Measurement E151M1634

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:	0.0496
Q²:	0.0496 GeV²
W:	1535.0 GeV
E_beam:	1.3383 GeV
ε:	0.6604

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty	syst. uncert.
0.55	138.0	-3.1721	3.1721	0.1925
0.55	162.0	0.3314	1.3378	0.0357
0.55	222.0	1.5518	0.9079	0.0951
0.55	234.0	-0.2943	0.6033	0.0355
0.55	246.0	-0.273	0.6701	0.0341
0.65	138.0	0.2282	0.7031	0.039
0.65	150.0	0.4769	0.9173	0.0414
0.65	210.0	-0.2492	0.6318	0.055
0.65	222.0	-0.3845	0.655	0.0505
0.65	234.0	-0.3067	0.6114	0.0508
0.65	246.0	-1.7658	0.4416	0.1107
0.75	138.0	0.0999	0.7762	0.0306
0.75	150.0	-0.8268	1.0628	0.0567
0.75	210.0	0.367	1.1372	0.0368
0.75	222.0	-1.8073	1.1443	0.1093
0.75	234.0	-0.9298	0.5756	0.066
0.75	246.0	-0.3918	0.5906	0.0436
0.85	126.0	-1.2579	1.0279	0.0791
0.85	210.0	0.4471	1.1091	0.0397
0.85	222.0	0.4965	0.5266	0.0794
0.85	234.0	-1.1499	0.5502	0.0755
0.85	246.0	0.6742	0.5258	0.0503
0.85	258.0	0.309	0.6423	0.0411

CLAS Physics Database