Measurement E151M2153

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:	0.0432
Q²:	0.0707 GeV²
W:	1715.0 GeV
E_beam:	2.2596 GeV
ε:	0.7875

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty	syst. uncert.
0.75	270.0	-0.7553	0.8057	0.0756
0.85	102.0	0.6543	1.1717	0.0672
0.85	114.0	0.3569	1.0014	0.0445
0.65	138.0	-0.4117	0.7367	0.0402
0.65	210.0	-0.4482	0.7842	0.0418
0.85	102.0	-1.5398	0.666	0.1046

CLAS Physics Database