Measurement E151M2135

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:	0.076
Q²:	0.101 GeV²
W:	1655.0 GeV
E_beam:	2.2596 GeV
ε:	0.8204

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty
0.75	294.0	-0.083	1.0119
0.85	102.0	-2.3915	1.1364
0.85	114.0	-3.8087	3.8087
0.85	234.0	-0.42	1.2839
0.65	114.0	1.2983	0.7845
0.75	282.0	0.079	0.745
0.85	102.0	-2.6415	2.6415
0.85	114.0	-0.2186	0.8127
0.85	210.0	0.9081	1.0022
0.85	234.0	0.1727	0.8809

CLAS Physics Database