Measurement E151M200

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:	0.1972
Q²:	0.0205 GeV²
W:	1205.0 GeV
E_beam:	1.3383 GeV
ε:	0.9578

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_UL	uncertainty	syst. uncert.
0.55	270.0	0.1415	0.3601	0.0312
0.65	258.0	-0.4927	0.2678	0.0429
0.65	270.0	-0.0177	0.2561	0.0346
0.75	150.0	1.2635	0.9858	0.0818
0.75	162.0	0.4411	0.4859	0.0406
0.75	186.0	-0.6567	0.4679	0.0496
0.75	246.0	-0.0592	0.3084	0.0375
0.75	258.0	-0.5303	0.305	0.0558
0.75	270.0	0.1273	0.3595	0.031
0.85	150.0	0.6096	0.4165	0.0489
0.85	162.0	0.033	0.3518	0.0316
0.85	174.0	-0.221	0.2968	0.0334
0.85	186.0	0.9674	0.3781	0.0668

CLAS Physics Database