Measurement E151M1241

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:	0.9194
Q²:	0.205 GeV²
W:	1205.0 GeV
E_beam:	1.0539 GeV
ε:	0.7681

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty	syst. uncert.
0.35	294.0	-0.3133	0.6059	0.0464
0.45	282.0	-0.2054	0.4991	0.0379
0.45	294.0	0.0663	0.5435	0.0309
0.55	270.0	-0.4317	0.5211	0.0572
0.55	282.0	0.7188	0.4494	0.0864
0.65	270.0	-0.1961	0.5007	0.0373
0.65	282.0	-0.012	0.5902	0.03
0.85	126.0	0.2075	0.6267	0.0381

CLAS Physics Database