Measurement E151M1589

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:	0.0192
Q²:	0.0121 GeV²
W:	1475.0 GeV
E_beam:	1.3383 GeV
ε:	0.7749

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty
0.55	42.0	-0.9253	0.9446
0.55	138.0	-0.0761	0.9028
0.55	150.0	-1.1461	0.7028
0.55	162.0	-0.9613	0.7974
0.55	222.0	-0.0464	0.7713
0.55	234.0	-1.4462	0.8211
0.55	246.0	0.3934	0.7908
0.65	126.0	0.4538	0.7289
0.65	150.0	0.3181	0.7938
0.65	210.0	-0.476	0.9353
0.65	222.0	-0.6725	0.8096
0.65	234.0	-0.5439	0.6689
0.75	150.0	-0.8112	0.752
0.75	222.0	-1.0091	0.7007
0.75	234.0	-0.4293	0.6323
0.75	246.0	-0.3543	0.7124
0.85	210.0	0.6733	0.7451
0.85	222.0	-1.2946	0.6676
0.85	234.0	0.8669	0.7771
0.45	42.0	0.4803	1.1068
0.55	30.0	1.0076	1.0582
0.55	42.0	-1.9099	0.6982
0.55	138.0	-0.5693	1.09
0.55	210.0	0.2435	1.0873
0.55	222.0	0.2944	0.8667
0.55	234.0	-0.3516	0.9379
0.65	138.0	0.5053	1.0585
0.65	150.0	-0.3688	1.1078
0.65	162.0	-1.3539	0.9378
0.65	210.0	-1.3333	0.9135
0.65	222.0	1.0185	0.8229
0.65	234.0	-1.4036	0.7922
0.65	246.0	-1.1571	0.8949
0.75	210.0	-1.0725	1.0039
0.75	222.0	0.6464	0.7838
0.75	234.0	2.5007	2.5007
0.85	210.0	-1.6687	0.7212
0.85	222.0	-0.4927	0.8027
0.85	234.0	0.138	0.8188

CLAS Physics Database