CLAS Physics Database

Measurement E151M2904

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: 0.0229
Q2: 0.0415 GeV2
W: 1625.0 GeV
Ebeam: 1.3383 GeV
ε: 0.5072

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] ALU uncertainty syst. uncert.
0.75 246.0 -0.4993 0.3408 0.0316
0.85 222.0 0.5304 0.3247 0.0318
0.65 234.0 0.1472 0.2826 0.0301
0.75 234.0 -0.1495 0.2737 0.0301