CLAS Physics Database

Measurement E151M703

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: 0.061
Q2: 0.101 GeV2
W: 1685.0 GeV
Ebeam: 1.9889 GeV
ε: 0.728

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] AUL uncertainty
0.65 126.0 -0.2129 0.5774
0.75 222.0 -0.3719 0.5834
0.75 234.0 1.2298 0.5285
0.75 282.0 -0.5268 0.4423
0.85 102.0 -0.2738 0.6172
0.85 114.0 -0.4232 0.5475
0.85 198.0 -0.0601 0.6049
0.85 210.0 0.5827 0.5408
0.85 222.0 1.0632 0.6069