Measurement E151M786

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:	0.598
Q²:	0.2915 GeV²
W:	1355.0 GeV
E_beam:	2.2596 GeV
ε:	0.906

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_UL	uncertainty
0.75	90.0	1.7472	1.3628
0.75	246.0	1.0069	1.2292
0.85	90.0	-0.7109	1.4185
0.85	102.0	3.5364	1.5358
0.95	306.0	3.981	3.4559
0.65	270.0	0.2937	0.6272
0.75	78.0	-0.3618	0.5673
0.75	102.0	-0.42	0.5891
0.85	90.0	-0.7868	0.5505
0.85	102.0	0.1478	0.6212
0.85	114.0	-0.936	0.5243
0.85	246.0	0.4258	0.687
0.85	270.0	-0.2413	0.6152
0.85	282.0	-0.8715	0.5281
0.85	294.0	-0.323	0.5295
0.95	270.0	-1.2469	0.8252
0.95	294.0	1.099	0.938

CLAS Physics Database