Measurement E151M1035

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:	0.1739
Q²:	0.101 GeV²
W:	1475.0 GeV
E_beam:	2.999 GeV
ε:	0.9537

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_UL	uncertainty	syst. uncert.
0.25	54.0	-0.689	0.6611	0.0586
0.25	66.0	0.7923	0.8803	0.0652
0.25	294.0	-0.0326	0.8024	0.0301
0.35	78.0	-1.7049	0.419	0.1282
0.35	282.0	-0.1049	0.7064	0.031
0.35	294.0	-0.09	0.7739	0.0307
0.45	270.0	1.1136	0.7693	0.0867
0.45	282.0	2.3819	2.3819	0.1767
0.55	54.0	0.493	0.8598	0.0469
0.55	102.0	-1.3909	0.4972	0.106
0.55	126.0	-2.0607	0.465	0.1536
0.55	282.0	0.9722	0.7701	0.0771
0.65	90.0	0.1218	0.8548	0.0313
0.65	102.0	0.2478	0.8122	0.035
0.65	114.0	-1.0341	0.5692	0.0813
0.65	126.0	0.1758	0.7648	0.0326
0.65	138.0	-0.4916	0.8156	0.0468
0.65	234.0	2.4901	2.4901	0.1845
0.65	246.0	1.1875	0.8162	0.0918
0.75	102.0	-0.2	0.5944	0.0334
0.75	114.0	-0.6003	0.4965	0.0532
0.75	126.0	0.0355	0.7737	0.0301
0.75	138.0	-1.4584	0.5643	0.1107
0.75	210.0	0.7185	0.8475	0.0605
0.75	222.0	1.207	0.7208	0.0932
0.75	234.0	0.9357	0.682	0.0747
0.75	246.0	0.9927	0.8345	0.0785
0.75	258.0	-0.0724	0.5961	0.0305
0.85	78.0	1.0512	0.8432	0.0825
0.85	90.0	2.3961	1.4163	0.1777
0.85	114.0	-1.1133	0.4457	0.0867
0.85	126.0	-0.1597	0.5958	0.0322
0.85	138.0	-0.298	0.6822	0.0371
0.85	210.0	1.6833	1.0615	0.1266
0.85	222.0	-0.152	0.6249	0.032
0.85	234.0	0.7305	0.5965	0.0612
0.85	246.0	1.2576	0.5934	0.0967
0.85	258.0	1.3694	0.6024	0.1045
0.85	270.0	1.7624	0.7596	0.1323
0.95	222.0	-0.9724	0.5634	0.0771
0.95	246.0	-0.1605	0.629	0.0322
0.95	258.0	-0.5389	0.4762	0.0495
0.95	270.0	1.4818	0.64	0.1124

CLAS Physics Database