CLAS Physics Database

Measurement E151M2865

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: 0.0093
Q2: 0.0101 GeV2
W: 1565.0 GeV
Ebeam: 1.3383 GeV
ε: 0.6486

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] ALU uncertainty syst. uncert.
0.65 222.0 -0.0122 0.2815 0.03
0.75 210.0 0.1206 0.2901 0.0301
0.75 234.0 -0.2143 0.2788 0.0303
0.55 42.0 -0.6541 0.2848 0.0327
0.65 210.0 -0.2586 0.3457 0.0304
0.75 234.0 0.3909 0.3902 0.031
0.85 222.0 0.1279 0.42 0.0301