CLAS Physics Database

Measurement E151M2714

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: 0.6504
Q2: 0.2915 GeV2
W: 1295.0 GeV
Ebeam: 1.3383 GeV
ε: 0.7501

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] ALU uncertainty syst. uncert.
0.75 138.0 -0.3774 0.3547 0.0309
0.75 246.0 -0.1081 0.4111 0.0301
0.85 102.0 -0.1243 0.3602 0.0301
0.85 114.0 -0.4863 0.431 0.0315
0.85 282.0 -0.4278 0.2992 0.0312
0.65 294.0 -0.0222 0.285 0.03
0.85 102.0 0.1699 0.248 0.0302
0.85 126.0 0.1816 0.2493 0.0302
0.85 162.0 -0.0883 0.2604 0.0301
0.85 270.0 -0.373 0.2524 0.0309
0.85 294.0 -0.1785 0.2738 0.0302