Measurement E151M3550

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_LU
ε_L:	0.2897
Q²:	0.496 GeV²
W:	1625.0 GeV
E_beam:	2.999 GeV
ε:	0.8443

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LU	uncertainty	syst. uncert.
0.55	90.0	0.2847	0.2748	0.0305
0.65	102.0	0.393	0.2635	0.031
0.65	114.0	-0.6076	0.2316	0.0324
0.75	234.0	0.0689	0.2527	0.03
0.75	258.0	0.1532	0.2682	0.0302
0.85	66.0	-0.5023	0.2423	0.0316
0.85	78.0	-0.1573	0.2893	0.0302
0.85	222.0	-0.3342	0.2532	0.0307
0.85	234.0	-0.0499	0.2392	0.03
0.85	246.0	-0.3039	0.2148	0.0306
0.85	258.0	0.1342	0.2284	0.0301
0.85	270.0	-0.4475	0.2458	0.0313
0.85	282.0	-0.0384	0.2775	0.03
0.95	234.0	-0.265	0.2347	0.0305
0.95	246.0	-0.0257	0.2548	0.03
0.95	258.0	-0.0281	0.2737	0.03
0.95	270.0	0.1198	0.2597	0.0301
0.95	282.0	-0.3965	0.2534	0.031
0.95	294.0	0.2948	0.2387	0.0306
0.95	306.0	-0.6446	0.1981	0.0327
0.95	318.0	0.0167	0.2734	0.03

CLAS Physics Database