Measurement E151M1737

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:	0.8569
Q²:	0.4155 GeV²
W:	1295.0 GeV
E_beam:	1.9889 GeV
ε:	0.8605

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty	syst. uncert.
0.65	78.0	0.0455	0.7171	0.0301
0.75	102.0	-0.2142	0.7504	0.0327
0.75	294.0	-0.3203	0.6862	0.0357
0.85	102.0	-0.5744	0.7324	0.0459

CLAS Physics Database