Measurement E151M3272

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_LU
ε_L:	0.4349
Q²:	0.348 GeV²
W:	1445.0 GeV
E_beam:	2.2596 GeV
ε:	0.8587

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LU	uncertainty	syst. uncert.
0.75	90.0	-0.1117	0.2523	0.0301
0.75	246.0	0.3178	0.2336	0.0307
0.85	282.0	-0.0543	0.2528	0.03

CLAS Physics Database