CLAS Physics Database

Measurement E151M3602

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: 0.1941
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] ALU uncertainty syst. uncert.
0.85 78.0 -0.3074 0.2591 0.0306
0.85 210.0 0.2417 0.2732 0.0304
0.95 222.0 0.2971 0.2341 0.0306
0.95 234.0 0.2807 0.2567 0.0305
0.95 246.0 0.4043 0.2361 0.0311
0.95 258.0 0.0868 0.251 0.0301
0.95 270.0 -0.4491 0.2466 0.0313