CLAS Physics Database

Measurement E151M158

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: 0.098
Q2: 0.0593 GeV2
W: 1415.0 GeV
Ebeam: 1.0539 GeV
ε: 0.6552

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] AUL uncertainty
0.15 42.0 -0.5732 0.7955
0.25 42.0 1.0016 0.6665
0.25 54.0 -0.2371 0.8047
0.35 30.0 1.7542 0.8688
0.35 42.0 1.5771 0.9199
0.35 54.0 0.8171 0.8706
0.45 30.0 0.2548 0.785
0.45 54.0 0.1749 0.6931
0.45 258.0 -0.0526 0.8355
0.55 150.0 0.913 0.9397
0.55 162.0 2.4217 0.8982
0.55 222.0 0.8822 0.8248
0.55 234.0 0.4065 0.6195
0.55 246.0 0.9757 0.5837
0.55 258.0 1.5292 0.5853
0.65 138.0 -0.0642 0.8561
0.65 150.0 0.7204 0.8885
0.65 162.0 -0.4197 0.8462
0.65 222.0 -0.3819 0.6047
0.65 234.0 0.3558 0.5526
0.65 246.0 0.0419 0.5586
0.65 258.0 0.0211 0.4687
0.65 270.0 0.4541 0.6876
0.75 138.0 0.4096 0.7089
0.75 150.0 -0.6272 0.6121
0.75 162.0 -0.3643 0.7216
0.75 174.0 -0.5431 0.7726
0.75 210.0 0.7894 0.8756
0.75 222.0 0.142 0.6235
0.75 234.0 -0.4956 0.5853
0.75 246.0 0.6307 0.4802
0.75 258.0 0.2097 0.4778
0.75 270.0 0.2881 0.6006
0.85 138.0 -0.7051 0.7702
0.85 150.0 -0.8819 0.6931
0.85 162.0 -0.1913 0.747
0.85 174.0 -0.4055 0.6637
0.85 234.0 0.4763 0.5272
0.85 246.0 -0.3278 0.4758
0.85 258.0 -0.0035 0.4442
0.85 270.0 -0.7468 0.4241
0.95 162.0 0.2117 0.6763
0.95 246.0 -0.5731 0.5605
0.95 258.0 -0.4023 0.5031