0.0332
-0.7 75 0.597 0.1064 0.0434
-0.7 105 0.5607 0.0897 0.0427
-0.7 135 0.5787 0.0848 0.0336
-0.7 165 0.551 0.089 0.0456
-0.7 195 0.5961 0.0815 0.0326
-0.7 225 0.5298 0.0879 0.032
-0.7 255 0.6979 0.1023 0.049
-0.7 285 0.6202 0.1008 0.0409
-0.7 315 0.4496 0.0787 0.0325
-0.7 345 0.2658 0.0549 0.0236
-0.5 45 0.9348 0.1639 0.0317
-0.5 75 0.7295 0.1137 0.0401
-0.5 105 0.6749 0.0897 0.0401
-0.5 135 0.5465 0.0778 0.0431
-0.5 165 0.5774 0.0849 0.0435
-0.5 195 0.5788 0.0735 0.0433
-0.5 225 0.5415 0.0752 0.0405
-0.5 255 0.762 0.1043 0.0523
-0.5 285 1.2253 0.1917 0.046
-0.5 315 0.8409 0.1475 0.025
-0.3 15 0.3574 0.09 0.0218
-0.3 45 0.5572 0.1345 0.0379
-0.3 75 0.5383 0.0819 0.0333
-0.3 105 0.6152 0.08 0.0588
-0.3 135 0.5256 0.0653 0.0742
-0.3 165 0.5072 0.059 0.0848
-0.3 195 0.5064 0.0611 0.0845
-0.3 225 0.522 0.0719 0.0729
-0.3 255 0.8893 0.1147 0.083
-0.3 285 0.7477 0.1183 0.0518
-0.1 15 2.9569 1.3716 0.1005
-0.1 45 0.5479 0.1181 0.0212
-0.1 75 0.6776 0.1103 0.0375
-0.1 105 0.6994 0.0944 0.0288
-0.1 135 0.6017 0.0841 0.0649
-0.1 165 0.7589 0.0856 0.1241
-0.1 195 0.6207 0.0714 0.1018
-0.1 225 0.6466 0.0871 0.0697
-0.1 255 0.5437 0.0726 0.0221
-0.1 285 0.549 0.0966 0.0116
-0.1 315 0.4825 0.13 0.0117
0.1 15 0.3674 0.1447 0.0078
0.1 45 0.7035 0.1235 0.0246
0.1 75 0.5171 0.0777 0.0204
0.1 105 0.5061 0.0755 0.0494
0.1 135 0.4463 0.0646 0.027
0.1 165 0.4519 0.0527 0.0486
0.1 195 0.5072 0.0595 0.0567
0.1 225 0.4973 0.069 0.0236
0.1 255 0.5812 0.0794 0.0053
0.1 285 0.6903 0.1285 0.0199
0.1 315 0.4984 0.1074 0.0387
0.3 15 0.4688 0.1006 0.0144
0.3 45 0.6101 0.0823 0.0252
0.3 75 0.734 0.0937 0.0208
0.3 105 0.6961 0.0892 0.0138
0.3 135 0.44 0.0562 0.0105
0.3 165 0.5024 0.0487 0.0213
0.3 195 0.4231 0.0422 0.0183
0.3 225 0.4328 0.0556 0.0246
0.3 255 0.5803 0.0919 0.0344
0.3 285 0.7646 0.1091 0.0224
0.3 315 0.7432 0.1358 0.0195
0.3 345 0.5776 0.1924 0.023
0.5 15 0.4801 0.0856 0.0094
0.5 45 0.7818 0.1208 0.0655
0.5 75 0.8929 0.1264 0.0179
0.5 105 0.5396 0.0833 0.0164
0.5 135 0.4351 0.062 0.0129
0.5 165 0.3884 0.0451 0.0153
0.5 195 0.3634 0.0416 0.0168
0.5 225 0.5859 0.084 0.0109
0.5 255 0.8756 0.1595 0.0185
0.5 285 1.0155 0.1632 0.0181
0.5 315 0.8106 0.1436 0.0181
0.5 345 0.5314 0.1008 0.0201
0.7 15 0.5921 0.0749 0.0119
0.7 45 0.7725 0.1053 0.0213
0.7 75 0.9111 0.1133 0.0146
0.7 105 0.7536 0.1123 0.0235
0.7 135 0.6951 0.1182 0.0318
0.7 165 0.5083 0.0669 0.0207
0.7 195 0.4978 0.068 0.0152
0.7 225 0.7017 0.1039 0.0229
0.7 255 0.8957 0.1412 0.0211
0.7 285 0.94 0.1289 0.0128
0.7 315 0.6155 0.0998 0.0097
0.7 345 0.7133 0.0991 0.0436
0.9 15 0.9602 0.099 0.0309
0.9 45 0.9258 0.0967 0.0375
0.9 75 0.9508 0.109 0.03
0.9 105 0.7053 0.0864 0.0303
0.9 135 0.7902 0.1002 0.0353
0.9 165 0.5542 0.0748 0.0411
0.9 195 0.5317 0.0768 0.0198
0.9 225 0.6314 0.0922 0.0189
0.9 255 0.6273 0.0823 0.0163
0.9 285 0.6287 0.0693 0.012
0.9 315 0.8516 0.0889 0.0349
0.9 345 0.8891 0.0937 0.03