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	syst. uncert.
0.25	42.0	0.6193	0.8849	0.0766
0.35	42.0	0.3946	0.7938	0.054
0.35	54.0	2.4539	0.9469	0.2808
0.45	42.0	-0.5502	0.7211	0.0694
0.45	258.0	0.4828	0.8275	0.0626
0.55	246.0	1.3094	0.6706	0.152
0.55	258.0	0.2653	0.6155	0.0426
0.55	270.0	0.5008	0.7032	0.0644
0.65	138.0	-0.8537	0.7061	0.1017
0.65	150.0	1.1882	0.9256	0.1385
0.65	186.0	1.1607	0.912	0.1354
0.65	222.0	1.0403	0.811	0.1221
0.65	234.0	0.9937	0.6796	0.117
0.65	246.0	1.1311	0.6517	0.1321
0.65	258.0	-0.6196	0.4974	0.0766
0.65	270.0	0.6504	0.5307	0.0798
0.75	138.0	-0.6556	0.63	0.0804
0.75	150.0	0.481	0.8168	0.0624
0.75	162.0	-0.058	0.6439	0.0307
0.75	174.0	0.7674	0.8234	0.0923
0.75	186.0	-0.1319	0.776	0.0335
0.75	222.0	0.1736	0.6529	0.0359
0.75	234.0	0.0865	0.6258	0.0316
0.75	246.0	0.4909	0.4893	0.0634
0.75	258.0	-0.1624	0.4428	0.0352
0.75	270.0	0.4756	0.6209	0.0619
0.85	138.0	-0.2143	0.677	0.0387
0.85	150.0	0.0502	0.7962	0.0305
0.85	162.0	0.4036	0.7355	0.0549
0.85	174.0	0.2007	0.7419	0.0377
0.85	186.0	-0.6845	0.759	0.0835
0.85	234.0	0.323	0.6058	0.0474
0.85	246.0	0.1626	0.5068	0.0352
0.85	258.0	0.5235	0.472	0.0667
0.85	270.0	0.0742	0.507	0.0312
0.85	282.0	-0.0876	0.6479	0.0316
0.95	126.0	0.0366	0.6699	0.0303
0.95	138.0	1.4567	0.746	0.1684
0.95	246.0	0.5647	0.6493	0.0709
0.95	258.0	-0.7117	0.5194	0.0863
0.95	270.0	-1.0181	0.3907	0.1196

CLAS Physics Database