Measurement E151M3076

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:	0.1828
Q²:	0.1715 GeV²
W:	1535.0 GeV
E_beam:	1.9889 GeV
ε:	0.8214

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LU	uncertainty	syst. uncert.
0.25	66.0	0.3053	0.2455	0.0306
0.35	294.0	0.248	0.2753	0.0304
0.45	282.0	0.0484	0.2617	0.03
0.55	114.0	-0.1808	0.2767	0.0302
0.55	270.0	0.0685	0.2829	0.03
0.55	282.0	-0.2534	0.2381	0.0304
0.65	114.0	-0.0364	0.2027	0.03
0.65	126.0	-0.0887	0.269	0.0301
0.65	222.0	0.0225	0.1974	0.03
0.65	234.0	-0.4335	0.205	0.0312
0.65	246.0	-0.3328	0.2324	0.0307
0.65	294.0	-0.1816	0.233	0.0302
0.75	102.0	0.2901	0.2065	0.0306
0.75	114.0	0.1091	0.2124	0.0301
0.75	126.0	0.0465	0.2403	0.03
0.75	138.0	0.5482	0.2232	0.0319
0.75	210.0	-0.5346	0.2034	0.0318
0.75	222.0	-0.0338	0.2617	0.03
0.75	234.0	0.1508	0.2017	0.0302
0.75	246.0	-0.0227	0.1992	0.03
0.75	258.0	-0.2818	0.2077	0.0305
0.85	78.0	0.5456	0.2444	0.0319
0.85	90.0	0.2803	0.212	0.0305
0.85	114.0	0.0963	0.2739	0.0301
0.85	138.0	0.1479	0.2462	0.0301
0.85	210.0	-0.0139	0.2334	0.03
0.85	222.0	-0.0577	0.2048	0.03
0.85	234.0	-0.0264	0.1825	0.03
0.85	246.0	0.0215	0.2444	0.03
0.85	258.0	-0.315	0.1819	0.0307
0.95	90.0	0.1978	0.2472	0.0303
0.95	198.0	0.0907	0.2716	0.0301
0.95	222.0	0.1171	0.281	0.0301
0.95	246.0	-0.1522	0.2128	0.0302
0.95	258.0	-0.0295	0.2208	0.03
0.95	270.0	-0.0012	0.2156	0.03

CLAS Physics Database