CLAS Physics Database

Measurement E151M3640

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: 0.0337
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] ALU uncertainty syst. uncert.
0.65 282.0 -0.2079 0.2627 0.0303
0.75 114.0 -0.1684 0.2648 0.0302
0.75 186.0 -0.5249 0.2302 0.0318
0.75 270.0 -0.1863 0.2606 0.0302
0.85 102.0 0.0406 0.2397 0.03
0.85 114.0 -0.5858 0.1784 0.0322
0.85 126.0 0.2886 0.2128 0.0306
0.85 138.0 -0.1232 0.2805 0.0301
0.85 186.0 0.306 0.1914 0.0306
0.85 198.0 -0.3174 0.1983 0.0307
0.85 210.0 -0.2384 0.1971 0.0304
0.85 222.0 0.1706 0.2357 0.0302