CLAS Physics Database

Measurement E151M2305

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: ALL
εL: 0.3973
Q2: 0.7075 GeV2
W: 1565.0 GeV
Ebeam: 2.999 GeV
ε: 0.8262

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] ALL uncertainty syst. uncert.
0.85 258.0 -0.0593 0.9724 0.0303
0.85 270.0 -0.5769 0.8651 0.0515
0.85 294.0 -0.2382 0.9462 0.0346