CLAS Physics Database

Measurement E151M915

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: 0.1016
Q2: 0.1435 GeV2
W: 1655.0 GeV
Ebeam: 2.2596 GeV
ε: 0.8058

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] AUL uncertainty syst. uncert.
0.85 90.0 -0.5443 1.1724 0.0585
0.85 222.0 1.0958 0.8239 0.0779
0.85 234.0 0.6467 0.6578 0.0586