Measurement E151M446

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:	0.0285
Q²:	0.0415 GeV²
W:	1595.0 GeV
E_beam:	1.3383 GeV
ε:	0.5656

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_UL	uncertainty
0.65	222.0	1.6267	0.6382
0.75	162.0	-1.1011	0.7005
0.75	234.0	0.9214	0.716
0.75	246.0	-0.8832	0.677
0.85	246.0	0.381	0.6559
0.55	222.0	-0.1951	0.9123
0.85	222.0	1.0097	1.1865
0.85	234.0	-0.9593	0.5773
0.85	246.0	-0.2261	0.8455

CLAS Physics Database