Measurement E151M1267

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_LL
ε_L:	0.0837
Q²:	0.0143 GeV²
W:	1265.0 GeV
E_beam:	1.0539 GeV
ε:	0.8925

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty
0.25	42.0	0.4811	0.6925
0.25	54.0	-0.4369	0.7675
0.35	42.0	-0.5685	0.5919
0.35	54.0	-0.3144	0.5654
0.35	66.0	-0.4454	0.7566
0.45	30.0	-1.0025	0.5963
0.45	42.0	0.0825	0.5062
0.45	54.0	-0.5342	0.5753
0.45	258.0	-0.4264	0.6493
0.45	270.0	0.093	0.5788
0.55	30.0	-0.1909	0.7296
0.55	42.0	0.0321	0.5182
0.55	54.0	0.5156	0.6167
0.55	234.0	-0.5751	0.5289
0.55	246.0	0.024	0.4405
0.55	258.0	-0.3429	0.3652
0.55	270.0	0.3746	0.4162
0.55	282.0	0.242	0.6089
0.65	138.0	-0.4412	0.7205
0.65	150.0	0.0749	0.6762
0.65	162.0	0.4727	0.5757
0.65	174.0	-0.1493	0.531
0.65	186.0	-0.6457	0.6218
0.65	198.0	-0.19	0.6982
0.65	222.0	0.6418	0.5845
0.65	234.0	-0.0489	0.3982
0.65	246.0	-0.0305	0.3209
0.65	258.0	0.2697	0.2903
0.65	270.0	-0.1637	0.3721
0.65	282.0	-0.304	0.5809
0.75	138.0	-0.7398	0.5239
0.75	150.0	0.1937	0.5091
0.75	162.0	-0.1707	0.4705
0.75	174.0	0.3836	0.462
0.75	186.0	-0.8682	0.5493
0.75	198.0	-0.3957	0.5663
0.75	210.0	0.0322	0.5325
0.75	222.0	0.5944	0.4779
0.75	234.0	0.1419	0.3889
0.75	246.0	0.5152	0.303
0.75	258.0	0.084	0.2837
0.75	270.0	0.2124	0.3812
0.75	282.0	-0.4136	0.5898
0.85	138.0	0.9101	0.6207
0.85	150.0	-0.0674	0.6383
0.85	162.0	0.2817	0.583
0.85	174.0	0.2889	0.5546
0.85	186.0	-0.9892	0.5613
0.85	198.0	0.031	0.6603
0.85	222.0	-0.4393	0.4977
0.85	234.0	0.2235	0.3945
0.85	246.0	0.3486	0.3207
0.85	258.0	0.4802	0.4206
0.85	270.0	-0.3028	0.4954

CLAS Physics Database