CLAS Physics Database

Measurement E151M3103

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: 0.0792
Q2: 0.0844 GeV2
W: 1595.0 GeV
Ebeam: 1.9889 GeV
ε: 0.8139

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] ALU uncertainty syst. uncert.
0.45 78.0 -0.2922 0.262 0.0306
0.45 282.0 0.4565 0.2459 0.0314
0.55 222.0 -0.2151 0.2583 0.0303
0.55 270.0 -0.0352 0.2419 0.03
0.55 282.0 0.1474 0.2793 0.0301
0.65 126.0 -0.1666 0.2519 0.0302
0.65 150.0 0.0654 0.2551 0.03
0.65 198.0 0.0955 0.289 0.0301
0.65 210.0 -0.1968 0.2828 0.0303
0.65 222.0 -0.1093 0.2154 0.0301
0.65 294.0 0.5955 0.1807 0.0323
0.75 126.0 -0.0589 0.2429 0.03
0.75 138.0 0.0778 0.2547 0.03
0.75 210.0 0.2283 0.2642 0.0303
0.75 222.0 -0.1915 0.2908 0.0302
0.75 234.0 0.2254 0.2067 0.0303
0.75 246.0 0.2626 0.2697 0.0305
0.75 270.0 -0.1119 0.2622 0.0301
0.75 282.0 0.0616 0.2135 0.03
0.75 294.0 0.0785 0.2155 0.03
0.85 102.0 0.0785 0.2488 0.03
0.85 114.0 0.2744 0.26 0.0305
0.85 210.0 -0.218 0.2712 0.0303
0.85 222.0 0.0479 0.1942 0.03
0.85 234.0 -0.2081 0.2083 0.0303
0.85 246.0 0.0299 0.2462 0.03
0.95 234.0 -0.0896 0.2867 0.0301