Measurement E151M1633

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:	0.0424
Q²:	0.0415 GeV²
W:	1535.0 GeV
E_beam:	1.3383 GeV
ε:	0.6677

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty	syst. uncert.
0.55	138.0	0.2083	0.7698	0.0325
0.55	210.0	-0.7745	0.9439	0.0553
0.55	222.0	1.2537	0.8639	0.0809
0.55	234.0	-0.3368	0.8846	0.0362
0.55	246.0	-0.7236	0.7539	0.0527
0.65	138.0	-0.1556	0.7905	0.0314
0.65	150.0	-0.5372	0.7756	0.044
0.65	162.0	-0.0055	0.8825	0.03
0.65	222.0	-0.1207	0.697	0.0309
0.65	234.0	0.96	0.6823	0.0649
0.65	246.0	0.0149	0.9472	0.03
0.75	222.0	-1.0598	0.7871	0.0702
0.75	234.0	-1.386	0.6834	0.0883
0.75	246.0	-0.9609	0.7265	0.0649
0.85	126.0	-0.0553	0.9041	0.0302
0.85	210.0	-1.9331	0.8006	0.1197
0.85	222.0	-0.2452	0.8181	0.0334
0.85	234.0	-0.2223	0.7087	0.0328
0.85	246.0	-0.2734	0.6799	0.0342
0.45	30.0	0.6733	1.3609	0.0493
0.45	234.0	-1.1136	1.0327	0.0714
0.55	126.0	0.652	1.0859	0.0483
0.55	138.0	-0.7525	1.0355	0.0531
0.55	210.0	-0.7386	1.0284	0.0524
0.55	222.0	-0.7507	1.1666	0.053
0.55	234.0	0.4871	0.9944	0.0413
0.55	246.0	-0.0138	0.954	0.03
0.65	150.0	0.2246	1.1457	0.0327
0.65	210.0	1.2882	0.9619	0.0807
0.65	222.0	-0.4459	1.1194	0.0397
0.65	234.0	2.4591	2.4591	0.1461
0.65	246.0	-2.0344	0.6291	0.122
0.75	162.0	-1.5027	1.141	0.0924
0.75	210.0	-0.4444	1.1588	0.0396
0.75	222.0	0.1866	1.1558	0.0319
0.75	234.0	-0.7217	0.857	0.0516
0.75	246.0	-0.8939	1.0766	0.06
0.85	210.0	-0.5754	0.9221	0.0449
0.85	222.0	0.6153	0.8749	0.0467
0.85	234.0	-1.1587	0.8129	0.0738
0.85	246.0	-1.3096	0.6886	0.0818
0.85	258.0	-2.7098	2.7098	0.1604
0.95	234.0	-0.0365	1.0735	0.0301
0.95	246.0	-0.9446	0.9326	0.0626

CLAS Physics Database