Measurement E151M2136

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:	0.0882
Q²:	0.1205 GeV²
W:	1655.0 GeV
E_beam:	2.2596 GeV
ε:	0.8137

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty
0.85	114.0	-1.732	1.442
0.85	222.0	0.7262	1.2191
0.85	234.0	0.0088	1.2014
0.65	54.0	-0.4792	0.7441

CLAS Physics Database