Measurement E151M1948

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:	0.0338
Q²:	0.0707 GeV²
W:	1745.0 GeV
E_beam:	1.9889 GeV
ε:	0.6781

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty	syst. uncert.
0.85	114.0	-0.6148	0.8502	0.0478
0.85	222.0	-1.8551	0.7442	0.1163

CLAS Physics Database