Measurement E151M2244

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:	0.6528
Q²:	0.7075 GeV²
W:	1415.0 GeV
E_beam:	2.999 GeV
ε:	0.8767

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty	syst. uncert.
0.85	270.0	1.3345	0.723	0.1013
0.85	306.0	-0.1363	0.7836	0.0316
0.85	318.0	0.044	0.7992	0.0302

CLAS Physics Database