Measurement E151M39

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:	0.7393
Q²:	0.205 GeV²
W:	1235.0 GeV
E_beam:	1.0539 GeV
ε:	0.7395

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_UL	uncertainty
0.45	282.0	-0.2365	0.5727
0.55	270.0	-0.7485	0.3919
0.55	282.0	-0.2831	0.5389
0.65	294.0	-0.3986	0.5096
0.75	270.0	-0.2984	0.4753
0.85	126.0	-0.2191	0.56
0.85	150.0	-0.0001	0.564
0.95	186.0	-0.0416	0.4606

CLAS Physics Database