Measurement E151M605

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:	0.3319
Q²:	0.2915 GeV²
W:	1475.0 GeV
E_beam:	1.9889 GeV
ε:	0.8139

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_UL	uncertainty	syst. uncert.
0.45	282.0	0.4998	0.7631	0.0428
0.55	114.0	-0.9021	0.5999	0.0628
0.65	90.0	1.1685	0.8823	0.0775
0.65	102.0	-0.2222	0.6019	0.0329
0.65	114.0	-0.6142	0.6737	0.0481
0.65	246.0	-0.3209	0.6335	0.0359
0.65	258.0	-0.5941	0.5584	0.0471
0.75	90.0	0.8542	0.8238	0.0602
0.75	102.0	-0.3591	0.6908	0.0372
0.75	114.0	-0.9725	0.5808	0.0666
0.75	126.0	0.7035	0.7759	0.0525
0.75	246.0	0.5721	0.7545	0.0461
0.75	258.0	0.5608	0.636	0.0456
0.75	270.0	-0.081	0.6833	0.0304
0.85	114.0	0.7999	0.6351	0.0574
0.85	234.0	0.1531	0.6331	0.0314
0.85	246.0	0.1536	0.5541	0.0314
0.85	258.0	0.1593	0.6051	0.0315
0.85	270.0	-0.0002	0.6495	0.03
0.85	282.0	-0.6921	0.5769	0.0519
0.95	246.0	0.8528	0.6151	0.0602
0.95	258.0	0.7784	0.5672	0.0563
0.95	270.0	0.6552	0.6369	0.0501
0.95	282.0	-0.3168	0.4911	0.0357
0.95	294.0	-0.6107	0.5292	0.0479

CLAS Physics Database