Measurement E151M478

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:	0.6139
Q²:	0.101 GeV²
W:	1235.0 GeV
E_beam:	1.9889 GeV
ε:	0.9604

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_UL	uncertainty
0.35	78.0	-0.2988	0.5159
0.45	66.0	0.6643	0.6394
0.45	78.0	-0.2454	0.3523
0.45	282.0	0.202	0.5581
0.55	78.0	0.4826	0.4321
0.55	270.0	0.0533	0.4321
0.55	282.0	-0.2141	0.3835
0.65	258.0	0.4875	0.5739
0.65	270.0	0.4626	0.3715
0.65	282.0	0.1685	0.3979
0.75	102.0	0.3556	0.6179
0.75	114.0	0.1744	0.5439
0.75	258.0	-0.5184	0.3349
0.75	270.0	0.3945	0.3853
0.75	282.0	-0.2505	0.492
0.85	90.0	-0.7233	0.402
0.85	102.0	-0.295	0.3464
0.85	114.0	0.3008	0.393
0.85	126.0	0.6638	0.3817
0.85	138.0	0.364	0.4324
0.85	246.0	0.483	0.4456
0.85	258.0	-0.2966	0.3929
0.85	270.0	0.3691	0.4509
0.95	102.0	0.8349	0.3944
0.95	114.0	-0.4787	0.3126
0.95	126.0	0.2868	0.3935
0.95	138.0	0.7092	0.4868
0.95	150.0	0.2245	0.3828
0.95	162.0	-0.275	0.4301
0.95	174.0	-0.0319	0.4271
0.95	186.0	-0.4795	0.4077
0.95	198.0	0.0119	0.4863
0.95	210.0	0.9591	0.468
0.95	234.0	-0.1639	0.4752

CLAS Physics Database