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	syst. uncert.
0.55	42.0	-0.9253	0.9446	0.0631
0.55	138.0	-0.0761	0.9028	0.0303
0.55	150.0	-1.1461	0.7028	0.075
0.55	162.0	-0.9613	0.7974	0.065
0.55	222.0	-0.0464	0.7713	0.0301
0.55	234.0	-1.4462	0.8211	0.0917
0.55	246.0	0.3934	0.7908	0.0382
0.65	126.0	0.4538	0.7289	0.0405
0.65	150.0	0.3181	0.7938	0.0355
0.65	210.0	-0.476	0.9353	0.0414
0.65	222.0	-0.6725	0.8096	0.0502
0.65	234.0	-0.5439	0.6689	0.0443
0.75	150.0	-0.8112	0.752	0.0571
0.75	222.0	-1.0091	0.7007	0.0675
0.75	234.0	-0.4293	0.6323	0.0395
0.75	246.0	-0.3543	0.7124	0.0368
0.85	210.0	0.6733	0.7451	0.0503
0.85	222.0	-1.2946	0.6676	0.0832
0.85	234.0	0.8669	0.7771	0.06
0.45	42.0	0.4803	1.1068	0.041
0.55	30.0	1.0076	1.0582	0.0658
0.55	42.0	-1.9099	0.6982	0.115
0.55	138.0	-0.5693	1.09	0.0447
0.55	210.0	0.2435	1.0873	0.0332
0.55	222.0	0.2944	0.8667	0.0345
0.55	234.0	-0.3516	0.9379	0.0363
0.65	138.0	0.5053	1.0585	0.042
0.65	150.0	-0.3688	1.1078	0.0369
0.65	162.0	-1.3539	0.9378	0.0842
0.65	210.0	-1.3333	0.9135	0.0831
0.65	222.0	1.0185	0.8229	0.0664
0.65	234.0	-1.4036	0.7922	0.087
0.65	246.0	-1.1571	0.8949	0.0737
0.75	210.0	-1.0725	1.0039	0.0692
0.75	222.0	0.6464	0.7838	0.0481
0.75	234.0	2.5007	2.5007	0.1485
0.85	210.0	-1.6687	0.7212	0.1016
0.85	222.0	-0.4927	0.8027	0.0415
0.85	234.0	0.138	0.8188	0.0311

CLAS Physics Database