CLAS Physics Database

Measurement E151M3650

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: 0.0356
Q2: 0.101 GeV2
W: 1895.0 GeV
Ebeam: 2.999 GeV
ε: 0.7924

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] ALU uncertainty syst. uncert.
0.75 270.0 0.0031 0.2717 0.03
0.85 102.0 0.0186 0.2236 0.03
0.85 114.0 0.1105 0.2427 0.0301
0.85 186.0 -0.2003 0.2567 0.0303
0.85 198.0 0.0251 0.252 0.03
0.85 210.0 -0.2468 0.2555 0.0304
0.85 222.0 -0.3093 0.233 0.0306