CLAS Physics Database

Measurement E151M2914

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: 1.0391
Q2: 0.1715 GeV2
W: 1205.0 GeV
Ebeam: 1.9889 GeV
ε: 0.9501

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] ALU uncertainty syst. uncert.
0.65 282.0 -0.2526 0.2421 0.0304
0.75 270.0 0.1782 0.2639 0.0302
0.95 114.0 0.0169 0.2573 0.03
0.95 126.0 -0.2691 0.2242 0.0305
0.95 138.0 0.1463 0.2831 0.0301