Measurement E151M1531

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:	0.028
Q²:	0.0101 GeV²
W:	1385.0 GeV
E_beam:	1.3383 GeV
ε:	0.8661

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty	syst. uncert.
0.65	234.0	-0.0689	0.7628	0.0303
0.75	222.0	-1.1805	0.8442	0.0769
0.75	246.0	-0.5028	0.8558	0.0425

CLAS Physics Database