Measurement E151M715

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:	0.039
Q²:	0.0707 GeV²
W:	1715.0 GeV
E_beam:	1.9889 GeV
ε:	0.7116

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_UL	uncertainty	syst. uncert.
0.75	222.0	2.5471	2.5471	0.1587
0.75	282.0	0.1872	0.664	0.0321
0.85	126.0	1.4852	0.804	0.0957
0.85	210.0	-0.2873	0.6982	0.0348
0.85	222.0	-0.1864	0.7045	0.0321

CLAS Physics Database