CLAS Physics Database

Measurement E151M1082

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: 0.3792
Q2: 0.5925 GeV2
W: 1565.0 GeV
Ebeam: 2.999 GeV
ε: 0.8489

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] AUL uncertainty
0.55 90.0 -0.8974 0.7431
0.65 102.0 -0.5075 0.7581
0.75 54.0 -0.0842 0.8159
0.75 102.0 0.4108 0.9739
0.75 270.0 1.4363 0.9919
0.85 102.0 -0.1537 0.8515
0.85 210.0 0.4842 0.9629
0.85 234.0 0.3596 0.818
0.85 270.0 -0.3247 0.7304
0.95 294.0 -0.536 0.6434
0.95 306.0 1.1149 0.6582
0.95 318.0 -0.6 0.6577