Measurement E151M448

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:	0.0385
Q²:	0.0593 GeV²
W:	1595.0 GeV
E_beam:	1.3383 GeV
ε:	0.5483

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_UL	uncertainty	syst. uncert.
0.65	222.0	-0.6681	0.7821	0.0502
0.75	246.0	-0.8661	0.7213	0.0602
0.85	234.0	0.3165	1.0057	0.0355
0.85	258.0	0.7248	1.1936	0.053
0.55	234.0	-0.4473	0.7139	0.0408
0.85	126.0	0.9459	0.7477	0.0658
0.85	234.0	0.0915	0.6605	0.0305

CLAS Physics Database