Measurement E151M689

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:	0.0602
Q²:	0.0844 GeV²
W:	1655.0 GeV
E_beam:	1.9889 GeV
ε:	0.7643

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_UL	uncertainty	syst. uncert.
0.45	282.0	0.6887	0.6155	0.0517
0.65	114.0	-0.5822	0.5605	0.0466
0.65	126.0	-0.649	0.6468	0.0498
0.65	198.0	0.8361	0.8122	0.0593
0.65	222.0	0.9132	0.7175	0.0634
0.65	282.0	1.465	0.7284	0.0945
0.65	294.0	-0.9858	0.5095	0.0673
0.75	66.0	-0.4212	0.6285	0.0395
0.75	198.0	0.3192	0.7332	0.0358
0.75	222.0	0.58	0.6889	0.0465
0.75	234.0	1.0322	0.667	0.0699
0.75	282.0	0.5379	0.5235	0.0445
0.75	294.0	-0.2441	0.5994	0.0335
0.85	114.0	-0.7972	0.5631	0.0572
0.85	210.0	0.9273	0.6915	0.0642
0.85	222.0	-0.1223	0.6282	0.0309
0.85	234.0	1.1515	0.804	0.0766
0.85	246.0	-0.8192	0.5586	0.0584

CLAS Physics Database