CLAS Physics Database

Measurement E151M1197

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: AUL
εL: 0.0396
Q2: 0.101 GeV2
W: 1865.0 GeV
Ebeam: 2.999 GeV
ε: 0.8111

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] AUL uncertainty
0.65 198.0 1.0347 1.1119
0.75 102.0 0.7222 1.0195
0.75 114.0 1.1164 0.9983
0.75 198.0 0.5273 1.049
0.75 210.0 0.2428 0.8504
0.75 258.0 -0.714 0.7726
0.75 270.0 -0.1575 0.7768
0.75 282.0 0.3675 0.9032
0.85 102.0 -0.7799 0.6701
0.85 114.0 0.0015 0.6981
0.85 126.0 1.0397 0.9978
0.85 186.0 2.1295 1.0393
0.85 198.0 -1.4193 0.5565
0.85 210.0 0.6758 0.8289