Measurement E151M637

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_UL
ε_L:	0.0344
Q²:	0.0291 GeV²
W:	1565.0 GeV
E_beam:	1.9889 GeV
ε:	0.8567

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_UL	uncertainty
0.35	78.0	-0.2499	0.712
0.35	270.0	-0.3737	0.6888
0.35	282.0	0.4078	0.7262
0.45	78.0	1.1543	0.8018
0.45	270.0	2.1483	0.7816
0.55	90.0	1.0591	1.0238
0.55	138.0	-0.5739	0.7968
0.55	222.0	2.0081	0.7253
0.55	270.0	1.2322	0.8151
0.55	282.0	-0.2948	0.6506
0.65	126.0	-0.645	0.7161
0.65	138.0	0.5433	0.6128
0.65	198.0	0.3334	0.8194
0.65	210.0	0.8188	0.6565
0.65	222.0	-0.281	0.6491
0.65	270.0	0.346	0.7879
0.75	78.0	0.5202	0.7978
0.75	126.0	-0.9107	0.7133
0.75	138.0	0.4083	0.7659
0.75	210.0	0.1823	0.6343
0.75	222.0	0.6638	0.7614
0.75	234.0	-0.6405	0.6112
0.75	270.0	-0.0878	0.7647
0.75	282.0	-0.844	0.5788
0.85	114.0	-0.2975	0.694
0.85	126.0	-1.2995	0.5656
0.85	210.0	0.3783	0.6415
0.85	222.0	0.1076	0.7935
0.85	234.0	0.651	0.6503

CLAS Physics Database