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Measurement E141M14

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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 : 1.735 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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Measured data:

cos(θ) φ,
degree
dσ/dΩ,
mcbn/rad
Data errors,
mcbn/rad
Systematic errors,
mcbn/rad
-0.9 15 0.4251 0.0693 0.0308
-0.9 45 0.5108 0.073 0.0337
-0.9 75 0.3611 0.0741 0.0656
-0.9 105 0.345 0.0613 0.0409
-0.9 135 0.359 0.078 0.0481
-0.9 165 0.257 0.0894 0.0924
-0.9 195 0.3583 0.1258 0.1534
-0.9 225 0.3888 0.0814 0.0505
-0.9 255 0.3554 0.0693 0.0482
-0.9 285 0.4454 0.076 0.0645
-0.9 315 0.3537 0.0522 0.0237
-0.9 345 0.3911 0.0634 0.0332
-0.7 15 0.2651 0.0428 0.0249
-0.7 45 0.3352 0.0438 0.0113
-0.7 75 0.3622 0.0518 0.0171
-0.7 105 0.2313 0.0271 0.0096
-0.7 135 0.1639 0.0244 0.0046
-0.7 165 0.1555 0.0305 0.0138
-0.7 195 0.1464 0.0251 0.0094
-0.7 225 0.2004 0.0283 0.0061
-0.7 255 0.3068 0.0376 0.0117
-0.7 285 0.2797 0.0384 0.0118
-0.7 315 0.2861 0.0384 0.0118
-0.7 345 0.2607 0.0402 0.0122
-0.5 15 0.2984 0.059 0.0095
-0.5 45 0.4206 0.0563 0.0107
-0.5 75 0.4722 0.0536 0.01
-0.5 105 0.4134 0.0383 0.0064
-0.5 135 0.4119 0.0451 0.005
-0.5 165 0.2697 0.0327 0.0068
-0.5 195 0.2781 0.0303 0.005
-0.5 225 0.3944 0.0477 0.0136
-0.5 255 0.3568 0.0348 0.0073
-0.5 285 0.4132 0.0477 0.0166
-0.5 315 0.3374 0.0501 0.0083
-0.5 345 0.281 0.0589 0.009
-0.3 15 0.2503 0.0549 0.0058
-0.3 45 0.4938 0.0774 0.0155
-0.3 75 0.7875 0.0779 0.0298
-0.3 105 0.6682 0.0583 0.0233
-0.3 135 0.4975 0.0507 0.0105
-0.3 165 0.3685 0.0328 0.005
-0.3 195 0.3912 0.0372 0.0083
-0.3 225 0.4561 0.0455 0.0154
-0.3 255 0.6349 0.0568 0.0216
-0.3 285 0.5608 0.0563 0.0206
-0.3 315 0.725 0.1099 0.0166
-0.1 15 0.4109 0.0612 0.0138
-0.1 45 0.6031 0.0817 0.0255
-0.1 75 1.0578 0.0955 0.0627
-0.1 105 1.041 0.0956 0.0732
-0.1 135 0.7787 0.0797 0.0406
-0.1 165 0.5578 0.0426 0.0165
-0.1 195 0.542 0.0407 0.0111
-0.1 225 0.6898 0.0679 0.0418
-0.1 255 0.7908 0.0672 0.0513
-0.1 285 0.9955 0.0937 0.0569
0.1 15 0.2383 0.0509 0.0178
0.1 45 0.7436 0.0807 0.0426
0.1 75 1.2068 0.0991 0.0858
0.1 105 0.9896 0.0813 0.0812
0.1 135 0.849 0.0827 0.0635
0.1 165 0.5884 0.047 0.0225
0.1 195 0.5727 0.0435 0.0241
0.1 225 0.7432 0.076 0.0522
0.1 255 0.851 0.0702 0.0679
0.1 285 1.0335 0.0967 0.0696
0.1 315 0.9118 0.1334 0.0656
0.1 345 0.2088 0.0589 0.0106
0.3 15 0.3091 0.0482 0.0171
0.3 45 0.6776 0.0511 0.0417
0.3 105 0.9843 0.0731 0.0849
0.3 135 0.823 0.0637 0.0673
0.3 165 0.4846 0.0348 0.0226
0.3 195 0.5677 0.0407 0.0269
0.3 225 0.7378 0.0634 0.0603
0.3 255 0.9705 0.0768 0.0832
0.3 285 1.2652 0.104 0.097
0.3 315 0.5972 0.0511 0.0369
0.3 345 0.4782 0.0975 0.0243
0.5 15 0.314 0.0397 0.0188
0.5 45 0.6824 0.0514 0.0505
0.5 75 1.4793 0.1145 0.1281
0.5 105 1.5331 0.1418 0.1449
0.5 135 0.9044 0.0787 0.0848
0.5 165 0.6323 0.0486 0.0397
0.5 195 0.6024 0.0471 0.0486
0.5 225 0.7871 0.0675 0.0703
0.5 255 1.279 0.1468 0.1204
0.5 285 1.2216 0.1191 0.1165
0.5 315 0.7282 0.0635 0.0559
0.5 345 0.2773 0.0396 0.0161
0.7 15 0.3688 0.0319 0.0194
0.7 45 0.6041 0.0554 0.0411
0.7 75 1.1073 0.087 0.089
0.7 105 1.489 0.1408 0.1448
0.7 135 1.384 0.1303 0.1175
0.7 165 0.9368 0.0821 0.06
0.7 195 0.9072 0.0774 0.065
0.7 225 1.1865 0.1074 0.1015
0.7 255 1.3563 0.1505 0.1291
0.7 285 1.1387 0.1107 0.0882
0.7 345 0.3665 0.0313 0.0182
0.9 15 0.7526 0.0479 0.0249
0.9 45 0.7797 0.0532 0.0202
0.9 75 0.9638 0.0644 0.0225
0.9 105 1.0104 0.0715 0.0438
0.9 135 1.1412 0.0847 0.0618
0.9 165 1.3262 0.1071 0.0628
0.9 195 1.1157 0.0881 0.0465
0.9 225 1.2202 0.09 0.0618
0.9 255 1.0976 0.0771 0.0421
0.9 285 0.9911 0.0665 0.0302
0.9 315 0.8276 0.0553 0.0225
0.9 345 0.7549 0.05 0.0207