CLAS Physics Database

Measurement E141M2

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: 1.8 GeV2
W: 1.615 GeV
Ebeam: 5.499 GeV
Publication:

Slice: cos(θ) =

Measurement data
cos(θ) φ, [degree] dσ/dΩ, [μb/rad] uncertainty
-0.9 15.0 1.3231 0.2047
-0.9 45.0 0.9232 0.151
-0.9 75.0 1.0562 0.1804
-0.9 105.0 0.8657 0.1241
-0.9 135.0 0.8296 0.1302
-0.9 165.0 0.646 0.1195
-0.9 195.0 0.836 0.37
-0.9 225.0 0.7872 0.1082
-0.9 255.0 0.7639 0.131
-0.9 285.0 0.7806 0.1272
-0.9 315.0 1.0921 0.1612
-0.9 345.0 1.3743 0.1914
-0.7 15.0 0.6744 0.1207
-0.7 45.0 1.0916 0.128
-0.7 75.0 1.0685 0.1349
-0.7 105.0 0.8252 0.0834
-0.7 135.0 0.786 0.09
-0.7 165.0 0.7467 0.1597
-0.7 195.0 0.72 0.0937
-0.7 225.0 0.9933 0.1142
-0.7 255.0 1.2785 0.1282
-0.7 285.0 1.1302 0.1384
-0.7 315.0 0.998 0.13
-0.7 345.0 0.7751 0.1301
-0.5 15.0 0.601 0.1202
-0.5 45.0 1.2708 0.1783
-0.5 75.0 1.7538 0.1788
-0.5 105.0 1.9767 0.1667
-0.5 135.0 1.3202 0.1287
-0.5 165.0 0.8366 0.0887
-0.5 195.0 0.9824 0.1052
-0.5 225.0 1.2181 0.1208
-0.5 255.0 1.4977 0.137
-0.5 285.0 1.5921 0.1635
-0.5 315.0 1.3515 0.1708
-0.5 345.0 0.7462 0.1416
-0.3 15.0 0.7798 0.1354
-0.3 45.0 1.2138 0.2022
-0.3 75.0 1.3841 0.1465
-0.3 105.0 1.475 0.1333
-0.3 135.0 1.3739 0.1195
-0.3 165.0 0.9628 0.089
-0.3 195.0 1.1024 0.0981
-0.3 225.0 1.0549 0.1044
-0.3 255.0 1.3367 0.1176
-0.3 285.0 1.3715 0.1486
-0.3 315.0 1.1841 0.2165
-0.3 345.0 0.4472 0.1034
-0.1 15.0 0.6382 0.0977
-0.1 45.0 1.2797 0.1984
-0.1 75.0 1.3609 0.135
-0.1 105.0 1.4313 0.1299
-0.1 135.0 1.233 0.1174
-0.1 165.0 1.2171 0.0984
-0.1 195.0 1.2026 0.101
-0.1 225.0 1.2459 0.1232
-0.1 255.0 1.1939 0.1133
-0.1 285.0 1.1969 0.1296
-0.1 345.0 0.6416 0.1326
0.1 15.0 0.6593 0.1378
0.1 45.0 1.0603 0.1259
0.1 75.0 1.4308 0.1367
0.1 105.0 1.5192 0.1407
0.1 165.0 0.9828 0.0801
0.1 195.0 1.0767 0.0833
0.1 225.0 0.9125 0.1038
0.1 255.0 1.134 0.1084
0.1 285.0 1.3614 0.139
0.1 315.0 1.36 0.2015
0.1 345.0 0.7027 0.2039
0.3 15.0 0.531 0.0724
0.3 45.0 1.0132 0.0781
0.3 75.0 1.621 0.123
0.3 105.0 1.4063 0.1126
0.3 135.0 1.3618 0.1226
0.3 165.0 1.0178 0.0789
0.3 195.0 1.1998 0.0886
0.3 225.0 1.2776 0.109
0.3 285.0 1.2518 0.1195
0.3 315.0 1.0165 0.0939
0.3 345.0 0.8895 0.1269
0.5 15.0 0.7268 0.0953
0.5 45.0 1.004 0.0823
0.5 75.0 2.0902 0.1873
0.5 105.0 2.0325 0.1854
0.5 165.0 0.998 0.0806
0.5 195.0 1.2072 0.0981
0.5 225.0 1.4457 0.1332
0.5 255.0 2.1166 0.2114
0.5 285.0 1.9468 0.2199
0.5 315.0 1.1162 0.1088
0.5 345.0 0.7776 0.1069
0.7 15.0 0.7898 0.0668
0.7 45.0 1.6705 0.1334
0.7 75.0 2.4594 0.203
0.7 105.0 2.601 0.2496
0.7 135.0 1.7262 0.1509
0.7 165.0 1.13 0.0912
0.7 195.0 1.1922 0.0985
0.7 225.0 1.7864 0.159
0.7 255.0 2.295 0.2355
0.7 285.0 2.4025 0.2341
0.7 315.0 1.3605 0.1249
0.7 345.0 0.7573 0.0622
0.9 15.0 1.4827 0.0945
0.9 45.0 1.4701 0.1015
0.9 75.0 1.6903 0.1324
0.9 105.0 1.8598 0.1491
0.9 135.0 2.0462 0.1733
0.9 165.0 1.4491 0.1311
0.9 195.0 1.6107 0.1412
0.9 225.0 1.8815 0.1632
0.9 255.0 1.9105 0.1491
0.9 285.0 1.5833 0.1165
0.9 315.0 1.6665 0.1126
0.9 345.0 1.2715 0.0836