Measurement E151M1185

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:	0.0374
Q²:	0.0844 GeV²
W:	1835.0 GeV
E_beam:	2.999 GeV
ε:	0.8322

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_UL	uncertainty	syst. uncert.
0.65	270.0	-0.7551	0.7612	0.0628
0.75	90.0	0.0947	0.9118	0.0308
0.75	102.0	2.0028	1.0716	0.1494
0.75	114.0	-1.5368	0.5975	0.1163
0.75	186.0	0.6168	0.9111	0.0542
0.75	198.0	-0.3831	0.7545	0.041
0.75	210.0	-2.0744	0.5185	0.1546
0.75	258.0	0.5881	0.8787	0.0524
0.75	270.0	-0.1867	0.8495	0.033
0.75	282.0	-0.2631	0.8513	0.0356
0.85	102.0	-0.5675	0.6775	0.0512
0.85	114.0	-0.9557	0.6593	0.076
0.85	126.0	-0.0131	0.8308	0.03
0.85	174.0	-0.4521	0.802	0.0446
0.85	186.0	0.8345	0.7945	0.068
0.85	198.0	-0.2654	0.6551	0.0357
0.85	210.0	-0.2132	0.6313	0.0338
0.85	222.0	-0.3878	0.7705	0.0413
0.85	270.0	-0.4226	0.8024	0.0431

CLAS Physics Database