Measurement E151M40

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:	0.0357
Q²:	0.0059 GeV²
W:	1265.0 GeV
E_beam:	1.0539 GeV
ε:	0.9002

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_UL	uncertainty
0.55	258.0	-0.2214	0.5324
0.55	270.0	0.6715	0.5921
0.65	246.0	-0.0353	0.5864
0.75	246.0	-0.2914	0.5507

CLAS Physics Database