CLAS Physics Database

Measurement E151M881

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: 0.2172
Q2: 0.2445 GeV2
W: 1565.0 GeV
Ebeam: 2.2596 GeV
ε: 0.8293

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] AUL uncertainty syst. uncert.
0.95 234.0 0.3124 2.3664 0.0416
0.95 270.0 1.0897 2.2629 0.1049
0.95 282.0 7.3979 7.3979 0.6834
0.75 114.0 0.1484 0.7211 0.0315
0.95 222.0 1.7693 1.4288 0.1199