Measurement E151M659

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:	0.0792
Q²:	0.0844 GeV²
W:	1595.0 GeV
E_beam:	1.9889 GeV
ε:	0.8139

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_UL	uncertainty
0.45	78.0	1.6953	0.892
0.45	282.0	0.4059	0.8622
0.55	222.0	2.3653	0.7376
0.55	270.0	2.029	0.7006
0.55	282.0	-0.1509	0.7788
0.65	126.0	-0.8169	0.6673
0.65	150.0	-1.3289	0.6044
0.65	198.0	-0.0874	0.8467
0.65	210.0	0.134	0.8403
0.65	222.0	0.5929	0.6791
0.65	294.0	1.2259	0.73
0.75	126.0	-0.4419	0.6802
0.75	138.0	-0.6575	0.6865
0.75	210.0	0.6687	0.8588
0.75	222.0	0.9074	0.9015
0.75	234.0	0.3124	0.5989
0.75	246.0	0.3583	0.8662
0.75	270.0	0.5274	0.7749
0.75	282.0	-0.1264	0.5866
0.75	294.0	0.8928	0.6591
0.85	102.0	-0.8051	0.6358
0.85	114.0	0.1768	0.7757
0.85	210.0	-0.2129	0.7672
0.85	222.0	0.038	0.5513
0.85	234.0	0.592	0.6613
0.85	246.0	0.3663	0.7172
0.95	234.0	0.4216	0.7734

CLAS Physics Database