CLAS Physics Database

Measurement E151M928

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: 0.0264
Q2: 0.0415 GeV2
W: 1715.0 GeV
Ebeam: 2.2596 GeV
ε: 0.7982

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] AUL uncertainty syst. uncert.
0.75 210.0 0.7196 0.7416 0.0559
0.75 270.0 1.3989 0.6038 0.0966
0.75 282.0 -0.2841 0.5418 0.0353
0.85 114.0 0.0962 0.6395 0.0307
0.85 210.0 0.1424 0.712 0.0314
0.45 270.0 -0.2531 0.6376 0.038
0.85 114.0 -0.0764 0.9881 0.0308
0.85 126.0 -1.4784 0.7663 0.1397
0.85 210.0 0.9268 0.9973 0.0906