Measurement E151M2318

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:	0.0804
Q²:	0.0844 GeV²
W:	1625.0 GeV
E_beam:	2.999 GeV
ε:	0.9198

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty
0.35	78.0	-0.6544	1.0398
0.35	282.0	0.2551	1.0537
0.45	270.0	0.7724	0.8006
0.45	282.0	-0.671	1.0087
0.55	114.0	-0.3398	0.9427
0.55	126.0	2.6205	0.7214
0.55	138.0	-1.2207	0.8615
0.55	270.0	-0.6474	0.7771
0.55	282.0	-1.2377	0.912
0.65	66.0	-1.479	0.8748
0.65	102.0	-0.5929	0.9031
0.65	114.0	0.0147	0.9621
0.65	126.0	-0.3151	0.7927
0.65	138.0	-0.5119	1.0049
0.65	150.0	0.2691	1.0295
0.65	210.0	0.5396	0.8485
0.65	222.0	-0.8682	0.662
0.65	234.0	0.6867	1.0288
0.65	294.0	-1.0974	0.8409
0.75	90.0	-1.7816	0.7757
0.75	102.0	-0.5257	0.9532
0.75	114.0	0.2827	0.7698
0.75	126.0	0.1272	0.7437
0.75	138.0	0.2808	0.8702
0.75	198.0	-2.7025	0.7258
0.75	210.0	1.7436	0.9198
0.75	222.0	0.1449	0.8028
0.75	234.0	-0.1795	0.8314
0.75	246.0	-0.9037	1.0372
0.75	282.0	1.462	0.8253
0.75	294.0	0.0766	0.8495
0.85	90.0	-0.5526	0.6655
0.85	102.0	0.0233	0.8226
0.85	114.0	1.5056	0.8698
0.85	186.0	1.8168	0.8253
0.85	198.0	-1.5958	0.7087
0.85	210.0	-0.601	0.8012
0.85	222.0	0.6253	0.6834
0.85	234.0	-1.2261	0.648
0.85	246.0	-0.021	0.8292
0.85	282.0	-0.7758	0.9471
0.95	234.0	-0.6671	0.7843
0.95	246.0	0.9902	0.8806

CLAS Physics Database