Measurement E151M841

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:	0.3512
Q²:	0.2915 GeV²
W:	1475.0 GeV
E_beam:	2.2596 GeV
ε:	0.8612

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_UL	uncertainty	syst. uncert.
0.75	90.0	0.8961	0.629	0.066
0.75	102.0	-0.9425	0.5569	0.0687
0.75	246.0	-0.0002	0.6902	0.03
0.85	234.0	-0.0137	0.7449	0.03
0.85	246.0	-1.1438	0.5918	0.0808
0.85	270.0	-0.5566	0.6299	0.0473
0.95	282.0	0.3769	1.0359	0.0389
0.65	114.0	-1.0804	1.0785	0.1041
0.75	246.0	1.4483	1.177	0.137
0.85	66.0	1.7143	1.4887	0.161
0.85	114.0	2.7484	1.6034	0.2554
0.85	258.0	0.06	1.1513	0.0305
0.85	282.0	-1.7239	0.9704	0.1619

CLAS Physics Database