CLAS Physics Database

Measurement E151M3365

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: ALU
εL: 0.0417
Q2: 0.0593 GeV2
W: 1685.0 GeV
Ebeam: 2.2596 GeV
ε: 0.8141

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] ALU uncertainty
0.55 126.0 -0.0281 0.2619
0.55 222.0 0.3573 0.2294
0.65 126.0 -0.0659 0.2626
0.65 222.0 -0.1944 0.2567
0.75 198.0 0.0767 0.2564
0.75 210.0 -0.5682 0.2069
0.75 222.0 -0.1419 0.2606
0.75 270.0 0.5385 0.2088
0.75 282.0 0.4846 0.2051
0.85 126.0 -0.1933 0.2293
0.85 210.0 0.0016 0.2679
0.85 270.0 -0.1248 0.2413
0.45 270.0 0.3031 0.248
0.65 126.0 -0.1419 0.2631
0.65 210.0 -0.0991 0.232
0.65 282.0 -0.32 0.2241
0.75 198.0 0.5317 0.2101
0.75 210.0 -0.1129 0.2334
0.75 222.0 0.0742 0.2268
0.75 270.0 0.0563 0.229
0.75 282.0 0.1047 0.2267
0.85 114.0 0.1505 0.2127
0.85 234.0 0.1751 0.2294