CLAS Physics Database

Measurement E151M2151

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: 0.0312
Q2: 0.0496 GeV2
W: 1715.0 GeV
Ebeam: 2.2596 GeV
ε: 0.7952

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] ALL uncertainty syst. uncert.
0.75 270.0 -0.8116 0.7494 0.0804
0.75 282.0 -0.2345 0.5098 0.0363
0.85 114.0 -1.4827 0.9969 0.1395
0.85 126.0 0.9336 0.7808 0.0677
0.85 210.0 -1.9522 0.793 0.1305