Measurement E151M1355

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:	0.057
Q²:	0.0245 GeV²
W:	1385.0 GeV
E_beam:	1.0539 GeV
ε:	0.7466

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty
0.25	42.0	0.471	0.848
0.25	54.0	1.2345	0.8478
0.35	42.0	-0.24	0.6493
0.35	54.0	0.7975	0.6874
0.45	18.0	0.2002	0.9005
0.45	30.0	-0.5116	0.6819
0.45	42.0	0.4901	0.5404
0.45	54.0	-0.9404	0.7052
0.45	234.0	-1.0274	0.8316
0.45	246.0	-0.7132	0.8033
0.55	30.0	0.0341	0.7355
0.55	42.0	0.2407	0.5995
0.55	54.0	0.5856	0.6731
0.55	138.0	-0.4827	1.0582
0.55	150.0	1.5576	0.8556
0.55	162.0	0.9616	0.9621
0.55	222.0	-1.1772	0.7092
0.55	234.0	-0.0498	0.6212
0.55	246.0	-0.5158	0.5949
0.55	258.0	0.5905	0.6419
0.55	270.0	0.8079	0.9697
0.65	138.0	0.7932	0.7824
0.65	150.0	-0.1316	0.659
0.65	162.0	-0.8213	0.817
0.65	174.0	0.2642	0.9013
0.65	210.0	0.794	0.8845
0.65	222.0	0.1563	0.5893
0.65	234.0	0.6068	0.5695
0.65	246.0	-0.5486	0.4813
0.65	258.0	0.2079	0.5171
0.65	270.0	1.2069	0.7762
0.75	138.0	0.5415	0.7617
0.75	150.0	-0.684	0.7563
0.75	162.0	-0.9081	0.8166
0.75	210.0	0.377	0.947
0.75	222.0	-0.5974	0.6991
0.75	234.0	0.4619	0.5431
0.75	246.0	-0.917	0.4887
0.75	258.0	0.6805	0.4867
0.75	270.0	0.7099	0.7366
0.85	150.0	-0.7251	0.8934
0.85	222.0	-0.5603	0.562
0.85	234.0	-0.8407	0.4998
0.85	246.0	-0.7381	0.4592
0.85	258.0	1.0921	0.5314
0.85	270.0	0.943	0.6981
0.95	246.0	0.2412	0.5814

CLAS Physics Database