Measurement E151M881

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:	0.2172
Q²:	0.2445 GeV²
W:	1565.0 GeV
E_beam:	2.2596 GeV
ε:	0.8293

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_UL	uncertainty
0.95	234.0	0.3124	2.3664
0.95	270.0	1.0897	2.2629
0.95	282.0	7.3979	7.3979
0.75	114.0	0.1484	0.7211
0.95	222.0	1.7693	1.4288

CLAS Physics Database