Measurement E151M2399

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:	0.077
Q²:	0.1715 GeV²
W:	1805.0 GeV
E_beam:	2.999 GeV
ε:	0.8287

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty
0.55	114.0	-0.5731	1.0495
0.75	90.0	-0.7528	1.1431
0.75	102.0	0.1344	1.1511
0.75	210.0	-0.5798	0.8705
0.85	90.0	-0.3851	0.9574
0.85	102.0	0.4384	0.9848
0.85	126.0	-0.5294	1.0334
0.85	174.0	0.4378	1.0347
0.85	186.0	-0.2875	0.8996
0.85	198.0	-0.3518	0.8046
0.85	210.0	0.1717	0.8647
0.85	222.0	-0.0448	0.9257
0.85	234.0	0.9783	0.8
0.95	186.0	-0.2092	0.9881
0.95	198.0	-1.3606	0.9698
0.95	210.0	0.9768	0.9078
0.95	222.0	-0.5529	1.0354

CLAS Physics Database