Measurement E151M2436

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:	0.0273
Q²:	0.0844 GeV²
W:	1925.0 GeV
E_beam:	2.999 GeV
ε:	0.7765

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty	syst. uncert.
0.75	186.0	-0.5709	1.0816	0.0511
0.85	102.0	-0.8341	1.0013	0.0675
0.85	114.0	-0.9348	0.9996	0.0741
0.85	126.0	-0.9745	0.9861	0.0768
0.85	210.0	-0.5849	0.9881	0.052

CLAS Physics Database