Measurement E151M2568

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_LU
ε_L:	0.0124
Q²:	0.005 GeV²
W:	1385.0 GeV
E_beam:	1.0539 GeV
ε:	0.7695

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LU	uncertainty
0.65	54.0	0.0035	0.2156
0.75	222.0	0.0574	0.2381
0.75	234.0	-0.1777	0.2375
0.75	246.0	-0.2733	0.2402
0.85	234.0	0.0825	0.2573

CLAS Physics Database