Measurement E151M3000

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:	0.4157
Q²:	0.205 GeV²
W:	1385.0 GeV
E_beam:	1.9889 GeV
ε:	0.8894

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LU	uncertainty	syst. uncert.
0.25	66.0	0.0558	0.2574	0.03
0.35	66.0	0.0147	0.253	0.03
0.35	78.0	-0.1498	0.2631	0.0301
0.65	90.0	-0.1284	0.242	0.0301
0.65	102.0	-0.0854	0.1864	0.03
0.65	114.0	0.0099	0.26	0.03
0.65	258.0	-0.3107	0.2606	0.0306
0.65	270.0	0.1493	0.2579	0.0301
0.75	90.0	-0.0368	0.2201	0.03
0.75	102.0	0.0779	0.1956	0.03
0.75	114.0	0.0576	0.2032	0.03
0.75	126.0	0.3151	0.2105	0.0307
0.75	234.0	0.2335	0.2322	0.0304
0.75	246.0	-0.0597	0.2153	0.03
0.75	258.0	-0.0306	0.212	0.03
0.75	270.0	-0.1019	0.2145	0.0301
0.75	282.0	-0.4469	0.2391	0.0313
0.85	90.0	0.1943	0.2387	0.0303
0.85	102.0	-0.032	0.1949	0.03
0.85	114.0	0.2429	0.2185	0.0304
0.85	126.0	-0.2241	0.2267	0.0303
0.85	138.0	-0.0548	0.2791	0.03
0.85	222.0	-0.1349	0.254	0.0301
0.85	234.0	-0.0622	0.2645	0.03
0.85	246.0	0.0016	0.2064	0.03
0.85	258.0	-0.1475	0.2056	0.0301
0.85	270.0	-0.0	0.2035	0.03
0.85	282.0	-0.4383	0.1924	0.0313
0.95	66.0	-0.4889	0.2355	0.0316
0.95	102.0	-0.0834	0.2518	0.03
0.95	126.0	0.1362	0.2616	0.0301
0.95	138.0	-0.2201	0.2517	0.0303
0.95	222.0	0.01	0.2532	0.03
0.95	234.0	0.2192	0.2652	0.0303
0.95	246.0	0.1184	0.219	0.0301
0.95	258.0	0.0554	0.1924	0.03
0.95	270.0	-0.6054	0.1625	0.0324
0.95	282.0	0.0508	0.2045	0.03
0.95	294.0	-0.5015	0.2036	0.0316

CLAS Physics Database