Measurement E151M442

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:	0.0149
Q²:	0.0205 GeV²
W:	1595.0 GeV
E_beam:	1.3383 GeV
ε:	0.5862

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_UL	uncertainty	syst. uncert.
0.45	42.0	-0.5573	0.6022	0.0455
0.65	222.0	1.2181	0.671	0.0812
0.85	234.0	0.1137	0.6679	0.0308
0.45	222.0	-0.6798	0.8618	0.0508
0.55	222.0	0.7624	1.2674	0.0548
0.55	234.0	1.3149	1.6323	0.0847
0.75	234.0	-0.2162	0.8775	0.0327
0.85	138.0	-0.6222	0.9021	0.048
0.85	222.0	2.0843	1.2543	0.129
0.85	234.0	-0.1926	0.984	0.0322

CLAS Physics Database