CLAS Physics Database

Measurement E151M1192

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: 0.1041
Q2: 0.2915 GeV2
W: 1835.0 GeV
Ebeam: 2.999 GeV
ε: 0.783

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] AUL uncertainty syst. uncert.
0.85 90.0 -0.2217 0.8466 0.0341
0.85 222.0 -0.6761 0.8226 0.0578
0.95 198.0 0.5386 0.9667 0.0495