Measurement E151M1011

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:	0.7236
Q²:	0.7075 GeV²
W:	1385.0 GeV
E_beam:	2.999 GeV
ε:	0.8846

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_UL	uncertainty	syst. uncert.
0.75	78.0	0.5782	0.7336	0.0518
0.75	90.0	1.0769	0.8904	0.0842
0.75	258.0	0.4575	0.7746	0.0449
0.75	306.0	0.2147	0.7394	0.0339
0.85	270.0	-0.5474	0.6678	0.05
0.85	282.0	0.1713	0.7453	0.0325

CLAS Physics Database