CLAS Physics Database

Measurement E151M606

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: 0.3596
Q2: 0.348 GeV2
W: 1475.0 GeV
Ebeam: 1.9889 GeV
ε: 0.7924

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] AUL uncertainty syst. uncert.
0.65 126.0 0.1555 0.7788 0.0315
0.65 258.0 1.1131 0.7415 0.0744
0.75 102.0 -0.0182 0.7214 0.03
0.75 246.0 -0.3681 0.6575 0.0375
0.85 66.0 0.5784 0.7623 0.0464
0.85 270.0 -0.2862 0.603 0.0347
0.95 258.0 0.8301 0.6796 0.059