Measurement E151M3191

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:	0.7987
Q²:	0.205 GeV²
W:	1265.0 GeV
E_beam:	2.2596 GeV
ε:	0.9462

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LU	uncertainty	syst. uncert.
0.55	282.0	-0.1694	0.2576	0.0302
0.65	282.0	0.0256	0.2131	0.03
0.75	90.0	-0.2018	0.2552	0.0303
0.75	102.0	-0.145	0.2618	0.0301
0.75	258.0	0.2923	0.2258	0.0306
0.75	270.0	-0.0261	0.2176	0.03
0.75	282.0	-0.0349	0.2049	0.03
0.75	294.0	0.1573	0.225	0.0302
0.85	78.0	-0.4609	0.1941	0.0314
0.85	90.0	0.0307	0.2346	0.03
0.85	102.0	0.4943	0.1829	0.0316
0.85	246.0	0.3247	0.2366	0.0307
0.85	258.0	-0.2008	0.2009	0.0303
0.85	282.0	0.0353	0.2302	0.03
0.85	294.0	-0.2351	0.2249	0.0304
0.95	78.0	0.0171	0.2371	0.03
0.95	90.0	0.6037	0.2233	0.0323
0.95	126.0	-0.1838	0.2233	0.0302
0.95	270.0	-0.2237	0.2379	0.0303
0.35	66.0	0.0106	0.2664	0.03
0.55	270.0	-0.0248	0.2421	0.03
0.55	282.0	0.5161	0.2148	0.0317
0.65	282.0	-0.4559	0.2384	0.0314
0.75	270.0	-0.0255	0.2383	0.03
0.75	282.0	0.1243	0.2463	0.0301
0.85	114.0	-0.1893	0.2581	0.0302
0.85	126.0	-0.0261	0.263	0.03
0.85	258.0	0.1897	0.2628	0.0302
0.85	270.0	-0.161	0.235	0.0302
0.85	282.0	0.5152	0.1974	0.0317
0.85	294.0	0.3027	0.2256	0.0306
0.95	114.0	0.2216	0.0301	None
0.95	138.0	-0.0454	0.2481	0.03

CLAS Physics Database