Measurement E151M701

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:	0.0449
Q²:	0.0707 GeV²
W:	1685.0 GeV
E_beam:	1.9889 GeV
ε:	0.7423

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_UL	uncertainty	syst. uncert.
0.55	222.0	0.0529	0.6069	0.0302
0.65	138.0	0.5045	0.6316	0.043
0.65	222.0	1.6704	0.6431	0.1065
0.75	198.0	-0.0303	0.541	0.0301
0.75	210.0	0.6443	0.5848	0.0495
0.75	222.0	0.646	0.5944	0.0496
0.75	234.0	0.2785	0.5857	0.0345
0.75	270.0	0.46	0.5871	0.0411
0.75	282.0	0.2941	0.5276	0.035
0.85	114.0	-0.6804	0.5421	0.0513
0.85	126.0	-0.0188	0.5764	0.03
0.85	222.0	0.9082	0.5815	0.0631

CLAS Physics Database