CLAS Physics Database

Measurement E151M3244

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: 0.5631
Q2: 0.348 GeV2
W: 1385.0 GeV
Ebeam: 2.2596 GeV
ε: 0.8824

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] ALU uncertainty syst. uncert.
0.85 102.0 0.1906 0.2549 0.0302
0.85 258.0 0.0253 0.2379 0.03
0.85 282.0 0.7209 0.1842 0.0333
0.85 294.0 0.117 0.24 0.0301
0.95 294.0 0.3595 0.2429 0.0308