Measurement E151M2369

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:	0.0438
Q²:	0.0707 GeV²
W:	1745.0 GeV
E_beam:	2.999 GeV
ε:	0.8789

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty	syst. uncert.
0.65	210.0	-1.2652	1.0219	0.0965
0.75	198.0	-0.7763	1.03	0.0638
0.75	210.0	0.4505	0.9356	0.0444
0.75	222.0	-0.3689	1.042	0.0402
0.75	282.0	-1.8748	0.9722	0.1392
0.85	90.0	1.5884	0.8585	0.119
0.85	102.0	0.4305	1.0242	0.0433
0.85	114.0	-1.4652	0.9269	0.1104
0.85	126.0	-1.8673	0.988	0.1387
0.85	186.0	0.0702	1.0575	0.0304
0.85	210.0	-0.7758	0.8671	0.0638
0.85	222.0	-1.164	1.0152	0.0896
0.85	234.0	-1.1523	0.9674	0.0888

CLAS Physics Database