Measurement E151M2392

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:	0.16
Q²:	0.4155 GeV²
W:	1775.0 GeV
E_beam:	2.999 GeV
ε:	0.7887

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty	syst. uncert.
0.85	198.0	-0.1446	1.0965	0.0318
0.85	234.0	0.3001	0.9744	0.0371
0.95	198.0	0.4602	0.9718	0.0449
0.95	210.0	-0.4724	1.0082	0.0455
0.95	222.0	0.3895	0.9872	0.0412
0.95	234.0	1.2291	0.9465	0.094

CLAS Physics Database