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Measurement E141M31

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: 1.675 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 0.9349 0.1388 0.0332
-0.9 45.0 0.8903 0.1313 0.049
-0.9 75.0 0.7881 0.1729 0.1543
-0.9 105.0 0.6046 0.0971 0.065
-0.9 135.0 0.6497 0.1102 0.0935
-0.9 165.0 0.5172 0.1617 0.1144
-0.9 195.0 0.5902 0.2857 0.248
-0.9 225.0 0.7032 0.1185 0.0937
-0.9 255.0 0.5546 0.093 0.072
-0.9 285.0 0.7061 0.1179 0.0482
-0.9 315.0 0.9352 0.1309 0.0407
-0.9 345.0 0.7777 0.1116 0.0281
-0.7 15.0 0.5739 0.1061 0.0657
-0.7 45.0 0.6759 0.0986 0.0183
-0.7 75.0 0.7601 0.1346 0.0401
-0.7 105.0 0.6627 0.0856 0.0523
-0.7 135.0 0.4024 0.0568 0.044
-0.7 165.0 0.3952 0.0607 0.0453
-0.7 195.0 0.4192 0.0594 0.0495
-0.7 225.0 0.4758 0.0672 0.0517
-0.7 255.0 0.6233 0.0876 0.0506
-0.7 285.0 0.6724 0.1035 0.0174
-0.7 315.0 0.7101 0.0932 0.0237
-0.7 345.0 0.5352 0.0877 0.0342
-0.5 15.0 0.4757 0.1059 0.0199
-0.5 45.0 0.7078 0.1084 0.0308
-0.5 75.0 0.8021 0.1182 0.0413
-0.5 105.0 0.8971 0.1027 0.0356
-0.5 135.0 0.6609 0.0862 0.0272
-0.5 165.0 0.5022 0.0569 0.0266
-0.5 195.0 0.5353 0.0618 0.0307
-0.5 225.0 0.609 0.0727 0.0267
-0.5 255.0 0.9373 0.104 0.0311
-0.5 285.0 0.8554 0.1266 0.031
-0.5 315.0 0.7729 0.1274 0.0362
-0.5 345.0 0.2907 0.0749 0.0217
-0.3 15.0 0.4688 0.1391 0.0191
-0.3 45.0 0.7065 0.1132 0.0133
-0.3 75.0 0.8233 0.1037 0.0222
-0.3 105.0 0.9893 0.1099 0.0401
-0.3 135.0 0.9317 0.0932 0.0567
-0.3 165.0 0.7614 0.0713 0.0619
-0.3 195.0 0.715 0.0705 0.0603
-0.3 225.0 0.7464 0.0865 0.0431
-0.3 255.0 0.9123 0.0987 0.0385
-0.3 285.0 0.6954 0.0867 0.025
-0.1 15.0 0.43 0.0995 0.0182
-0.1 45.0 0.6441 0.1216 0.0185
-0.1 75.0 0.9205 0.0993 0.0181
-0.1 105.0 0.7335 0.0798 0.0124
-0.1 135.0 0.6865 0.0705 0.0234
-0.1 165.0 0.709 0.0608 0.0195
-0.1 195.0 0.6757 0.0586 0.0212
-0.1 225.0 0.6733 0.0743 0.014
-0.1 255.0 0.873 0.0817 0.0167
-0.1 285.0 0.8553 0.1051 0.013
0.1 15.0 0.5942 0.1713 0.0119
0.1 45.0 0.7903 0.1178 0.0099
0.1 75.0 0.9767 0.1032 0.0243
0.1 105.0 0.888 0.0881 0.015
0.1 135.0 0.9437 0.1042 0.0125
0.1 165.0 0.6212 0.0559 0.044
0.1 195.0 0.6362 0.0562 0.0082
0.1 225.0 0.8478 0.0868 0.0134
0.1 255.0 0.9807 0.0984 0.0222
0.1 285.0 1.0962 0.1407 0.0146
0.1 315.0 0.7199 0.1136 0.0171
0.3 15.0 0.4555 0.0713 0.0034
0.3 45.0 1.0482 0.0913 0.0141
0.3 75.0 1.2756 0.1135 0.0349
0.3 105.0 1.1209 0.1024 0.0594
0.3 135.0 0.7774 0.0763 0.0285
0.3 165.0 0.7123 0.0522 0.0121
0.3 195.0 0.7329 0.0537 0.0124
0.3 225.0 0.8764 0.0853 0.0167
0.3 255.0 1.0548 0.1041 0.0465
0.3 285.0 1.2425 0.1265 0.0233
0.3 315.0 1.0562 0.1055 0.0165
0.3 345.0 0.7822 0.1504 0.0201
0.5 15.0 0.3244 0.0459 0.0114
0.5 45.0 0.7338 0.0757 0.0334
0.5 75.0 1.1301 0.1019 0.0367
0.5 105.0 1.2272 0.1353 0.0766
0.5 135.0 0.9768 0.0976 0.0358
0.5 165.0 0.5632 0.0479 0.0177
0.5 195.0 0.4843 0.0436 0.0094
0.5 225.0 0.7718 0.0801 0.0334
0.5 255.0 1.319 0.1611 0.0339
0.5 285.0 1.2827 0.1456 0.0255
0.5 315.0 0.8341 0.1025 0.0112
0.5 345.0 0.3566 0.0614 0.0046
0.7 15.0 0.4647 0.0426 0.0157
0.7 45.0 1.0834 0.1124 0.0248
0.7 75.0 1.3366 0.121 0.0387
0.7 105.0 1.6722 0.1747 0.0667
0.7 165.0 0.8311 0.076 0.0333
0.7 195.0 0.8078 0.0721 0.0411
0.7 225.0 1.1404 0.1212 0.0467
0.7 255.0 1.5489 0.1819 0.0514
0.7 285.0 1.6948 0.1727 0.052
0.7 315.0 1.0509 0.114 0.026
0.7 345.0 0.4677 0.0411 0.0076
0.9 15.0 1.168 0.0923 0.0481
0.9 45.0 1.0704 0.0837 0.0262
0.9 75.0 1.1169 0.0919 0.0233
0.9 105.0 1.1655 0.1011 0.0321
0.9 135.0 1.1496 0.1084 0.0449
0.9 165.0 1.2171 0.1329 0.0704
0.9 195.0 1.0538 0.1069 0.0715
0.9 225.0 1.2209 0.116 0.0582
0.9 255.0 1.2436 0.1063 0.0322
0.9 285.0 1.0966 0.0923 0.0298
0.9 315.0 1.176 0.0932 0.0216
0.9 345.0 1.3343 0.1029 0.0483
Created in SINP MSU, CLAS Collaboration