CLAS Physics Database

Measurement E151M2505

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: 0.0284
Q2: 0.0059 GeV2
W: 1295.0 GeV
Ebeam: 1.0539 GeV
ε: 0.8746

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] ALU uncertainty syst. uncert.
0.65 246.0 -0.2107 0.2191 0.0303
0.75 234.0 -0.47 0.2295 0.0314
0.75 246.0 0.1848 0.2295 0.0302
0.75 258.0 0.2317 0.2279 0.0304