Measurement E151M482

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:	0.9358
Q²:	0.205 GeV²
W:	1235.0 GeV
E_beam:	1.9889 GeV
ε:	0.9361

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_UL	uncertainty	syst. uncert.
0.25	66.0	0.4472	0.6202	0.0406
0.35	66.0	0.1357	0.446	0.0311
0.35	78.0	0.5511	0.6096	0.0451
0.45	66.0	-0.2406	0.5378	0.0334
0.45	78.0	-0.0884	0.5537	0.0305
0.45	282.0	-0.4178	0.4478	0.0394
0.45	294.0	0.1002	0.5651	0.0306
0.55	270.0	0.1617	0.5568	0.0316
0.55	282.0	-0.1506	0.5361	0.0314
0.55	294.0	-0.0118	0.5329	0.03
0.65	270.0	0.305	0.5048	0.0353
0.65	282.0	0.4382	0.4623	0.0402
0.65	294.0	1.6454	1.6454	0.105
0.75	90.0	0.2825	0.6211	0.0346
0.75	102.0	-0.44	0.4913	0.0403
0.75	258.0	-0.6798	0.4383	0.0513
0.75	270.0	0.688	0.4868	0.0517
0.75	282.0	0.2057	0.4435	0.0325
0.75	294.0	0.0082	0.5197	0.03
0.85	78.0	-0.3202	0.4057	0.0358
0.85	90.0	-0.4414	0.4119	0.0404
0.85	102.0	1.716	1.716	0.1092
0.85	114.0	-0.1867	0.4185	0.0321
0.85	258.0	-0.1756	0.4596	0.0319
0.85	270.0	0.5754	0.4939	0.0462
0.85	282.0	-0.0545	0.4828	0.0302
0.95	66.0	-0.0634	0.4144	0.0302
0.95	78.0	-0.1347	0.4814	0.0311
0.95	90.0	-0.3609	0.378	0.0372
0.95	102.0	-0.2607	0.377	0.034
0.95	114.0	-0.3411	0.3927	0.0365
0.95	126.0	-0.9646	0.3595	0.0662
0.95	138.0	-0.4519	0.4416	0.0408

CLAS Physics Database