CLAS Physics Database

Measurement E151M3367

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: 0.0574
Q2: 0.0844 GeV2
W: 1685.0 GeV
Ebeam: 2.2596 GeV
ε: 0.8052

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] ALU uncertainty
0.65 138.0 0.0984 0.2648
0.75 222.0 -0.1165 0.2637
0.75 282.0 -0.6061 0.2106
0.85 114.0 -0.1659 0.259
0.85 210.0 -0.0859 0.2225
0.65 282.0 -0.2675 0.2526
0.75 270.0 0.0537 0.2478
0.75 282.0 -0.2592 0.2438
0.85 114.0 -0.3609 0.2449
0.85 234.0 0.2162 0.2541