Measurement E151M181

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_UL
ε_L:	0.0063
Q²:	0.005 GeV²
W:	1475.0 GeV
E_beam:	1.0539 GeV
ε:	0.61

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_UL	uncertainty
0.35	42.0	0.2659	0.8349
0.35	54.0	1.3715	0.8386
0.45	54.0	0.4238	0.7534
0.45	222.0	-0.438	0.7191
0.55	210.0	0.3724	0.7932
0.55	234.0	0.3796	0.7097
0.75	222.0	1.6925	0.7261
0.75	234.0	-0.4988	0.6047
0.85	222.0	0.4665	0.6579
0.85	234.0	-0.2332	0.6377

CLAS Physics Database