CLAS Physics Database

Measurement E151M2418

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: ALL
εL: 0.0337
Q2: 0.0844 GeV2
W: 1865.0 GeV
Ebeam: 2.999 GeV
ε: 0.815

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] ALL uncertainty syst. uncert.
0.65 282.0 -0.1289 0.9705 0.0314
0.75 114.0 -1.8385 1.0357 0.1366
0.75 186.0 -0.7634 1.0838 0.063
0.75 270.0 -0.6261 0.9844 0.0544
0.85 102.0 -1.6007 0.898 0.1199
0.85 114.0 0.2758 0.8816 0.0361
0.85 126.0 0.9627 0.8423 0.076
0.85 138.0 -1.3634 1.0598 0.1033
0.85 186.0 0.1103 0.8067 0.031
0.85 198.0 -1.1072 0.7923 0.0857
0.85 210.0 0.2107 0.8098 0.0337
0.85 222.0 -0.5292 0.9198 0.0487