Measurement E151M484

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:	1.0708
Q²:	0.2915 GeV²
W:	1235.0 GeV
E_beam:	1.9889 GeV
ε:	0.9145

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_UL	uncertainty	syst. uncert.
0.55	270.0	-0.2551	0.5189	0.0338
0.55	282.0	0.029	0.4384	0.0301
0.55	294.0	0.5656	0.5212	0.0458
0.65	270.0	1.6648	1.6648	0.1061
0.65	282.0	0.6806	0.5948	0.0513
0.75	90.0	-0.6881	0.4909	0.0517
0.75	270.0	0.0836	0.5564	0.0304
0.75	282.0	-0.2476	0.4362	0.0336
0.85	78.0	-0.4963	0.4689	0.0427
0.85	90.0	-0.4143	0.4314	0.0393
0.85	102.0	-0.3215	0.4684	0.0359
0.85	270.0	0.3843	0.5625	0.0381
0.85	294.0	-0.8155	0.411	0.0582
0.95	114.0	1.0037	0.5543	0.0683

CLAS Physics Database