Measurement E151M2388

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:	0.0986
Q²:	0.205 GeV²
W:	1775.0 GeV
E_beam:	2.999 GeV
ε:	0.8368

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty	syst. uncert.
0.65	210.0	-0.3811	1.0916	0.0408
0.65	282.0	0.2632	0.8761	0.0356
0.65	294.0	1.0312	0.8782	0.0806
0.75	90.0	0.2448	1.0917	0.0349
0.75	198.0	1.1554	1.1128	0.089
0.75	210.0	-1.2141	1.0516	0.093
0.75	222.0	1.1809	0.9779	0.0907
0.75	234.0	-0.8062	1.0917	0.0657
0.85	78.0	-0.2927	0.9796	0.0367
0.85	90.0	0.577	0.8871	0.0515
0.85	102.0	-0.3595	1.0316	0.0397
0.85	114.0	-0.1442	0.9465	0.0318
0.85	186.0	0.5529	1.0221	0.0501
0.85	198.0	-0.9935	0.8263	0.078
0.85	210.0	-0.1892	0.9242	0.033
0.85	222.0	-0.385	0.8742	0.041
0.85	234.0	-1.0167	0.905	0.0796
0.85	246.0	-1.4754	0.8759	0.1111
0.95	186.0	-1.1281	0.9419	0.0871
0.95	198.0	0.7052	0.9801	0.0593
0.95	210.0	-1.3078	0.9235	0.0995
0.95	222.0	-0.1406	0.9722	0.0317
0.95	234.0	-0.1773	0.9727	0.0326
0.95	246.0	1.2156	0.7638	0.0931

CLAS Physics Database