CLAS Physics Database

Measurement E151M3526

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: 0.3792
Q2: 0.5925 GeV2
W: 1565.0 GeV
Ebeam: 2.999 GeV
ε: 0.8489

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] ALU uncertainty syst. uncert.
0.55 90.0 -0.1831 0.2722 0.0302
0.65 102.0 0.3147 0.247 0.0307
0.75 54.0 -0.3964 0.2573 0.031
0.75 102.0 -0.0138 0.2857 0.03
0.75 270.0 -0.4541 0.2229 0.0313
0.85 102.0 -0.0386 0.2745 0.03
0.85 210.0 -0.3829 0.2671 0.031
0.85 234.0 0.0164 0.2495 0.03
0.85 270.0 -0.2791 0.2469 0.0305
0.95 294.0 -0.728 0.1862 0.0333
0.95 306.0 -0.2891 0.2035 0.0306
0.95 318.0 0.0205 0.2794 0.03