Measurement E151M704

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:	0.0705
Q²:	0.1205 GeV²
W:	1685.0 GeV
E_beam:	1.9889 GeV
ε:	0.7186

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_UL	uncertainty
0.45	270.0	-0.2827	0.5698
0.55	270.0	0.9278	0.645
0.65	138.0	-0.3068	0.6354
0.75	210.0	0.7392	0.6417
0.75	222.0	0.3243	0.6279
0.75	282.0	2.1052	2.1052
0.85	102.0	0.6601	0.6009
0.85	198.0	1.6756	0.6245
0.85	234.0	0.6751	0.6171
0.85	246.0	-0.2399	0.5917
0.95	234.0	-0.1961	0.5383

CLAS Physics Database