CLAS Physics Database

Measurement E151M3139

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: 0.0167
Q2: 0.0245 GeV2
W: 1685.0 GeV
Ebeam: 1.9889 GeV
ε: 0.764

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] ALU uncertainty syst. uncert.
0.65 222.0 -0.2397 0.2428 0.0304
0.75 198.0 -0.1723 0.2345 0.0302
0.75 210.0 -0.3568 0.2449 0.0308
0.75 270.0 -0.4092 0.2206 0.0311
0.85 138.0 -0.0259 0.2767 0.03