Measurement E151M1167

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:	0.1128
Q²:	0.2445 GeV²
W:	1775.0 GeV
E_beam:	2.999 GeV
ε:	0.8281

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_UL	uncertainty	syst. uncert.
0.75	198.0	0.2982	1.0096	0.0371
0.85	78.0	-1.0154	0.7162	0.0801
0.85	102.0	3.2714	3.2714	0.241
0.85	186.0	-0.4354	0.9119	0.0437
0.85	198.0	1.0524	0.9241	0.0826
0.85	210.0	-0.2967	0.7464	0.037
0.85	222.0	0.1346	0.7967	0.0316
0.85	234.0	0.4265	0.796	0.0433
0.85	246.0	-0.8684	0.7612	0.0702
0.95	198.0	2.17	1.0622	0.1614
0.95	210.0	-1.0009	0.6313	0.0791
0.95	222.0	0.8874	0.8577	0.0715
0.95	234.0	-1.004	0.6589	0.0793
0.95	246.0	1.6514	0.8742	0.1244

CLAS Physics Database