Measurement E151M3089

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:	0.1221
Q²:	0.1205 GeV²
W:	1565.0 GeV
E_beam:	1.9889 GeV
ε:	0.821

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LU	uncertainty
0.35	66.0	-0.1605	0.274
0.35	270.0	0.0152	0.2847
0.45	282.0	-0.2415	0.2273
0.55	138.0	0.1795	0.2582
0.55	222.0	0.089	0.2515
0.55	234.0	0.3211	0.2616
0.65	114.0	0.573	0.197
0.65	126.0	-0.3101	0.2238
0.65	138.0	0.4467	0.2337
0.65	210.0	0.0132	0.2806
0.65	222.0	-0.254	0.2702
0.65	234.0	0.1528	0.2894
0.75	114.0	-0.2831	0.2047
0.75	126.0	-0.1141	0.2197
0.75	138.0	0.0661	0.2624
0.75	198.0	-0.4094	0.2399
0.75	210.0	0.2446	0.2012
0.75	222.0	0.3618	0.2189
0.75	234.0	0.1207	0.206
0.75	246.0	0.0017	0.2342
0.75	282.0	-0.1228	0.2736
0.85	90.0	0.0344	0.2327
0.85	102.0	0.715	0.2205
0.85	138.0	-0.2144	0.2362
0.85	210.0	-0.0842	0.2371
0.85	222.0	-0.1989	0.1973
0.85	234.0	0.249	0.1948
0.85	246.0	0.0402	0.2072
0.95	102.0	0.397	0.2496
0.95	210.0	-0.355	0.259
0.95	234.0	0.1347	0.2549
0.95	246.0	-0.1893	0.241

CLAS Physics Database