CLAS Physics Database

Measurement E151M3528

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: 0.0904
Q2: 0.0844 GeV2
W: 1595.0 GeV
Ebeam: 2.999 GeV
ε: 0.9285

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] ALU uncertainty syst. uncert.
0.55 114.0 -0.0792 0.2838 0.03
0.65 114.0 -0.3109 0.2114 0.0306
0.65 126.0 0.1521 0.2499 0.0302
0.75 114.0 -0.1134 0.2652 0.0301
0.75 126.0 0.1002 0.2533 0.0301
0.75 138.0 -0.0616 0.2664 0.03
0.75 210.0 0.1825 0.2578 0.0302
0.75 222.0 0.023 0.2567 0.03
0.75 234.0 -0.0694 0.2676 0.03
0.85 90.0 0.1315 0.2301 0.0301
0.85 102.0 0.003 0.2319 0.03
0.85 114.0 0.6194 0.2106 0.0325
0.85 210.0 -0.126 0.2622 0.0301
0.85 222.0 -0.5078 0.2335 0.0317
0.85 234.0 0.2117 0.226 0.0303
0.85 246.0 -0.4098 0.2217 0.0311
0.95 246.0 -0.0798 0.2423 0.03