Measurement E151M1417

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:	0.061
Q²:	0.0593 GeV²
W:	1475.0 GeV
E_beam:	1.0539 GeV
ε:	0.5361

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty	syst. uncert.
0.35	54.0	0.7933	0.8093	0.0944
0.55	246.0	-1.2102	0.7602	0.1398
0.65	234.0	-0.8585	0.8026	0.1014
0.65	246.0	-0.2878	0.5696	0.0442
0.65	258.0	-1.347	0.5528	0.1549
0.75	246.0	0.1612	0.7917	0.0351
0.75	258.0	-0.7412	0.6378	0.0888
0.85	246.0	0.2138	0.7761	0.0385
0.85	258.0	0.5236	0.6363	0.0662
0.85	270.0	1.6211	0.7826	0.1853

CLAS Physics Database