Measurement E151M1664

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:	0.0149
Q²:	0.0205 GeV²
W:	1595.0 GeV
E_beam:	1.3383 GeV
ε:	0.5862

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty	syst. uncert.
0.45	42.0	0.6967	0.782	0.0511
0.65	222.0	-1.654	0.9025	0.1036
0.85	234.0	-0.7664	0.8594	0.0549
0.45	222.0	-0.8477	1.1905	0.0577
0.55	222.0	-1.9365	0.8248	0.1165
0.55	234.0	-1.9562	0.9154	0.1176
0.75	234.0	0.2298	1.1044	0.0328
0.85	138.0	-2.4163	0.6405	0.1437
0.85	222.0	0.6647	1.0689	0.0489
0.85	234.0	-1.0676	1.0943	0.0689

CLAS Physics Database