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Measurement E141M22

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

Spokespersons: K. Park, V.D. Burkert, I.G. Aznauryan

Experiment comment: polarization of electron beam : ~80%

Publication:

Quantity measured: dσ/dΩ, mcbn/rad
Differential cross section.
Beam: e, polarization: polarized
Target: p (Z=1, A=1), polarization: none
Final state: π+n, polarization: none

Q2 : 1.8 GeV2
W : 1.95 GeV
Ebeam : 5.499 GeV

Select data slice:
cos(θ) =
Observable quantity measured (Y axis): dσ/dΩ, mcbn/rad
Plot measurement data

Parameter (X axis): φ, degree

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Click here to get data in text file, delimited with tabs.

Measured data:

cos(θ) φ,
degree 		dσ/dΩ,
mcbn/rad 		Data errors,
mcbn/rad 		Systematic errors,
mcbn/rad
-0.9 7.5 0.0364 0.0089 0.003
-0.9 22.5 0.0442 0.0119 0.011
-0.9 37.5 0.0746 0.0178 0.0144
-0.9 52.5 0.0554 0.0106 0.0085
-0.9 67.5 0.0809 0.0147 0.0168
-0.9 82.5 0.0837 0.0182 0.0143
-0.9 97.5 0.0887 0.0211 0.0177
-0.9 112.5 0.0532 0.0125 0.0171
-0.9 127.5 0.0513 0.011 0.0067
-0.9 142.5 0.0418 0.0123 0.0106
-0.9 157.5 0.0624 0.0252 0.0112
-0.9 172.5 0.0457 0.0149 0.0134
-0.9 187.5 0.0657 0.0169 0.0051
-0.9 202.5 0.0661 0.0201 0.0312
-0.9 217.5 0.074 0.0209 0.0259
-0.9 232.5 0.0493 0.0119 0.0105
-0.9 247.5 0.0474 0.0114 0.0055
-0.9 262.5 0.0392 0.0109 0.0058
-0.9 277.5 0.0505 0.0137 0.0126
-0.9 292.5 0.0804 0.0186 0.0134
-0.9 307.5 0.0934 0.016 0.0128
-0.9 322.5 0.0661 0.0142 0.0127
-0.9 337.5 0.0419 0.011 0.0052
-0.9 352.5 0.0429 0.0084 0.0071
-0.7 7.5 0.1108 0.0226 0.0117
-0.7 22.5 0.1054 0.0219 0.0156
-0.7 37.5 0.1538 0.0222 0.0122
-0.7 52.5 0.1952 0.0238 0.0328
-0.7 67.5 0.1719 0.023 0.0142
-0.7 82.5 0.1513 0.0245 0.0236
-0.7 97.5 0.1053 0.0163 0.0176
-0.7 112.5 0.1182 0.0161 0.0142
-0.7 127.5 0.0919 0.0139 0.0075
-0.7 142.5 0.059 0.0123 0.0202
-0.7 157.5 0.0454 0.0095 0.0105
-0.7 172.5 0.0476 0.0094 0.0028
-0.7 187.5 0.0359 0.0072 0.0085
-0.7 202.5 0.0406 0.0084 0.0052
-0.7 217.5 0.0923 0.0166 0.0117
-0.7 232.5 0.077 0.0124 0.0121
-0.7 247.5 0.1013 0.0139 0.0167
-0.7 262.5 0.0998 0.0153 0.0097
-0.7 277.5 0.1226 0.0242 0.0201
-0.7 292.5 0.127 0.0176 0.0103
-0.7 307.5 0.1412 0.0182 0.022
-0.7 322.5 0.1341 0.019 0.0193
-0.7 337.5 0.1131 0.0198 0.0102
-0.7 352.5 0.0731 0.0128 0.0109
-0.5 7.5 0.0974 0.0177 0.017
-0.5 22.5 0.0677 0.016 0.0257
-0.5 37.5 0.0801 0.0139 0.0051
-0.5 52.5 0.1485 0.0181 0.0158
-0.5 67.5 0.1587 0.0253 0.0336
-0.5 82.5 0.1509 0.0265 0.0153
-0.5 97.5 0.1127 0.0145 0.0138
-0.5 112.5 0.0588 0.0084 0.0086
-0.5 127.5 0.082 0.0119 0.0168
-0.5 142.5 0.0451 0.0093 0.0116
-0.5 157.5 0.0352 0.007 0.0098
-0.5 172.5 0.0282 0.0051 0.0034
-0.5 187.5 0.0194 0.004 0.0034
-0.5 202.5 0.0332 0.006 0.0041
-0.5 217.5 0.0409 0.0083 0.0159
-0.5 232.5 0.0505 0.0079 0.0051
-0.5 247.5 0.0888 0.0105 0.0132
-0.5 262.5 0.1114 0.0139 0.0179
-0.5 277.5 0.1134 0.0221 0.0148
-0.5 292.5 0.1274 0.019 0.0404
-0.5 307.5 0.0917 0.0123 0.0114
-0.5 322.5 0.0906 0.0144 0.0115
-0.5 337.5 0.0924 0.0214 0.052
-0.5 352.5 0.0943 0.0163 0.0231
-0.3 7.5 0.0754 0.0168 0.0166
-0.3 22.5 0.1048 0.0262 0.0077
-0.3 37.5 0.0727 0.0148 0.0086
-0.3 52.5 0.0949 0.0159 0.0159
-0.3 67.5 0.0987 0.0205 0.0154
-0.3 82.5 0.1385 0.021 0.0247
-0.3 97.5 0.1538 0.0192 0.0152
-0.3 112.5 0.0961 0.0119 0.0176
-0.3 127.5 0.0369 0.0077 0.0118
-0.3 142.5 0.0561 0.01 0.0134
-0.3 157.5 0.0324 0.0058 0.005
-0.3 172.5 0.0315 0.0048 0.0045
-0.3 187.5 0.0328 0.005 0.0047
-0.3 202.5 0.0542 0.0085 0.0075
-0.3 217.5 0.0523 0.01 0.0188
-0.3 232.5 0.0756 0.0115 0.0129
-0.3 247.5 0.0687 0.0102 0.0081
-0.3 262.5 0.0807 0.012 0.009
-0.3 277.5 0.1105 0.016 0.0213
-0.3 292.5 0.0736 0.017 0.0201
-0.3 307.5 0.0443 0.0103 0.0256
-0.3 322.5 0.0877 0.0276 0.008
-0.3 352.5 0.0431 0.011 0.0012
-0.1 7.5 0.0675 0.0269 0.0474
-0.1 22.5 0.0512 0.0152 0.0017
-0.1 37.5 0.0738 0.015 0.0095
-0.1 52.5 0.0941 0.0225 0.0205
-0.1 67.5 0.0889 0.023 0.0237
-0.1 82.5 0.1123 0.0164 0.0146
-0.1 97.5 0.1246 0.0199 0.0129
-0.1 112.5 0.1168 0.0162 0.0157
-0.1 127.5 0.0882 0.0138 0.0077
-0.1 142.5 0.0441 0.008 0.0131
-0.1 157.5 0.0653 0.0084 0.0103
-0.1 172.5 0.0654 0.0069 0.0076
-0.1 187.5 0.0449 0.0055 0.0043
-0.1 202.5 0.0768 0.0087 0.0087
-0.1 217.5 0.0737 0.0107 0.0151
-0.1 232.5 0.0695 0.0115 0.0114
-0.1 247.5 0.0638 0.0097 0.0171
-0.1 262.5 0.1099 0.0147 0.0106
-0.1 277.5 0.0986 0.0169 0.0095
-0.1 292.5 0.1055 0.0402 0.0367
-0.1 322.5 0.06 0.0234 0.0056
0.1 22.5 0.0766 0.0209 0.0101
0.1 37.5 0.1583 0.0349 0.027
0.1 52.5 0.272 0.0759 0.1054
0.1 67.5 0.3043 0.0585 0.0546
0.1 82.5 0.2179 0.0465 0.0342
0.1 97.5 0.2484 0.0386 0.0671
0.1 112.5 0.1413 0.0255 0.021
0.1 127.5 0.0646 0.0159 0.0085
0.1 142.5 0.1035 0.0155 0.0159
0.1 157.5 0.1116 0.0157 0.0126
0.1 172.5 0.1014 0.0121 0.0169
0.1 187.5 0.0933 0.0117 0.012
0.1 202.5 0.0961 0.0144 0.0136
0.1 217.5 0.0872 0.0139 0.013
0.1 232.5 0.1038 0.018 0.0217
0.1 247.5 0.1116 0.0237 0.0222
0.1 262.5 0.1628 0.0362 0.0293
0.1 277.5 0.2949 0.0748 0.0533
0.1 292.5 0.2477 0.058 0.0415
0.1 322.5 0.1623 0.0687 0.04
0.3 22.5 0.0492 0.0103 0.0071
0.3 37.5 0.0922 0.0274 0.018
0.3 52.5 0.1458 0.0322 0.0324
0.3 67.5 0.2348 0.0376 0.0375
0.3 82.5 0.3449 0.0506 0.0719
0.3 97.5 0.364 0.0546 0.0515
0.3 112.5 0.3232 0.0545 0.0591
0.3 127.5 0.2076 0.0329 0.0575
0.3 157.5 0.2101 0.0278 0.0358
0.3 172.5 0.2118 0.0216 0.0359
0.3 187.5 0.2404 0.0231 0.0318
0.3 202.5 0.3129 0.0342 0.0431
0.3 217.5 0.2255 0.0307 0.0342
0.3 232.5 0.2075 0.0398 0.0526
0.3 247.5 0.2135 0.0463 0.0427
0.3 262.5 0.3324 0.1002 0.0397
0.3 277.5 0.409 0.0917 0.0875
0.3 292.5 0.26 0.0553 0.0415
0.3 307.5 0.2247 0.0517 0.0273
0.3 322.5 0.1898 0.0707 0.0567
0.3 337.5 0.0491 0.0224 0.0018
0.5 22.5 0.058 0.0192 0.0242
0.5 37.5 0.0807 0.0124 0.012
0.5 52.5 0.2188 0.0275 0.0389
0.5 67.5 0.3193 0.036 0.0326
0.5 82.5 0.4196 0.0489 0.0592
0.5 97.5 0.2933 0.039 0.0407
0.5 112.5 0.3589 0.0547 0.0514
0.5 127.5 0.3303 0.0546 0.1003
0.5 142.5 0.2229 0.0325 0.0455
0.5 157.5 0.2373 0.0283 0.0312
0.5 172.5 0.1595 0.0172 0.0227
0.5 187.5 0.1638 0.0186 0.029
0.5 202.5 0.2327 0.0272 0.0268
0.5 217.5 0.1327 0.0238 0.0142
0.5 232.5 0.2882 0.0719 0.073
0.5 247.5 0.1939 0.0465 0.0565
0.5 262.5 0.3431 0.0661 0.0404
0.5 277.5 0.4761 0.0805 0.1369
0.5 292.5 0.3835 0.0574 0.0261
0.5 307.5 0.2173 0.0322 0.0295
0.5 322.5 0.1237 0.0215 0.0243
0.7 7.5 0.2072 0.0652 0.1078
0.7 22.5 0.2009 0.0369 0.0279
0.7 37.5 0.1902 0.019 0.0227
0.7 52.5 0.2196 0.0208 0.0226
0.7 67.5 0.344 0.0394 0.0358
0.7 82.5 0.4753 0.0512 0.041
0.7 97.5 0.6359 0.0758 0.108
0.7 112.5 0.6715 0.0792 0.1371
0.7 127.5 0.6034 0.078 0.1239
0.7 142.5 0.5425 0.0745 0.088
0.7 157.5 0.8571 0.105 0.0792
0.7 172.5 0.9574 0.1171 0.1502
0.7 187.5 0.9996 0.1172 0.1392
0.7 202.5 0.9026 0.108 0.1452
0.7 217.5 0.9471 0.1202 0.1203
0.7 232.5 0.8067 0.1011 0.1017
0.7 247.5 0.5056 0.0731 0.0673
0.7 262.5 0.3154 0.1279 0.085
0.7 277.5 0.4797 0.0711 0.0924
0.7 292.5 0.2928 0.0413 0.0637
0.7 307.5 0.2105 0.0281 0.035
0.7 322.5 0.1416 0.0211 0.0238
0.7 337.5 0.1131 0.0288 0.0131
0.7 352.5 0.2654 0.0824 0.0456
0.9 7.5 0.3322 0.0211 0.0483
0.9 22.5 0.2818 0.0202 0.0319
0.9 37.5 0.358 0.0257 0.0617
0.9 52.5 0.3725 0.0293 0.0397
0.9 67.5 0.4585 0.0355 0.0637
0.9 82.5 0.4787 0.0398 0.073
0.9 97.5 0.4816 0.0364 0.0557
0.9 112.5 0.3269 0.0225 0.041
0.9 127.5 0.3253 0.0212 0.0347
0.9 142.5 0.4014 0.0254 0.0481
0.9 157.5 0.4262 0.0271 0.0517
0.9 172.5 0.3975 0.0255 0.0479
0.9 187.5 0.368 0.0238 0.0415
0.9 202.5 0.3856 0.0251 0.053
0.9 217.5 0.4174 0.0263 0.0503
0.9 232.5 0.3408 0.0235 0.0412
0.9 247.5 0.3631 0.0239 0.0419
0.9 277.5 0.4542 0.041 0.0482
0.9 307.5 0.3287 0.0273 0.0307
0.9 322.5 0.3547 0.0262 0.0395
0.9 337.5 0.2796 0.0205 0.0342
0.9 352.5 0.3449 0.0221 0.037