Measurement E151M213

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_UL
ε_L:	1.0331
Q²:	0.205 GeV²
W:	1205.0 GeV
E_beam:	1.3383 GeV
ε:	0.8631

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_UL	uncertainty	syst. uncert.
0.65	282.0	-0.7875	0.4386	0.0573
0.85	102.0	0.5642	0.5022	0.0461
0.55	282.0	-0.7219	0.4593	0.0528

CLAS Physics Database