Measurement E151M1982

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:	0.7404
Q²:	0.2445 GeV²
W:	1295.0 GeV
E_beam:	2.2596 GeV
ε:	0.9321

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty	syst. uncert.
0.65	270.0	2.1283	1.5413	0.1979
0.75	90.0	-1.9529	1.8898	0.182
0.75	102.0	-1.5576	1.6519	0.1463
0.75	270.0	0.6176	1.6449	0.0642
0.75	294.0	0.626	1.4925	0.0649
0.85	90.0	-1.5481	2.1205	0.1454
0.85	102.0	3.2595	2.1035	0.3011
0.85	114.0	0.9954	1.9616	0.0963
0.85	270.0	-2.3963	1.8688	0.2223
0.85	282.0	0.2443	1.8661	0.0375
0.95	90.0	0.318	5.1446	0.0419
0.95	282.0	1.8275	5.3734	0.1706
0.95	306.0	-0.1169	5.061	0.0319
0.55	270.0	-0.5237	0.6008	0.0454
0.65	282.0	0.6865	0.5601	0.0538
0.75	90.0	0.2925	0.526	0.0355
0.75	102.0	-0.5375	0.5289	0.0461
0.75	246.0	0.027	0.6896	0.0301
0.75	270.0	-0.2369	0.5814	0.0337
0.75	282.0	0.1755	0.5341	0.0321
0.75	294.0	0.2414	0.5727	0.0339
0.85	78.0	0.3534	0.5849	0.0378
0.85	90.0	-0.624	0.6031	0.0505
0.85	102.0	-0.7454	0.5809	0.057
0.85	114.0	0.533	0.6485	0.0458
0.85	246.0	-0.0758	0.7073	0.0304
0.85	258.0	0.1991	0.5772	0.0327
0.85	270.0	0.9863	0.4694	0.0708
0.85	282.0	0.1696	0.5228	0.032
0.85	294.0	-0.0377	0.4973	0.0301
0.85	306.0	0.559	0.6164	0.0471
0.95	78.0	-0.0374	1.0297	0.0301
0.95	114.0	2.3187	0.9538	0.1538
0.95	126.0	-0.2607	1.0254	0.0345
0.95	306.0	0.5369	0.9883	0.046

CLAS Physics Database