Measurement E151M1176

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_UL
ε_L:	0.0664
Q²:	0.1435 GeV²
W:	1805.0 GeV
E_beam:	2.999 GeV
ε:	0.835

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_UL	uncertainty
0.65	270.0	-0.1547	0.8901
0.75	186.0	-0.3617	0.8271
0.75	198.0	-0.0048	0.883
0.75	210.0	-0.836	0.8058
0.75	222.0	-1.3527	0.7166
0.75	270.0	1.1481	0.9416
0.75	282.0	-0.4886	0.7886
0.85	90.0	-0.4573	0.61
0.85	102.0	0.5457	0.756
0.85	114.0	0.3984	0.8647
0.85	126.0	-1.0072	0.8125
0.85	174.0	-0.6919	0.8214
0.85	186.0	1.1865	0.9311
0.85	198.0	-0.4405	0.6366
0.85	210.0	-0.0429	0.7827
0.85	222.0	0.8405	0.9259
0.85	234.0	0.0725	0.7701
0.95	198.0	1.3954	0.9977
0.95	222.0	-0.6655	0.7463

CLAS Physics Database