CLAS Physics Database

Measurement E141M32

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: 2.2 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 0.8159 0.1155 0.0367
-0.9 45.0 0.8034 0.1148 0.0418
-0.9 75.0 0.7034 0.116 0.0522
-0.9 105.0 0.5389 0.0887 0.0378
-0.9 135.0 0.5018 0.1181 0.0985
-0.9 165.0 0.4276 0.0905 0.0722
-0.9 195.0 0.4653 0.1027 0.1098
-0.9 225.0 0.555 0.1062 0.0804
-0.9 255.0 0.5245 0.0953 0.0501
-0.9 285.0 0.6292 0.1273 0.0604
-0.9 315.0 0.8056 0.1135 0.0377
-0.9 345.0 0.6607 0.1002 0.0246
-0.7 15.0 0.5797 0.1013 0.0178
-0.7 45.0 0.639 0.094 0.0195
-0.7 75.0 0.683 0.1072 0.0308
-0.7 105.0 0.5802 0.0849 0.0261
-0.7 135.0 0.3262 0.0491 0.0256
-0.7 165.0 0.3268 0.0481 0.0291
-0.7 195.0 0.3416 0.0616 0.0368
-0.7 225.0 0.384 0.0598 0.0299
-0.7 255.0 0.5004 0.065 0.0193
-0.7 285.0 0.578 0.0997 0.023
-0.7 315.0 0.6437 0.0832 0.0181
-0.7 345.0 0.5148 0.0996 0.0166
-0.5 15.0 0.5085 0.1282 0.016
-0.5 45.0 0.6497 0.0999 0.0341
-0.5 75.0 0.7389 0.1054 0.0216
-0.5 105.0 0.8161 0.0944 0.0187
-0.5 135.0 0.6359 0.0788 0.0157
-0.5 165.0 0.4716 0.0617 0.0158
-0.5 195.0 0.4924 0.0613 0.0177
-0.5 225.0 0.5592 0.0655 0.0145
-0.5 255.0 0.8742 0.0957 0.0248
-0.5 285.0 0.8071 0.1121 0.0212
-0.5 315.0 0.7128 0.1309 0.0214
-0.5 345.0 0.3782 0.0877 0.0135
-0.3 15.0 0.4647 0.1028 0.006
-0.3 45.0 0.6911 0.1262 0.0083
-0.3 75.0 0.8178 0.0999 0.018
-0.3 105.0 0.8988 0.0954 0.0236
-0.3 135.0 0.8527 0.0936 0.0302
-0.3 165.0 0.6907 0.0661 0.0338
-0.3 195.0 0.6864 0.0667 0.0326
-0.3 225.0 0.6916 0.0745 0.0305
-0.3 255.0 0.8629 0.0909 0.0343
-0.3 285.0 0.6991 0.0775 0.0292
-0.1 15.0 0.4615 0.0965 0.0027
-0.1 45.0 0.6743 0.1349 0.0117
-0.1 75.0 0.9342 0.0999 0.017
-0.1 105.0 0.7738 0.0817 0.0217
-0.1 135.0 0.7692 0.0929 0.0216
-0.1 165.0 0.7823 0.0642 0.016
-0.1 195.0 0.722 0.0627 0.0182
-0.1 225.0 0.7244 0.0779 0.018
-0.1 255.0 0.7994 0.0803 0.0287
-0.1 285.0 0.8312 0.0954 0.0371
0.1 15.0 0.5401 0.2393 0.0139
0.1 45.0 0.7456 0.0925 0.0207
0.1 75.0 1.0028 0.1043 0.0451
0.1 105.0 0.914 0.0897 0.0239
0.1 135.0 0.8596 0.0921 0.0201
0.1 165.0 0.6045 0.054 0.0161
0.1 195.0 0.5946 0.0539 0.0124
0.1 225.0 0.8194 0.0869 0.0189
0.1 255.0 1.002 0.0975 0.0245
0.1 285.0 1.0661 0.1185 0.0266
0.1 315.0 0.6628 0.1017 0.0156
0.3 15.0 0.3974 0.0615 0.0082
0.3 45.0 0.9951 0.0876 0.0209
0.3 75.0 1.1848 0.0966 0.0386
0.3 105.0 1.0638 0.0917 0.0469
0.3 135.0 0.7405 0.0721 0.0317
0.3 165.0 0.6384 0.049 0.0072
0.3 195.0 0.654 0.0502 0.0174
0.3 225.0 0.8447 0.0842 0.0398
0.3 255.0 1.0701 0.099 0.0371
0.3 285.0 1.1486 0.1228 0.0319
0.3 315.0 1.0444 0.1092 0.0222
0.3 345.0 0.8074 0.1564 0.0167
0.5 15.0 0.3943 0.0525 0.0172
0.5 45.0 0.7196 0.07 0.038
0.5 75.0 1.1351 0.102 0.0336
0.5 105.0 1.2015 0.1294 0.0407
0.5 135.0 0.9472 0.0915 0.0691
0.5 165.0 0.5999 0.0523 0.0249
0.5 195.0 0.4636 0.0418 0.0095
0.5 225.0 0.8253 0.0858 0.0394
0.5 255.0 1.2634 0.1591 0.0389
0.5 285.0 1.2954 0.1456 0.0496
0.5 315.0 0.8016 0.0896 0.0176
0.5 345.0 0.3232 0.0519 0.0199
0.7 15.0 0.4961 0.0441 0.0099
0.7 45.0 1.0525 0.0934 0.0298
0.7 75.0 1.2909 0.0988 0.0671
0.7 105.0 1.58 0.1335 0.0651
0.7 165.0 0.7912 0.0661 0.0508
0.7 195.0 0.7767 0.0639 0.033
0.7 225.0 1.0184 0.101 0.0432
0.7 255.0 1.378 0.1284 0.042
0.7 285.0 1.5889 0.1372 0.0605
0.7 315.0 0.8732 0.0839 0.0252
0.7 345.0 0.4681 0.0405 0.0087
0.9 15.0 1.137 0.0889 0.0323
0.9 45.0 1.0841 0.0848 0.0241
0.9 75.0 1.1426 0.0871 0.0261
0.9 105.0 1.2166 0.1039 0.0582
0.9 135.0 1.1215 0.1111 0.0729
0.9 165.0 1.1472 0.1143 0.0903
0.9 195.0 1.0311 0.1028 0.0878
0.9 225.0 1.173 0.111 0.066
0.9 255.0 1.2346 0.1029 0.0427
0.9 285.0 1.178 0.0995 0.0345
0.9 315.0 1.0865 0.0857 0.038
0.9 345.0 1.2397 0.0921 0.0335