Measurement E151M1371

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:	0.0236
Q²:	0.0121 GeV²
W:	1415.0 GeV
E_beam:	1.0539 GeV
ε:	0.7141

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty
0.25	42.0	-2.3842	0.8294
0.35	30.0	-1.5595	0.9923
0.35	42.0	-0.5717	0.6939
0.35	54.0	-0.5886	0.7034
0.45	30.0	-0.9513	0.9133
0.45	42.0	-0.8914	0.5978
0.45	54.0	0.0709	0.6217
0.45	66.0	0.5507	0.8777
0.45	222.0	-0.5433	0.8309
0.45	234.0	-0.4135	0.7287
0.45	246.0	-0.4239	0.8629
0.55	18.0	0.8084	0.8779
0.55	30.0	1.3393	0.7784
0.55	42.0	-0.3437	0.5372
0.55	54.0	-0.1885	0.6216
0.55	66.0	-2.1461	0.7539
0.55	138.0	-0.1247	0.9262
0.55	150.0	0.6793	0.837
0.55	162.0	0.3603	0.8305
0.55	210.0	0.0214	0.9724
0.55	222.0	0.725	0.6574
0.55	234.0	-0.0587	0.7713
0.55	246.0	-1.0504	0.647
0.55	258.0	0.7914	0.7844
0.65	30.0	-1.335	0.9251
0.65	42.0	0.7865	0.9413
0.65	54.0	0.5198	0.876
0.65	138.0	-0.8257	1.0055
0.65	150.0	1.8448	0.6635
0.65	162.0	-1.4761	0.6996
0.65	210.0	-1.8524	0.7902
0.65	222.0	-1.9011	0.5043
0.65	234.0	-0.1894	0.5691
0.65	246.0	0.2708	0.5486
0.65	258.0	-1.0024	0.8058
0.75	42.0	-1.1118	0.9301
0.75	138.0	-1.0713	0.7972
0.75	150.0	-0.3199	0.9326
0.75	162.0	-0.0901	0.965
0.75	174.0	0.3994	0.9342
0.75	210.0	0.1646	0.792
0.75	222.0	-0.3784	0.6107
0.75	234.0	-0.048	0.6003
0.75	246.0	1.1158	0.5156
0.75	258.0	0.1807	0.8063
0.85	150.0	1.1565	0.847
0.85	210.0	0.4872	0.8222
0.85	222.0	0.0057	0.6317
0.85	234.0	-0.2666	0.5295
0.85	246.0	0.2744	0.4802
0.85	258.0	-0.0317	0.7039

CLAS Physics Database