Measurement E151M1118

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:	0.262
Q²:	0.496 GeV²
W:	1655.0 GeV
E_beam:	2.999 GeV
ε:	0.8315

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_UL	uncertainty	syst. uncert.
0.45	102.0	-0.0543	0.8132	0.0303
0.55	102.0	-1.4632	0.5359	0.1111
0.65	234.0	0.3222	0.801	0.0381
0.75	66.0	-0.1033	0.7783	0.0309
0.75	102.0	0.2518	0.8579	0.0352
0.75	222.0	1.3101	0.8323	0.1003
0.75	234.0	0.1841	0.7848	0.0329
0.85	54.0	0.0015	0.7281	0.03
0.85	66.0	-0.629	0.6828	0.0549
0.85	78.0	0.4366	0.8303	0.0438
0.85	210.0	-0.7185	0.7347	0.0605
0.85	222.0	-0.4256	0.6699	0.0432
0.85	234.0	2.5156	2.5156	0.1863
0.85	246.0	1.5083	0.8438	0.1143
0.85	258.0	-0.2051	0.615	0.0335
0.85	270.0	0.0549	0.7772	0.0303
0.85	282.0	-1.2677	0.5548	0.0974
0.95	210.0	0.2515	0.8448	0.0352
0.95	222.0	0.6271	0.8246	0.0548
0.95	234.0	-0.2018	0.692	0.0334
0.95	258.0	0.7149	0.857	0.0602
0.95	270.0	-0.0021	0.6008	0.03
0.95	294.0	0.7129	0.7524	0.0601
0.95	306.0	-0.1805	0.6071	0.0328

CLAS Physics Database