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Measurement E151M1800

Experiment: EG4
Year: 2016

Experiment comment:

Final asymmetry results for the ep-> e pi+ (n) channel extracted from CLAS/EG4 data obtained using a longitudinally polarized beam and a longitudinally polarized NH3 target (CAA HS07-02).
Spokesperson: Xiaochao Zheng
Reaction: ep → π+n
Polarization: beam (longitudinal), target (longitudinal)
Quantity: ALL
εL: 0.0728
Q2: 0.0348 GeV2
W: 1445.0 GeV
Ebeam: 1.9889 GeV
ε: 0.9175

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] ALL uncertainty syst. uncert.
0.25 66.0 2.12 0.6164 0.1319
0.25 78.0 0.0412 0.8186 0.0301
0.25 294.0 -1.6243 0.6937 0.1029
0.35 54.0 0.7629 0.7077 0.0551
0.35 66.0 1.2769 0.5347 0.083
0.35 78.0 -0.0263 0.5687 0.03
0.35 90.0 0.166 0.7873 0.0316
0.35 270.0 -0.1272 0.7391 0.031
0.35 282.0 0.1646 0.5502 0.0316
0.35 294.0 -0.638 0.5624 0.0489
0.45 66.0 -0.8569 0.5835 0.06
0.45 78.0 0.1357 0.4845 0.0311
0.45 90.0 -0.4172 0.6744 0.0392
0.45 258.0 -0.5137 0.7702 0.0432
0.45 270.0 0.5796 0.5186 0.0462
0.45 282.0 -0.2575 0.4858 0.0338
0.45 294.0 -0.3028 0.5283 0.0352
0.45 306.0 -0.3835 0.6952 0.0379
0.45 330.0 -0.0244 0.8243 0.03
0.55 66.0 -0.726 0.7381 0.0532
0.55 78.0 -0.3145 0.5312 0.0355
0.55 90.0 -0.887 0.5606 0.0616
0.55 102.0 1.7691 0.5705 0.1113
0.55 114.0 0.0899 0.7558 0.0305
0.55 126.0 0.4681 0.6667 0.0413
0.55 138.0 0.3759 0.7983 0.0377
0.55 222.0 0.894 0.6686 0.0619
0.55 234.0 -0.5027 0.6241 0.0428
0.55 246.0 0.0007 0.624 0.03
0.55 258.0 -0.5972 0.6763 0.047
0.55 270.0 0.5586 0.5299 0.0452
0.55 282.0 -0.1549 0.4523 0.0314
0.55 294.0 0.4983 0.5374 0.0426
0.65 66.0 0.0431 0.7111 0.0301
0.65 78.0 0.8683 0.612 0.0606
0.65 90.0 1.3177 0.7534 0.0853
0.65 102.0 -0.2036 0.8567 0.0324
0.65 114.0 -0.4494 0.6326 0.0405
0.65 126.0 -0.5024 0.4948 0.0427
0.65 138.0 0.933 0.5789 0.064
0.65 150.0 -0.3228 0.7512 0.0358
0.65 198.0 0.1062 0.7434 0.0307
0.65 210.0 0.2649 0.6993 0.034
0.65 222.0 0.5711 0.4952 0.0458
0.65 234.0 0.0727 0.5264 0.0303
0.65 246.0 0.7117 0.6242 0.0525
0.65 258.0 -0.003 0.5867 0.03
0.65 270.0 0.4418 0.6274 0.0402
0.65 282.0 0.9599 0.6398 0.0654
0.65 294.0 0.3089 0.6827 0.0354
0.75 66.0 -0.2302 0.8653 0.0331
0.75 78.0 0.3685 0.5995 0.0374
0.75 102.0 1.2039 0.8163 0.0789
0.75 114.0 0.6451 0.5671 0.0493
0.75 126.0 -0.4361 0.4861 0.04
0.75 138.0 0.6778 0.5507 0.0509
0.75 150.0 -0.0076 0.6502 0.03
0.75 162.0 0.2865 0.8092 0.0347
0.75 198.0 -1.118 0.6561 0.0741
0.75 210.0 -0.9894 0.5656 0.067
0.75 222.0 0.0384 0.5409 0.0301
0.75 234.0 0.1712 0.4267 0.0317
0.75 246.0 0.7273 0.5776 0.0533
0.75 258.0 -1.36 0.6873 0.0877
0.75 282.0 0.3756 0.5812 0.0377
0.75 294.0 -1.4074 0.682 0.0904
0.85 102.0 -0.6152 0.7509 0.0479
0.85 114.0 1.1154 0.6631 0.0739
0.85 126.0 0.8256 0.7494 0.0583
0.85 138.0 -1.5066 0.6441 0.0961
0.85 150.0 -0.0391 0.8239 0.0301
0.85 198.0 1.3382 0.7736 0.0865
0.85 210.0 -0.6209 0.6092 0.0481
0.85 222.0 -0.2511 0.4917 0.0336
0.85 234.0 -0.0206 0.491 0.03
0.85 246.0 0.3576 0.5262 0.037
0.85 258.0 -0.4571 0.6908 0.0408
0.95 222.0 -0.1708 0.6475 0.0317
0.95 246.0 0.2815 0.7559 0.0345
Created in SINP MSU, CLAS Collaboration