Measurement E151M2063

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_LL
ε_L:	0.3512
Q²:	0.2915 GeV²
W:	1475.0 GeV
E_beam:	2.2596 GeV
ε:	0.8612

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty	syst. uncert.
0.75	90.0	-0.8587	0.684	0.0634
0.75	102.0	0.4308	0.7265	0.0411
0.75	246.0	0.2324	0.8037	0.0336
0.85	234.0	0.8414	0.8582	0.0624
0.85	246.0	0.2304	0.7857	0.0335
0.85	270.0	-0.1073	0.7767	0.0308
0.95	282.0	1.6053	1.1026	0.1087
0.65	114.0	0.6999	1.344	0.071
0.75	246.0	0.3352	1.2916	0.043
0.85	66.0	1.5047	1.6348	0.1415
0.85	114.0	-5.2456	5.2456	0.483
0.85	258.0	-0.0186	1.3347	0.03
0.85	282.0	2.1357	1.2243	0.1986

CLAS Physics Database