CLAS Physics Database

Measurement E151M3150

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: 0.0923
Q2: 0.1715 GeV2
W: 1685.0 GeV
Ebeam: 1.9889 GeV
ε: 0.6939

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] ALU uncertainty syst. uncert.
0.75 210.0 0.0746 0.2763 0.03
0.75 294.0 -0.3487 0.2672 0.0308
0.85 222.0 -0.2129 0.2396 0.0303
0.85 234.0 -0.3571 0.2227 0.0308
0.85 246.0 0.1243 0.2401 0.0301