Measurement E151M2102

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:	0.1931
Q²:	0.205 GeV²
W:	1565.0 GeV
E_beam:	2.2596 GeV
ε:	0.8416

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty	syst. uncert.
0.75	126.0	0.2544	0.8496	0.0343
0.75	222.0	-0.3168	0.6668	0.0563
0.85	78.0	-0.3353	0.6257	0.0418
0.85	90.0	2.7222	0.8556	0.252
0.85	222.0	-0.6775	1.0215	0.0533
0.85	234.0	-0.6329	0.7097	0.0632
0.95	246.0	-1.7054	1.4727	0.1149
0.95	258.0	0.9937	1.4773	0.0713
0.95	282.0	0.495	2.1138	0.0545

CLAS Physics Database