Measurement E151M871

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:	0.0502
Q²:	0.0415 GeV²
W:	1565.0 GeV
E_beam:	2.2596 GeV
ε:	0.8903

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_UL	uncertainty	syst. uncert.
0.35	78.0	-0.9071	0.6312	0.0667
0.45	78.0	-1.14	0.5732	0.0806
0.45	126.0	-0.026	0.7907	0.03
0.45	282.0	-0.6845	0.6118	0.054
0.55	78.0	-0.018	0.7196	0.03
0.55	114.0	-0.7503	0.721	0.0577
0.55	126.0	-1.438	0.6487	0.099
0.55	270.0	0.4047	0.7852	0.0401
0.65	126.0	1.1461	0.8673	0.081
0.65	138.0	-0.8265	0.6713	0.062
0.65	210.0	-0.1396	0.7353	0.0314
0.65	222.0	1.7138	0.7923	0.1164
0.75	114.0	-0.3646	0.7955	0.0384
0.75	126.0	1.3119	0.8552	0.0912
0.75	138.0	-0.5124	0.7091	0.0451
0.75	222.0	0.0273	0.6856	0.0301
0.75	234.0	0.6016	0.8577	0.0496
0.75	282.0	0.8486	0.8115	0.0633
0.85	102.0	-0.8018	0.7962	0.0606
0.85	114.0	-0.9653	0.7588	0.0701
0.85	210.0	-0.451	0.8147	0.0421
0.85	222.0	0.6342	0.7626	0.0513
0.85	234.0	1.1961	0.8537	0.084
0.35	270.0	0.3575	0.7156	0.0446
0.45	78.0	0.1335	0.7497	0.0324
0.55	126.0	-0.5009	0.8076	0.0551
0.55	138.0	-0.9214	0.7211	0.0902
0.55	282.0	0.3388	0.7471	0.0433
0.65	138.0	-1.0016	0.7204	0.0972
0.65	222.0	1.5969	0.828	0.1504
0.75	66.0	-0.8438	0.783	0.0835
0.75	126.0	-0.4114	0.906	0.0484
0.75	234.0	0.8688	0.8272	0.0856
0.75	282.0	-0.3345	0.7085	0.043
0.85	102.0	-0.9471	0.8435	0.0924
0.85	114.0	-0.0213	1.0496	0.0301
0.85	222.0	0.0481	0.9365	0.0303
0.85	234.0	0.9686	0.9506	0.0943

CLAS Physics Database