Measurement E151M1672

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:	0.051
Q²:	0.0844 GeV²
W:	1595.0 GeV
E_beam:	1.3383 GeV
ε:	0.5236

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty	syst. uncert.
0.85	222.0	-0.3174	0.969	0.0355
0.85	234.0	-0.3878	0.8155	0.038
0.85	246.0	-0.4755	0.8375	0.0414
0.75	234.0	1.1234	1.0606	0.0719
0.85	246.0	1.3479	0.9531	0.0839

CLAS Physics Database