CLAS Physics Database

Measurement E151M455

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: 0.0102
Q2: 0.0171 GeV2
W: 1625.0 GeV
Ebeam: 1.3383 GeV
ε: 0.5318

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] AUL uncertainty syst. uncert.
0.75 222.0 1.0351 0.6926 0.0708
0.75 234.0 -0.2762 0.8619 0.0343
0.85 222.0 1.5715 1.457 0.0993
0.85 234.0 -0.7394 0.7812 0.0537