Measurement E151M2268

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:	0.5335
Q²:	0.7075 GeV²
W:	1475.0 GeV
E_beam:	2.999 GeV
ε:	0.8588

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty	syst. uncert.
0.55	90.0	-0.0804	0.914	0.0306
0.65	114.0	0.6722	0.8473	0.0572
0.65	234.0	1.6722	0.9123	0.1249
0.75	102.0	1.6197	0.9622	0.1212
0.75	258.0	-0.1798	0.8926	0.0327
0.75	282.0	2.6819	2.6819	0.1968
0.85	246.0	-0.7878	0.7578	0.0645
0.85	294.0	0.718	0.6507	0.0601
0.85	306.0	0.3541	0.8151	0.0395
0.95	282.0	-1.5485	0.6808	0.1162

CLAS Physics Database