CLAS Physics Database

Measurement E141M41

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: 1.775 GeV
Ebeam: 5.499 GeV
Publication:

Slice: cos(θ) =

Measurement data
cos(θ) φ, [degree] dσ/dΩ, [μb/rad] uncertainty
-0.7 15.0 0.1117 0.0476
-0.7 45.0 0.0946 0.0287
-0.7 75.0 0.0861 0.0216
-0.7 105.0 0.1138 0.0345
-0.7 135.0 0.0757 0.0196
-0.7 165.0 0.1108 0.0389
-0.7 195.0 0.069 0.0177
-0.7 225.0 0.0755 0.0206
-0.7 255.0 0.0735 0.0161
-0.7 285.0 0.0969 0.0412
-0.7 315.0 0.0654 0.0158
-0.5 15.0 0.1087 0.0338
-0.5 45.0 0.1234 0.0456
-0.5 75.0 0.0987 0.0442
-0.5 105.0 0.1259 0.0206
-0.5 135.0 0.1243 0.0217
-0.5 165.0 0.0829 0.0208
-0.5 195.0 0.1063 0.0233
-0.5 225.0 0.1098 0.0276
-0.5 255.0 0.1034 0.0165
-0.5 285.0 0.1173 0.0246
-0.5 315.0 0.1068 0.0239
-0.5 345.0 0.116 0.0811
-0.3 15.0 0.0761 0.0309
-0.3 45.0 0.1717 0.0656
-0.3 75.0 0.259 0.0449
-0.3 105.0 0.2419 0.0364
-0.3 135.0 0.1979 0.038
-0.3 165.0 0.1373 0.0211
-0.3 195.0 0.1196 0.0179
-0.3 225.0 0.1707 0.0248
-0.3 255.0 0.1711 0.0259
-0.3 285.0 0.2258 0.0419
-0.3 315.0 0.2384 0.067
-0.1 15.0 0.08 0.0338
-0.1 45.0 0.2813 0.0707
-0.1 75.0 0.4466 0.0671
-0.1 105.0 0.466 0.0595
-0.1 135.0 0.2582 0.045
-0.1 165.0 0.212 0.0274
-0.1 195.0 0.226 0.0262
-0.1 225.0 0.2634 0.0465
-0.1 255.0 0.4886 0.0643
-0.1 285.0 0.3729 0.0583
0.1 15.0 0.1303 0.0854
0.1 45.0 0.3485 0.0706
0.1 75.0 0.6221 0.0833
0.1 105.0 0.3762 0.0515
0.1 165.0 0.2167 0.028
0.1 195.0 0.2364 0.0283
0.1 225.0 0.3437 0.0535
0.1 255.0 0.4924 0.07
0.1 285.0 0.5016 0.087
0.1 315.0 0.4232 0.1065
0.3 15.0 0.052 0.0145
0.3 45.0 0.3586 0.0451
0.3 75.0 0.5201 0.06
0.3 105.0 0.5112 0.0637
0.3 135.0 0.2466 0.0287
0.3 165.0 0.1684 0.0154
0.3 195.0 0.1922 0.0173
0.3 225.0 0.3517 0.0467
0.3 255.0 0.395 0.0615
0.3 285.0 0.4812 0.067
0.3 315.0 0.2576 0.0405
0.3 345.0 0.1849 0.0505
0.5 15.0 0.1444 0.031
0.5 45.0 0.2907 0.0382
0.5 75.0 0.515 0.0624
0.5 105.0 0.6523 0.0931
0.5 135.0 0.3046 0.0395
0.5 165.0 0.1767 0.0185
0.5 195.0 0.1478 0.0152
0.5 225.0 0.2952 0.0402
0.5 255.0 0.5426 0.0932
0.5 285.0 0.5394 0.0814
0.5 315.0 0.3166 0.0467
0.5 345.0 0.1802 0.0496
0.7 15.0 0.1759 0.0228
0.7 45.0 0.2442 0.0328
0.7 75.0 0.3853 0.0472
0.7 105.0 0.6226 0.0887
0.7 135.0 0.527 0.0801
0.7 165.0 0.3347 0.0458
0.7 195.0 0.4032 0.05
0.7 225.0 0.4852 0.0779
0.7 255.0 0.5412 0.0799
0.7 285.0 0.3377 0.0478
0.7 315.0 0.2663 0.0399
0.7 345.0 0.1876 0.0237
0.9 15.0 0.3592 0.0332
0.9 45.0 0.3184 0.032
0.9 75.0 0.349 0.034
0.9 105.0 0.4255 0.0397
0.9 135.0 0.4649 0.0459
0.9 165.0 0.4233 0.0447
0.9 195.0 0.5042 0.0514
0.9 225.0 0.4384 0.0439
0.9 255.0 0.3858 0.0382
0.9 285.0 0.349 0.0334
0.9 315.0 0.3172 0.0326
0.9 345.0 0.3306 0.0293