Measurement E151M587

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:	0.2773
Q²:	0.1715 GeV²
W:	1445.0 GeV
E_beam:	1.9889 GeV
ε:	0.8733

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_UL	uncertainty
0.15	294.0	0.1795	0.748
0.15	306.0	-0.1968	0.6727
0.25	66.0	-0.5587	0.5771
0.25	78.0	-0.0419	0.7099
0.25	294.0	1.7039	0.6971
0.35	66.0	0.6103	0.684
0.35	78.0	0.3975	0.6567
0.35	282.0	-0.4506	0.5988
0.35	294.0	-0.6881	0.5466
0.45	66.0	-0.5776	0.6677
0.45	78.0	1.7236	0.5857
0.45	90.0	0.6363	0.8882
0.45	270.0	-0.9576	0.5426
0.45	282.0	0.5838	0.6445
0.45	294.0	-0.45	0.5037
0.55	78.0	1.3538	0.7685
0.55	102.0	-0.3871	0.7037
0.55	114.0	0.9737	0.7559
0.55	282.0	-0.2292	0.6941
0.65	102.0	1.2099	0.5999
0.65	114.0	0.4566	0.5387
0.65	126.0	-0.5336	0.4889
0.65	246.0	-0.0788	0.594
0.65	258.0	-0.3433	0.7036
0.75	90.0	-0.3171	0.5695
0.75	102.0	0.1882	0.5297
0.75	114.0	0.0991	0.4989
0.75	126.0	0.2068	0.5105
0.75	138.0	0.8198	0.7735
0.75	222.0	1.8687	0.6464
0.75	234.0	0.4213	0.5338
0.75	246.0	-0.3905	0.5239
0.75	258.0	0.1973	0.4968
0.75	270.0	0.8589	0.7164
0.85	78.0	0.2601	0.6516
0.85	90.0	0.503	0.7316
0.85	102.0	-0.0697	0.678
0.85	114.0	-0.7551	0.4814
0.85	126.0	-0.3535	0.5456
0.85	138.0	0.783	0.6569
0.85	150.0	-1.3259	0.5303
0.85	210.0	1.0731	0.7595
0.85	222.0	-0.043	0.578
0.85	234.0	0.1655	0.5644
0.85	246.0	0.4454	0.5408
0.85	258.0	-0.7623	0.4274
0.85	270.0	0.3314	0.5024
0.85	282.0	0.3484	0.7733
0.95	90.0	-0.2401	0.4999
0.95	210.0	1.0724	0.667
0.95	222.0	0.1406	0.5482
0.95	234.0	0.1041	0.5483
0.95	246.0	0.1675	0.5403
0.95	258.0	-0.1178	0.4083
0.95	270.0	0.1275	0.411
0.95	282.0	0.4037	0.5053

CLAS Physics Database