Measurement E151M784

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:	0.4961
Q²:	0.205 GeV²
W:	1355.0 GeV
E_beam:	2.2596 GeV
ε:	0.9257

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_UL	uncertainty	syst. uncert.
0.65	90.0	-0.548	0.5462	0.0468
0.65	102.0	0.2827	0.5389	0.0353
0.65	114.0	-0.3583	0.6227	0.0381
0.65	258.0	-0.5552	0.4209	0.0496
0.65	270.0	0.7613	0.5377	0.0758
0.75	90.0	0.4083	0.4731	0.0423
0.75	102.0	1.2649	0.4845	0.0912
0.75	114.0	-0.1651	0.5724	0.0412
0.75	126.0	0.5652	1.4686	0.0602
0.75	246.0	0.1574	0.5103	0.0678
0.75	258.0	-0.1492	0.5484	0.0316
0.75	270.0	-0.8508	0.4436	0.0651
0.75	282.0	-0.1869	0.479	0.0593
0.85	90.0	-0.3174	0.5426	0.0365
0.85	102.0	0.4181	0.541	0.1152
0.85	114.0	-0.4729	0.4778	0.0497
0.85	126.0	-0.6519	0.589	0.0757
0.85	222.0	-1.7301	1.1854	0.1625
0.85	234.0	1.0549	0.6374	0.0786
0.85	246.0	-0.3753	0.4728	0.0662
0.85	258.0	0.1108	0.5176	0.0338
0.85	270.0	-0.6681	0.4042	0.0531
0.85	282.0	-0.019	0.4401	0.058
0.95	114.0	-2.8947	3.8741	0.2688
0.95	126.0	-2.888	3.8214	0.2682
0.95	270.0	-1.2054	3.0432	0.1152
0.95	282.0	3.7819	3.5768	0.3503
0.95	294.0	-3.1019	2.4708	0.2878
0.95	306.0	-1.8336	3.2072	0.1719
0.85	294.0	0.2185	0.544	0.0333
0.95	102.0	0.5663	0.9996	0.0478
0.95	138.0	-0.3401	1.0419	0.0374
0.95	234.0	-0.1213	1.0987	0.031
0.95	258.0	1.4283	0.8646	0.0984
0.95	270.0	-0.0581	0.8771	0.0302
0.95	282.0	-0.3996	0.8629	0.0398
0.95	294.0	0.8244	0.8041	0.0619
0.95	306.0	-0.3302	0.9253	0.037

CLAS Physics Database