Measurement E151M775

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:	0.7386
Q²:	0.348 GeV²
W:	1325.0 GeV
E_beam:	2.2596 GeV
ε:	0.9017

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_UL	uncertainty
0.85	246.0	-0.6143	1.3988
0.75	258.0	0.7343	0.5666
0.85	78.0	0.7081	0.6035
0.85	102.0	0.0627	0.6362
0.85	270.0	-0.4663	0.5691
0.85	294.0	-0.6871	0.4379

CLAS Physics Database