Measurement E151M644

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_UL
ε_L:	0.1057
Q²:	0.101 GeV²
W:	1565.0 GeV
E_beam:	1.9889 GeV
ε:	0.8288

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_UL	uncertainty
0.35	294.0	1.4585	0.8759
0.45	78.0	-0.2255	0.6888
0.45	126.0	0.3659	0.8637
0.45	282.0	-0.1798	0.7048
0.55	114.0	0.0649	0.819
0.55	126.0	-0.2289	0.6938
0.55	270.0	1.0356	0.8562
0.55	282.0	-1.0332	0.5302
0.65	102.0	-0.8806	0.713
0.65	114.0	-0.5704	0.6069
0.65	126.0	0.4618	0.6465
0.65	138.0	-1.1045	0.6361
0.65	198.0	0.5176	0.8778
0.65	222.0	1.1022	0.658
0.65	234.0	0.7686	0.6241
0.65	294.0	0.5665	0.7093
0.75	114.0	-1.378	0.524
0.75	126.0	0.4861	0.6715
0.75	138.0	-0.572	0.617
0.75	150.0	-1.1834	0.5793
0.75	210.0	0.9008	0.7384
0.75	222.0	1.1411	0.6459
0.75	234.0	0.2062	0.5448
0.75	246.0	1.1587	0.6923
0.75	282.0	1.9277	0.6032
0.75	294.0	2.2185	0.7072
0.85	90.0	-0.5133	0.6713
0.85	114.0	-0.3417	0.6713
0.85	126.0	0.3306	0.8114
0.85	210.0	-1.2402	0.5439
0.85	222.0	0.6119	0.6121
0.85	234.0	0.351	0.5759
0.85	246.0	0.4102	0.6294
0.95	114.0	-0.8986	0.5854
0.95	222.0	1.2551	0.6267
0.95	234.0	0.9961	0.6726

CLAS Physics Database