CLAS Physics Database

Measurement E151M3467

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: 0.1991
Q2: 0.101 GeV2
W: 1445.0 GeV
Ebeam: 2.999 GeV
ε: 0.9591

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] ALU uncertainty
0.35 78.0 -0.655 0.2075
0.75 102.0 0.5188 0.2118
0.75 246.0 0.2441 0.2467
0.75 258.0 0.1748 0.3047
0.85 126.0 0.0375 0.2833
0.85 246.0 0.0048 0.2979