Measurement E151M3148

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:	A_LU
ε_L:	0.0705
Q²:	0.1205 GeV²
W:	1685.0 GeV
E_beam:	1.9889 GeV
ε:	0.7186

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LU	uncertainty
0.45	270.0	0.49	0.2518
0.55	270.0	0.0301	0.2617
0.65	138.0	-0.7935	0.1689
0.75	210.0	-0.2429	0.2667
0.75	222.0	-0.362	0.2563
0.75	282.0	-0.2322	0.2557
0.85	102.0	0.0285	0.2468
0.85	198.0	0.3624	0.2646
0.85	234.0	-0.2989	0.2349
0.85	246.0	-0.5006	0.2409
0.95	234.0	-0.1877	0.274

CLAS Physics Database