Measurement E151M1896

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:	0.0592
Q²:	0.0707 GeV²
W:	1625.0 GeV
E_beam:	1.9889 GeV
ε:	0.7962

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty	syst. uncert.
0.35	282.0	-0.4874	0.8991	0.0421
0.45	78.0	1.1488	0.8017	0.0758
0.45	270.0	-0.7135	0.7009	0.0526
0.55	90.0	-0.5947	0.9955	0.0469
0.55	270.0	-0.0296	0.8857	0.0301
0.65	114.0	-0.9473	0.7362	0.0648
0.65	126.0	-0.8418	0.787	0.0592
0.65	150.0	0.021	0.9223	0.03
0.65	210.0	-0.9113	0.8681	0.0628
0.65	222.0	0.0429	0.7973	0.0301
0.65	270.0	1.1692	0.8509	0.0769
0.65	282.0	-2.3715	2.3715	0.1468
0.65	294.0	-0.7762	0.8543	0.0558
0.75	66.0	1.8994	0.7264	0.1189
0.75	114.0	-1.0138	0.9203	0.0684
0.75	126.0	-1.207	0.8209	0.0791
0.75	138.0	0.6379	0.8767	0.0489
0.75	210.0	-1.1549	0.7892	0.0761
0.75	222.0	-1.2818	0.7163	0.0833
0.75	234.0	-0.0796	0.8404	0.0304
0.75	270.0	1.2026	0.9163	0.0788
0.75	282.0	-0.2046	0.684	0.0325
0.85	102.0	0.3368	0.8105	0.0363
0.85	114.0	0.2653	0.7227	0.034
0.85	198.0	-0.3512	0.7119	0.0368
0.85	210.0	-0.3004	0.7747	0.0351
0.85	222.0	-1.6449	0.6267	0.1041
0.85	234.0	-1.658	0.5912	0.1049
0.85	246.0	-0.1777	0.8295	0.0319
0.95	222.0	0.3837	0.8201	0.038

CLAS Physics Database