CLAS Physics Database

Measurement E151M422

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: 0.011
Q2: 0.0121 GeV2
W: 1565.0 GeV
Ebeam: 1.3383 GeV
ε: 0.6467

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] AUL uncertainty syst. uncert.
0.55 210.0 0.4709 0.6789 0.0418
0.65 222.0 0.7693 0.6899 0.0563
0.75 222.0 -0.1677 0.6141 0.0317
0.85 210.0 0.5168 0.6743 0.0439
0.45 42.0 0.1545 1.0957 0.0314
0.65 222.0 -0.2814 0.7928 0.0345
0.75 210.0 -0.7359 0.8304 0.0535
0.75 222.0 0.8449 1.2273 0.0591
0.85 222.0 -0.0172 0.9877 0.03