CLAS Physics Database

Measurement E141M55

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

Experiment comment:

polarization of electron beam : ~80%
Spokespersons: K. Park, V.D. Burkert, I.G. Aznauryan
Reaction: ep → π+n
Polarization: beam
Quantity: dσ/dΩ
Q2: 2.6 GeV2
W: 1.685 GeV
Ebeam: 5.499 GeV
Publication:

Slice: cos(θ) =

Measurement data
cos(θ) φ, [degree] dσ/dΩ, [μb/rad] uncertainty syst. uncert.
-0.9 15.0 0.4463 0.101 0.0253
-0.9 45.0 0.5484 0.1029 0.03
-0.9 75.0 0.6018 0.1796 0.1056
-0.9 105.0 0.4993 0.0992 0.0405
-0.9 135.0 0.4535 0.0974 0.0554
-0.9 165.0 0.3858 0.1611 0.0736
-0.9 195.0 0.4113 0.2036 0.1029
-0.9 225.0 0.3942 0.0939 0.0504
-0.9 255.0 0.4114 0.0902 0.0415
-0.9 285.0 0.4736 0.1041 0.0384
-0.9 315.0 0.4377 0.073 0.0187
-0.9 345.0 0.4113 0.0651 0.0095
-0.7 15.0 0.5009 0.1288 0.0338
-0.7 45.0 0.4816 0.0721 0.0193
-0.7 75.0 0.5078 0.0899 0.0159
-0.7 105.0 0.4236 0.0651 0.0099
-0.7 135.0 0.3953 0.0658 0.0184
-0.7 165.0 0.2813 0.0566 0.0172
-0.7 195.0 0.3277 0.0611 0.0159
-0.7 225.0 0.352 0.0599 0.0191
-0.7 255.0 0.4866 0.0729 0.0157
-0.7 285.0 0.4335 0.0766 0.0195
-0.7 315.0 0.4924 0.0952 0.02
-0.7 345.0 0.4322 0.0951 0.025
-0.5 15.0 0.3695 0.0842 0.0241
-0.5 45.0 0.5009 0.0917 0.0294
-0.5 75.0 0.4854 0.077 0.0128
-0.5 105.0 0.5288 0.0706 0.0079
-0.5 135.0 0.5101 0.0753 0.0196
-0.5 165.0 0.4229 0.0616 0.0402
-0.5 195.0 0.4026 0.0616 0.0387
-0.5 225.0 0.3994 0.0589 0.016
-0.5 255.0 0.6115 0.0831 0.0339
-0.5 285.0 0.5448 0.087 0.0128
-0.5 315.0 0.3558 0.0854 0.0228
-0.3 15.0 0.3398 0.096 0.0073
-0.3 45.0 0.465 0.1045 0.0086
-0.3 75.0 0.5523 0.0886 0.0171
-0.3 105.0 0.5749 0.077 0.0098
-0.3 135.0 0.5908 0.0748 0.0217
-0.3 165.0 0.5454 0.0618 0.0414
-0.3 195.0 0.6 0.0689 0.0453
-0.3 225.0 0.5658 0.0769 0.0248
-0.3 255.0 0.5217 0.0686 0.0073
-0.3 285.0 0.6161 0.0869 0.0072
-0.1 15.0 0.2944 0.0839 0.0064
-0.1 45.0 0.5977 0.1214 0.0119
-0.1 75.0 0.7045 0.0889 0.0235
-0.1 105.0 0.6731 0.0808 0.0152
-0.1 135.0 0.6825 0.0921 0.015
-0.1 165.0 0.4992 0.0524 0.0227
-0.1 195.0 0.5468 0.0567 0.0254
-0.1 225.0 0.5228 0.0641 0.022
-0.1 255.0 0.6453 0.0717 0.0113
-0.1 285.0 0.6426 0.0902 0.0146
-0.1 315.0 0.5725 0.1422 0.0108
0.1 15.0 3.3727 2.2825 0.0636
0.1 45.0 0.5633 0.0857 0.012
0.1 75.0 0.8225 0.1009 0.0283
0.1 105.0 0.5855 0.0746 0.0345
0.1 135.0 0.6235 0.0792 0.0111
0.1 165.0 0.513 0.0509 0.0125
0.1 195.0 0.5344 0.0528 0.0085
0.1 225.0 0.7292 0.0813 0.0316
0.1 255.0 0.607 0.0759 0.0164
0.1 285.0 0.7857 0.1236 0.0413
0.1 315.0 0.6749 0.1297 0.0144
0.3 15.0 0.4304 0.0956 0.0088
0.3 45.0 0.6014 0.0694 0.0137
0.3 75.0 0.8788 0.089 0.0329
0.3 105.0 0.836 0.0936 0.0224
0.3 135.0 0.653 0.0676 0.0281
0.3 165.0 0.5341 0.0453 0.0123
0.3 195.0 0.5616 0.0485 0.0644
0.3 225.0 0.5579 0.065 0.0138
0.3 255.0 0.6972 0.0929 0.0338
0.3 285.0 0.8248 0.1091 0.0204
0.3 315.0 0.645 0.0845 0.0139
0.3 345.0 0.1251 0.0399 0.0029
0.5 15.0 0.4612 0.0943 0.0136
0.5 45.0 0.7142 0.1039 0.0188
0.5 75.0 0.8601 0.0975 0.0221
0.5 105.0 1.0553 0.1417 0.0495
0.5 135.0 0.5925 0.0819 0.0684
0.5 165.0 0.4062 0.0392 0.0317
0.5 195.0 0.3788 0.037 0.0132
0.5 225.0 0.5728 0.0767 0.0239
0.5 255.0 0.9009 0.1394 0.0267
0.5 285.0 0.9498 0.1313 0.0505
0.5 315.0 0.5742 0.0958 0.0158
0.5 345.0 0.3794 0.0869 0.0135
0.7 15.0 0.692 0.0808 0.0111
0.7 45.0 0.841 0.1027 0.0199
0.7 75.0 1.1811 0.1251 0.0498
0.7 105.0 1.1596 0.1345 0.0611
0.7 135.0 1.0806 0.174 0.0441
0.7 165.0 0.7601 0.0872 0.0463
0.7 195.0 0.6883 0.0779 0.0383
0.7 225.0 0.9397 0.1384 0.039
0.7 255.0 0.995 0.1305 0.029
0.7 285.0 1.0801 0.1348 0.0296
0.7 315.0 0.7154 0.0952 0.0198
0.7 345.0 0.4574 0.0507 0.0075
0.9 15.0 1.0153 0.0966 0.0274
0.9 45.0 0.6623 0.0664 0.0129
0.9 75.0 0.7988 0.0797 0.0298
0.9 105.0 0.816 0.0904 0.0273
0.9 135.0 0.7164 0.0768 0.0414
0.9 165.0 0.8906 0.106 0.0687
0.9 195.0 0.8604 0.1125 0.0654
0.9 225.0 0.9038 0.0962 0.047
0.9 255.0 0.7134 0.0752 0.0473
0.9 285.0 0.927 0.0918 0.0424
0.9 315.0 0.7061 0.0744 0.0167
0.9 345.0 1.0372 0.1095 0.023