CLAS Physics Database

Measurement E151M3616

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: 0.0354
Q2: 0.0707 GeV2
W: 1805.0 GeV
Ebeam: 2.999 GeV
ε: 0.851

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] ALU uncertainty
0.65 126.0 0.6215 0.2093
0.65 138.0 0.5019 0.2447
0.75 102.0 0.1909 0.262
0.75 114.0 -0.2324 0.2987
0.75 210.0 -0.2586 0.2348
0.75 222.0 -0.2136 0.2437
0.85 102.0 -0.2157 0.1831
0.85 114.0 -0.0157 0.1988
0.85 126.0 -0.1465 0.2633
0.85 174.0 0.0854 0.2636
0.85 186.0 0.0185 0.2065
0.85 198.0 -0.2932 0.2174
0.85 210.0 -0.272 0.258