Measurement E151M1936

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:	0.0333
Q²:	0.0593 GeV²
W:	1715.0 GeV
E_beam:	1.9889 GeV
ε:	0.7172

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty
0.75	210.0	-0.5501	0.8123
0.75	222.0	0.6616	0.8187
0.75	270.0	-0.7092	0.7693
0.85	198.0	-0.3691	0.7398
0.85	210.0	-1.6277	0.7068
0.85	222.0	-1.1088	0.7388

CLAS Physics Database