CLAS Physics Database

Measurement E151M2905

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: ALU
εL: 0.0266
Q2: 0.0496 GeV2
W: 1625.0 GeV
Ebeam: 1.3383 GeV
ε: 0.499

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] ALU uncertainty
0.55 222.0 -0.0457 0.2866
0.65 222.0 0.1478 0.2646
0.55 234.0 0.8326 0.1947
0.75 222.0 -0.0375 0.3765
0.75 234.0 -0.3544 0.3216
0.85 222.0 -0.1138 0.4155