Measurement E151M3156

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_LU
ε_L:	0.024
Q²:	0.0415 GeV²
W:	1715.0 GeV
E_beam:	1.9889 GeV
ε:	0.7259

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LU	uncertainty	syst. uncert.
0.45	270.0	0.1701	0.2623	0.0302
0.55	270.0	-0.3941	0.2775	0.031
0.65	126.0	-0.3944	0.2436	0.031
0.65	138.0	-0.3778	0.225	0.0309
0.65	198.0	0.0531	0.2816	0.03
0.65	222.0	0.1142	0.2529	0.0301
0.75	66.0	0.0629	0.2747	0.03
0.75	210.0	-0.1352	0.2628	0.0301
0.75	270.0	0.0008	0.2156	0.03
0.75	282.0	0.1467	0.2433	0.0301
0.85	114.0	-0.7672	0.176	0.0337
0.85	126.0	0.114	0.204	0.0301
0.85	138.0	-0.2885	0.2472	0.0305
0.85	198.0	0.3001	0.2664	0.0306
0.85	210.0	0.106	0.2822	0.0301
0.85	222.0	-0.3654	0.254	0.0309

CLAS Physics Database