CLAS Physics Database

Measurement E151M713

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: AUL
εL: 0.0283
Q2: 0.0496 GeV2
W: 1715.0 GeV
Ebeam: 1.9889 GeV
ε: 0.722

Slice: cos(θπ+) =

Measurement data
cos(θπ+) φ(π+), [deg] AUL uncertainty
0.35 78.0 -0.4783 0.6561
0.35 282.0 0.1848 0.7491
0.65 198.0 0.2143 0.7121
0.65 282.0 0.8073 0.733
0.75 66.0 -0.0848 0.6066
0.75 210.0 0.3968 0.6454
0.75 270.0 -0.9101 0.4778
0.75 282.0 -0.0442 0.7032
0.85 114.0 -0.0081 0.5986
0.85 126.0 -0.0991 0.7228
0.85 198.0 0.5972 0.7079
0.85 222.0 0.265 0.6723