Measurement E151M230

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:	0.8465
Q²:	0.205 GeV²
W:	1235.0 GeV
E_beam:	1.3383 GeV
ε:	0.8468

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_UL	uncertainty	syst. uncert.
0.65	282.0	0.6268	0.4497	0.0491
0.75	282.0	0.2121	0.5136	0.0327
0.85	102.0	0.5095	0.5133	0.0435
0.95	102.0	0.9015	0.4219	0.0634
0.65	294.0	-0.3693	0.5384	0.0373
0.75	282.0	-0.9257	0.413	0.0633
0.85	102.0	2.9653	2.9653	0.1811

CLAS Physics Database