CLAS Physics Database

Measurement E151M3362

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: 0.0254
Q2: 0.0348 GeV2
W: 1685.0 GeV
Ebeam: 2.2596 GeV
ε: 0.8226

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] ALU uncertainty syst. uncert.
0.75 210.0 -0.1806 0.237 0.0302
0.75 270.0 0.2018 0.2665 0.0303
0.85 210.0 -0.1418 0.2577 0.0301