CLAS Physics Database

Measurement E151M3325

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: 0.2172
Q2: 0.2445 GeV2
W: 1565.0 GeV
Ebeam: 2.2596 GeV
ε: 0.8293

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] ALU uncertainty syst. uncert.
0.95 234.0 -0.2495 0.2621 0.0304
0.95 270.0 -0.6007 0.2297 0.0323
0.95 282.0 -0.3515 0.2342 0.0308
0.75 114.0 0.0784 0.2319 0.03
0.95 222.0 -0.0979 0.2555 0.0301