Measurement E151M2121

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_LL
ε_L:	0.0738
Q²:	0.0844 GeV²
W:	1625.0 GeV
E_beam:	2.2596 GeV
ε:	0.845

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty	syst. uncert.
0.65	126.0	-1.2619	0.7931	0.1198
0.65	282.0	0.3615	0.8128	0.0448
0.65	294.0	-1.6831	0.6397	0.1576
0.75	282.0	-0.7032	0.6012	0.0713
0.75	294.0	0.5844	0.7951	0.0615
0.85	102.0	0.7936	0.9903	0.0789
0.85	114.0	0.3247	1.1301	0.0423
0.85	246.0	-0.889	0.9362	0.087
0.55	282.0	-1.0178	0.7032	0.0727
0.65	114.0	0.6884	0.8682	0.0539
0.65	210.0	0.5911	0.9531	0.0488
0.65	222.0	0.1077	0.9988	0.0308
0.65	294.0	-0.8913	0.6739	0.0653
0.75	126.0	-0.7676	0.8984	0.0583
0.75	222.0	0.0911	0.8317	0.0306
0.75	234.0	0.1567	0.914	0.0317
0.75	282.0	1.0203	0.7176	0.0728
0.85	102.0	-0.6121	0.9268	0.0499
0.85	114.0	-1.637	0.8416	0.1106
0.85	222.0	1.669	0.8983	0.1126
0.85	234.0	-0.7486	0.9714	0.0572
0.95	246.0	1.2846	1.4574	0.0888

CLAS Physics Database