Measurement E151M555

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:	0.3715
Q²:	0.1715 GeV²
W:	1385.0 GeV
E_beam:	1.9889 GeV
ε:	0.8997

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_UL	uncertainty
0.25	66.0	0.7668	0.6853
0.25	78.0	-0.8584	0.6065
0.25	294.0	-0.7562	0.5098
0.25	306.0	0.931	0.7481
0.35	66.0	0.3148	0.6207
0.35	78.0	0.0958	0.5861
0.35	282.0	-0.4483	0.5898
0.35	294.0	0.2156	0.6059
0.35	306.0	-0.2576	0.6703
0.45	66.0	-0.0148	0.6932
0.45	78.0	-0.1531	0.6249
0.45	294.0	-0.8756	0.5616
0.55	282.0	0.0633	0.6631
0.65	90.0	0.7152	0.7405
0.65	102.0	0.5916	0.6058
0.65	114.0	0.4229	0.5635
0.65	126.0	1.496	0.7707
0.65	246.0	-0.013	0.5629
0.65	258.0	0.6643	0.5301
0.65	270.0	0.0142	0.5522
0.75	90.0	-0.4388	0.4466
0.75	102.0	0.6106	0.5673
0.75	114.0	-0.0321	0.4624
0.75	126.0	-0.499	0.5762
0.75	138.0	0.3548	0.7128
0.75	222.0	-0.1912	0.6371
0.75	234.0	0.7663	0.5914
0.75	246.0	-0.4058	0.4242
0.75	258.0	-0.4663	0.3858
0.75	270.0	-0.9305	0.3476
0.75	282.0	0.5976	0.5786
0.85	78.0	-0.828	0.5874
0.85	90.0	-0.2866	0.5547
0.85	102.0	0.2822	0.4383
0.85	114.0	1.0355	0.5657
0.85	126.0	0.5618	0.5088
0.85	138.0	0.2108	0.6261
0.85	150.0	-0.1707	0.6282
0.85	222.0	-0.3915	0.4756
0.85	234.0	0.2445	0.4311
0.85	246.0	-1.0081	0.3988
0.85	258.0	-0.4953	0.4465
0.85	270.0	0.2626	0.4921
0.85	282.0	0.5003	0.4458
0.85	294.0	0.1084	0.503
0.95	78.0	-0.8507	0.4835
0.95	114.0	-0.7763	0.4277
0.95	126.0	-0.2287	0.4826
0.95	138.0	0.5771	0.6255
0.95	222.0	1.147	0.536
0.95	234.0	0.7309	0.6114
0.95	246.0	-0.1802	0.4552
0.95	258.0	0.4401	0.4344
0.95	270.0	0.211	0.4001
0.95	282.0	-0.0744	0.3854
0.95	294.0	0.6462	0.4849

CLAS Physics Database