CLAS Physics Database

Measurement E151M1196

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: 0.0337
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] AUL uncertainty syst. uncert.
0.65 282.0 -0.7291 0.7556 0.0612
0.75 114.0 0.7865 1.0318 0.0648
0.75 186.0 0.7164 1.049 0.0603
0.75 270.0 -0.0145 0.8653 0.03
0.85 102.0 0.7164 0.8802 0.0603
0.85 114.0 0.486 0.7911 0.0465
0.85 126.0 -0.4134 0.7229 0.0426
0.85 138.0 -0.563 0.8999 0.0509
0.85 186.0 0.5598 0.7376 0.0507
0.85 198.0 -0.3033 0.697 0.0373
0.85 210.0 0.5199 0.7317 0.0484
0.85 222.0 -0.5132 0.7425 0.048