Measurement E151M499

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:	0.9573
Q²:	0.348 GeV²
W:	1265.0 GeV
E_beam:	1.9889 GeV
ε:	0.8907

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_UL	uncertainty	syst. uncert.
0.45	294.0	-0.5052	0.52	0.0431
0.65	282.0	0.2359	0.6216	0.0333
0.65	294.0	-0.3556	0.4708	0.0371
0.75	66.0	0.4605	0.6405	0.0412
0.75	78.0	0.2785	0.6126	0.0345
0.75	90.0	0.6749	0.612	0.051
0.75	102.0	0.1476	0.5428	0.0313
0.75	294.0	-0.3672	0.4463	0.0375
0.85	102.0	0.831	0.6433	0.059
0.85	234.0	0.9741	0.6542	0.0667
0.85	258.0	-0.216	0.4682	0.0328
0.85	282.0	-0.7569	0.4246	0.0552
0.85	294.0	0.102	0.4715	0.0306
0.95	78.0	0.3176	0.5737	0.0357

CLAS Physics Database