Measurement E151M3153

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_LU
ε_L:	0.0145
Q²:	0.0245 GeV²
W:	1715.0 GeV
E_beam:	1.9889 GeV
ε:	0.7343

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LU	uncertainty	syst. uncert.
0.55	210.0	-0.1212	0.2781	0.0301
0.75	66.0	-0.3635	0.2704	0.0309
0.85	126.0	-0.0382	0.2805	0.03

CLAS Physics Database