Measurement E151M422

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:	0.011
Q²:	0.0121 GeV²
W:	1565.0 GeV
E_beam:	1.3383 GeV
ε:	0.6467

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_UL	uncertainty
0.55	210.0	0.4709	0.6789
0.65	222.0	0.7693	0.6899
0.75	222.0	-0.1677	0.6141
0.85	210.0	0.5168	0.6743
0.45	42.0	0.1545	1.0957
0.65	222.0	-0.2814	0.7928
0.75	210.0	-0.7359	0.8304
0.75	222.0	0.8449	1.2273
0.85	222.0	-0.0172	0.9877

CLAS Physics Database