Measurement E151M1168

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:	0.1279
Q²:	0.2915 GeV²
W:	1775.0 GeV
E_beam:	2.999 GeV
ε:	0.8175

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_UL	uncertainty	syst. uncert.
0.75	90.0	0.3865	0.8938	0.0412
0.85	78.0	-0.4267	0.8707	0.0433
0.85	90.0	-0.1218	0.8989	0.0313
0.85	102.0	-0.3586	0.8347	0.0398
0.85	186.0	1.5766	0.9419	0.1191
0.85	198.0	-0.6515	0.8452	0.0563
0.85	210.0	1.0901	0.911	0.0851
0.85	222.0	2.3087	0.9558	0.1714
0.85	234.0	-0.2596	0.7097	0.0355
0.95	186.0	1.1082	0.8577	0.0864
0.95	198.0	0.8243	0.9481	0.0673
0.95	210.0	0.8541	0.9249	0.0693
0.95	234.0	0.4196	0.7272	0.0429
0.95	246.0	-0.9521	0.5772	0.0758
0.95	258.0	1.6955	0.9461	0.1275

CLAS Physics Database