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
0.35	78.0	-0.9071	0.6312
0.45	78.0	-1.14	0.5732
0.45	126.0	-0.026	0.7907
0.45	282.0	-0.6845	0.6118
0.55	78.0	-0.018	0.7196
0.55	114.0	-0.7503	0.721
0.55	126.0	-1.438	0.6487
0.55	270.0	0.4047	0.7852
0.65	126.0	1.1461	0.8673
0.65	138.0	-0.8265	0.6713
0.65	210.0	-0.1396	0.7353
0.65	222.0	1.7138	0.7923
0.75	114.0	-0.3646	0.7955
0.75	126.0	1.3119	0.8552
0.75	138.0	-0.5124	0.7091
0.75	222.0	0.0273	0.6856
0.75	234.0	0.6016	0.8577
0.75	282.0	0.8486	0.8115
0.85	102.0	-0.8018	0.7962
0.85	114.0	-0.9653	0.7588
0.85	210.0	-0.451	0.8147
0.85	222.0	0.6342	0.7626
0.85	234.0	1.1961	0.8537
0.35	270.0	0.3575	0.7156
0.45	78.0	0.1335	0.7497
0.55	126.0	-0.5009	0.8076
0.55	138.0	-0.9214	0.7211
0.55	282.0	0.3388	0.7471
0.65	138.0	-1.0016	0.7204
0.65	222.0	1.5969	0.828
0.75	66.0	-0.8438	0.783
0.75	126.0	-0.4114	0.906
0.75	234.0	0.8688	0.8272
0.75	282.0	-0.3345	0.7085
0.85	102.0	-0.9471	0.8435
0.85	114.0	-0.0213	1.0496
0.85	222.0	0.0481	0.9365
0.85	234.0	0.9686	0.9506

CLAS Physics Database