Measurement E151M687

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:	0.044
Q²:	0.0593 GeV²
W:	1655.0 GeV
E_beam:	1.9889 GeV
ε:	0.7757

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_UL	uncertainty
0.35	18.0	0.4415	0.7008
0.35	270.0	0.0949	0.5393
0.35	282.0	1.1923	0.7049
0.45	78.0	-0.5123	0.5445
0.45	270.0	-0.4421	0.5796
0.45	282.0	-0.2232	0.6272
0.45	294.0	1.0556	0.7438
0.55	78.0	-0.2086	0.6288
0.55	126.0	-0.3178	0.5848
0.55	138.0	-0.8988	0.6086
0.55	210.0	-0.2611	0.6701
0.55	222.0	0.3527	0.7175
0.55	258.0	0.1378	0.7161
0.55	270.0	-0.5805	0.4571
0.55	282.0	0.2122	0.6639
0.65	114.0	-0.0698	0.7336
0.65	126.0	0.2732	0.6578
0.65	198.0	0.6578	0.695
0.65	210.0	0.0505	0.6089
0.65	222.0	1.1089	0.6662
0.65	258.0	0.5283	0.7462
0.65	282.0	0.0142	0.627
0.65	294.0	-1.0653	0.4997
0.75	66.0	-1.4755	0.4036
0.75	126.0	0.6002	0.7803
0.75	198.0	-0.4349	0.6635
0.75	210.0	0.691	0.6777
0.75	222.0	-0.2337	0.53
0.75	234.0	-0.7496	0.5685
0.75	246.0	0.5501	0.7628
0.75	270.0	-0.296	0.4697
0.75	282.0	0.4325	0.5376
0.75	294.0	-0.0752	0.5933
0.85	114.0	-0.1606	0.6252
0.85	126.0	1.0321	0.688
0.85	186.0	0.5269	0.7005
0.85	198.0	1.1072	0.7308
0.85	210.0	0.1753	0.4794
0.85	222.0	0.8679	0.5789
0.85	234.0	-0.3774	0.5932

CLAS Physics Database