Measurement E151M2398

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:	0.0664
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_LL	uncertainty
0.65	270.0	-0.2679	1.0419
0.75	186.0	-0.0752	1.0052
0.75	198.0	1.8602	0.9567
0.75	210.0	1.6794	0.9197
0.75	222.0	0.6309	1.0386
0.75	270.0	-0.622	0.9943
0.75	282.0	-0.6247	0.9625
0.85	90.0	0.6046	0.7345
0.85	102.0	0.6563	0.8107
0.85	114.0	-1.9462	0.7907
0.85	126.0	-0.0762	1.0812
0.85	174.0	-2.062	0.8727
0.85	186.0	0.0328	0.9906
0.85	198.0	-1.2999	0.7745
0.85	210.0	0.3331	0.9039
0.85	222.0	-0.7085	0.9601
0.85	234.0	-0.0987	0.8858
0.95	198.0	-0.3851	1.0769
0.95	222.0	0.4197	0.9605

CLAS Physics Database