CLAS Physics Database

Measurement E151M3348

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: 0.1505
Q2: 0.205 GeV2
W: 1625.0 GeV
Ebeam: 2.2596 GeV
ε: 0.8051

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] ALU uncertainty syst. uncert.
0.75 114.0 -0.0565 0.2597 0.03
0.75 210.0 0.2202 0.2488 0.0303
0.85 210.0 -0.2831 0.2283 0.0305
0.85 246.0 -0.2332 0.2547 0.0304