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Measurement E151M631

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: AUL
εL: 0.1604
Q2: 0.1435 GeV2
W: 1535.0 GeV
Ebeam: 1.9889 GeV
ε: 0.8323

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] AUL uncertainty syst. uncert.
0.25 282.0 -0.1758 0.737 0.0319
0.35 282.0 0.4126 0.7644 0.0392
0.35 294.0 0.1361 0.7082 0.0311
0.45 282.0 2.073 0.6074 0.1303
0.45 294.0 0.3686 0.6176 0.0375
0.55 114.0 -0.5079 0.6567 0.0432
0.55 246.0 -0.0496 0.7795 0.0302
0.55 270.0 1.6881 0.7545 0.1075
0.55 282.0 0.5602 0.6859 0.0455
0.65 54.0 -0.4228 0.6644 0.0396
0.65 102.0 -0.2641 0.7292 0.0341
0.65 114.0 -0.4126 0.6655 0.0392
0.65 126.0 0.3014 0.6302 0.0352
0.65 150.0 1.224 0.841 0.0806
0.65 222.0 0.1759 0.7207 0.0319
0.65 234.0 2.5479 2.5479 0.1587
0.65 294.0 1.4215 0.8318 0.092
0.75 102.0 -0.4108 0.6874 0.0391
0.75 114.0 -0.6791 0.6861 0.0512
0.75 126.0 -0.1227 0.6136 0.0309
0.75 138.0 -1.4763 0.5543 0.0951
0.75 210.0 -0.1186 0.7513 0.0309
0.75 222.0 0.1498 0.5294 0.0314
0.75 234.0 1.1757 0.5955 0.0779
0.75 246.0 1.2316 0.5847 0.0811
0.75 258.0 -0.4427 0.6929 0.0404
0.75 282.0 2.5133 2.5133 0.1566
0.85 78.0 -0.1725 0.6997 0.0318
0.85 90.0 -0.091 0.5942 0.0305
0.85 114.0 -0.017 0.6696 0.03
0.85 138.0 -0.6446 0.6847 0.0495
0.85 198.0 2.2143 0.6783 0.1387
0.85 210.0 1.6346 0.7626 0.1044
0.85 222.0 0.3388 0.7403 0.0365
0.85 234.0 -0.2755 0.4903 0.0344
0.85 246.0 -0.0564 0.5894 0.0302
0.85 258.0 0.344 0.6372 0.0366
0.85 270.0 1.105 0.6978 0.0739
0.95 102.0 -0.6221 0.5477 0.0485
0.95 222.0 -0.8924 0.4792 0.0623
0.95 234.0 1.3219 0.5625 0.0862
0.95 258.0 1.4206 0.5283 0.0919
0.95 270.0 0.1591 0.5279 0.0315
Created in SINP MSU, CLAS Collaboration