Measurement E151M139

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:	0.1402
Q²:	0.0707 GeV²
W:	1385.0 GeV
E_beam:	1.0539 GeV
ε:	0.6915

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_UL	uncertainty
0.25	42.0	0.6193	0.8849
0.35	42.0	0.3946	0.7938
0.35	54.0	2.4539	0.9469
0.45	42.0	-0.5502	0.7211
0.45	258.0	0.4828	0.8275
0.55	246.0	1.3094	0.6706
0.55	258.0	0.2653	0.6155
0.55	270.0	0.5008	0.7032
0.65	138.0	-0.8537	0.7061
0.65	150.0	1.1882	0.9256
0.65	186.0	1.1607	0.912
0.65	222.0	1.0403	0.811
0.65	234.0	0.9937	0.6796
0.65	246.0	1.1311	0.6517
0.65	258.0	-0.6196	0.4974
0.65	270.0	0.6504	0.5307
0.75	138.0	-0.6556	0.63
0.75	150.0	0.481	0.8168
0.75	162.0	-0.058	0.6439
0.75	174.0	0.7674	0.8234
0.75	186.0	-0.1319	0.776
0.75	222.0	0.1736	0.6529
0.75	234.0	0.0865	0.6258
0.75	246.0	0.4909	0.4893
0.75	258.0	-0.1624	0.4428
0.75	270.0	0.4756	0.6209
0.85	138.0	-0.2143	0.677
0.85	150.0	0.0502	0.7962
0.85	162.0	0.4036	0.7355
0.85	174.0	0.2007	0.7419
0.85	186.0	-0.6845	0.759
0.85	234.0	0.323	0.6058
0.85	246.0	0.1626	0.5068
0.85	258.0	0.5235	0.472
0.85	270.0	0.0742	0.507
0.85	282.0	-0.0876	0.6479
0.95	126.0	0.0366	0.6699
0.95	138.0	1.4567	0.746
0.95	246.0	0.5647	0.6493
0.95	258.0	-0.7117	0.5194
0.95	270.0	-1.0181	0.3907

CLAS Physics Database