CLAS Physics Database

Measurement E151M924

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: 0.067
Q2: 0.101 GeV2
W: 1685.0 GeV
Ebeam: 2.2596 GeV
ε: 0.7993

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] AUL uncertainty
0.85 102.0 2.9912 2.2136
0.85 126.0 -1.5068 2.0789
0.85 210.0 1.0066 2.0155
0.65 294.0 -0.1713 0.5492
0.85 114.0 0.866 0.7189
0.85 234.0 0.791 0.7009