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Measurement E151M686

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: 0.0374
Q2: 0.0496 GeV2
W: 1655.0 GeV
Ebeam: 1.9889 GeV
ε: 0.78

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] AUL uncertainty
0.35 78.0 0.0689 0.727
0.35 90.0 0.3419 0.7587
0.35 270.0 -0.7068 0.6088
0.45 78.0 -0.3689 0.5737
0.45 90.0 0.5598 0.7976
0.45 138.0 -0.0296 0.74
0.45 258.0 0.9338 0.7673
0.45 270.0 0.099 0.4923
0.45 282.0 1.2671 0.6867
0.55 114.0 -0.4434 0.6806
0.55 126.0 -0.9241 0.6344
0.55 138.0 0.3798 0.6991
0.55 210.0 0.9095 0.7908
0.55 258.0 1.688 0.6579
0.55 270.0 0.791 0.5591
0.55 282.0 -0.9043 0.537
0.65 138.0 0.2995 0.6521
0.65 150.0 -0.7586 0.6301
0.65 210.0 0.1076 0.6052
0.65 222.0 1.6202 0.6081
0.65 234.0 1.1953 0.7236
0.65 282.0 -0.4123 0.6404
0.65 294.0 0.029 0.6567
0.75 66.0 -0.0817 0.5864
0.75 78.0 -0.3886 0.6006
0.75 138.0 -0.1501 0.7246
0.75 198.0 1.4918 0.5827
0.75 210.0 0.172 0.545
0.75 222.0 0.6055 0.5041
0.75 234.0 -0.4501 0.6075
0.75 258.0 0.6389 0.6631
0.75 270.0 0.1483 0.5206
0.75 282.0 0.2714 0.4604
0.75 294.0 -0.3042 0.5596
0.85 102.0 0.7435 0.6753
0.85 114.0 -1.0003 0.4784
0.85 126.0 -0.2255 0.5883
0.85 198.0 1.7461 0.6363
0.85 210.0 0.6226 0.6657
0.85 222.0 -0.5082 0.4686
0.85 234.0 0.7157 0.5941
0.85 246.0 0.2791 0.6906
0.95 222.0 -0.036 0.614
Created in SINP MSU, CLAS Collaboration