CLAS Physics Database

Measurement E151M3502

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: 0.4832
Q2: 0.7075 GeV2
W: 1505.0 GeV
Ebeam: 2.999 GeV
ε: 0.8488

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] ALU uncertainty syst. uncert.
0.85 258.0 -0.0978 0.2527 0.0301
0.85 270.0 0.1303 0.266 0.0301
0.95 258.0 0.0952 0.2719 0.0301