Measurement E151M2930

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_LU
ε_L:	0.2087
Q²:	0.0348 GeV²
W:	1265.0 GeV
E_beam:	1.9889 GeV
ε:	0.9697

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LU	uncertainty
0.55	90.0	0.2661	0.249
0.65	258.0	-0.0455	0.2816
0.75	246.0	-0.2765	0.2221
0.75	258.0	0.2041	0.2467
0.75	270.0	0.061	0.2801
0.85	126.0	0.1903	0.2669
0.85	138.0	0.22	0.262
0.85	162.0	0.2102	0.2792
0.85	246.0	-0.3412	0.2497

CLAS Physics Database