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
0.35	282.0	-0.4874	0.8991
0.45	78.0	1.1488	0.8017
0.45	270.0	-0.7135	0.7009
0.55	90.0	-0.5947	0.9955
0.55	270.0	-0.0296	0.8857
0.65	114.0	-0.9473	0.7362
0.65	126.0	-0.8418	0.787
0.65	150.0	0.021	0.9223
0.65	210.0	-0.9113	0.8681
0.65	222.0	0.0429	0.7973
0.65	270.0	1.1692	0.8509
0.65	282.0	-2.3715	2.3715
0.65	294.0	-0.7762	0.8543
0.75	66.0	1.8994	0.7264
0.75	114.0	-1.0138	0.9203
0.75	126.0	-1.207	0.8209
0.75	138.0	0.6379	0.8767
0.75	210.0	-1.1549	0.7892
0.75	222.0	-1.2818	0.7163
0.75	234.0	-0.0796	0.8404
0.75	270.0	1.2026	0.9163
0.75	282.0	-0.2046	0.684
0.85	102.0	0.3368	0.8105
0.85	114.0	0.2653	0.7227
0.85	198.0	-0.3512	0.7119
0.85	210.0	-0.3004	0.7747
0.85	222.0	-1.6449	0.6267
0.85	234.0	-1.658	0.5912
0.85	246.0	-0.1777	0.8295
0.95	222.0	0.3837	0.8201

CLAS Physics Database