CLAS Physics Database

Measurement E151M2380

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: ALL
εL: 0.1941
Q2: 0.496 GeV2
W: 1745.0 GeV
Ebeam: 2.999 GeV
ε: 0.7866

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] ALL uncertainty syst. uncert.
0.85 78.0 0.1454 1.0145 0.0318
0.85 210.0 0.0471 1.1654 0.0302
0.95 222.0 0.5202 0.8151 0.0482
0.95 234.0 -0.3368 0.881 0.0387
0.95 246.0 1.6354 0.8535 0.1223
0.95 258.0 0.0014 0.8593 0.03
0.95 270.0 -0.1889 0.9644 0.033