Measurement E151M1143

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:	0.1764
Q²:	0.348 GeV²
W:	1715.0 GeV
E_beam:	2.999 GeV
ε:	0.8352

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_UL	uncertainty
0.65	102.0	0.0307	0.9178
0.65	114.0	0.6254	0.9796
0.65	138.0	-2.1202	0.5108
0.65	222.0	1.6583	1.031
0.75	78.0	-1.4494	0.536
0.75	114.0	-0.7344	0.7627
0.75	186.0	-0.3316	0.8296
0.75	198.0	0.3307	0.8607
0.75	210.0	1.0049	0.9287
0.75	234.0	1.9187	0.9573
0.75	246.0	0.8878	0.9844
0.85	66.0	-0.9822	0.6039
0.85	78.0	0.6609	0.9217
0.85	90.0	-1.4685	0.5972
0.85	102.0	-0.8718	0.7204
0.85	186.0	-0.0015	0.9156
0.85	198.0	-0.9025	0.631
0.85	210.0	0.1699	0.7132
0.85	222.0	0.1054	0.6305
0.85	234.0	0.0187	0.6194
0.85	246.0	0.4316	0.8528
0.85	258.0	1.0452	0.9772
0.95	186.0	0.5185	0.7852
0.95	198.0	-0.9221	0.5211
0.95	210.0	0.191	0.7819
0.95	222.0	-0.2691	0.6205
0.95	234.0	1.1384	0.751
0.95	246.0	0.3354	0.6709
0.95	258.0	-0.7792	0.5258
0.95	270.0	-0.1176	0.671
0.95	282.0	-0.1191	0.6508

CLAS Physics Database