CLAS Physics Database

Measurement E151M714

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: AUL
εL: 0.0333
Q2: 0.0593 GeV2
W: 1715.0 GeV
Ebeam: 1.9889 GeV
ε: 0.7172

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] AUL uncertainty
0.75 210.0 -0.4257 0.6394
0.75 222.0 0.624 0.7708
0.75 270.0 0.5426 0.6995
0.85 198.0 0.4498 0.6736
0.85 210.0 0.2671 0.7359
0.85 222.0 -0.2893 0.6377