Measurement E151M2133

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_LL
ε_L:	0.0556
Q²:	0.0707 GeV²
W:	1655.0 GeV
E_beam:	2.2596 GeV
ε:	0.8306

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty	syst. uncert.
0.45	270.0	0.1503	0.553	0.0328
0.55	126.0	-0.9795	1.1834	0.0949
0.55	258.0	-0.8739	1.0137	0.0857
0.55	270.0	0.6429	0.946	0.0663
0.55	282.0	-0.983	0.8943	0.0952
0.65	222.0	0.7134	0.9796	0.0721
0.65	294.0	0.1712	0.9044	0.0339
0.75	66.0	2.2565	1.1335	0.2095
0.75	210.0	-2.2216	1.0983	0.2064
0.75	222.0	1.0476	0.9389	0.1008
0.75	270.0	0.3949	0.9359	0.0471
0.75	282.0	-0.6556	0.813	0.0673
0.85	102.0	-0.2386	1.4062	0.0372
0.85	114.0	-0.0727	1.1761	0.0307
0.85	126.0	-2.2733	1.4352	0.2111
0.85	210.0	0.775	1.1501	0.0773
0.85	222.0	-1.0053	1.0703	0.0971
0.45	282.0	-0.9621	0.6977	0.0694
0.55	126.0	-1.2786	0.677	0.0884
0.55	222.0	-0.1457	0.8797	0.0315
0.55	234.0	1.0006	0.8237	0.0717
0.55	258.0	-0.7453	0.7003	0.057
0.55	270.0	-0.5036	0.709	0.0444
0.65	126.0	-1.2249	0.6745	0.0851
0.65	138.0	-0.4193	0.7873	0.0405
0.75	210.0	0.0686	0.8644	0.0303
0.75	222.0	0.0767	0.8127	0.0304
0.75	234.0	1.3139	0.6896	0.0906
0.75	282.0	-0.6356	0.6091	0.0511
0.75	294.0	0.292	0.6815	0.0355
0.85	102.0	-0.9414	0.6761	0.0682
0.85	114.0	-0.8408	0.6873	0.0624
0.85	126.0	0.364	0.8181	0.0382
0.85	198.0	-0.5898	0.9546	0.0487
0.85	210.0	-1.2502	0.6997	0.0867
0.85	222.0	-1.1804	0.7723	0.0824
0.85	246.0	0.6367	0.9202	0.0511

CLAS Physics Database