Measurement E151M2103

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:	0.2172
Q²:	0.2445 GeV²
W:	1565.0 GeV
E_beam:	2.2596 GeV
ε:	0.8293

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty	syst. uncert.
0.95	234.0	5.2257	2.5248	0.4812
0.95	270.0	3.7776	2.5477	0.3485
0.95	282.0	1.9751	2.6436	0.184
0.75	114.0	-0.7804	0.8188	0.059
0.95	222.0	3.5905	1.4173	0.2355

CLAS Physics Database