Measurement E151M1132

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:	0.2552
Q²:	0.5925 GeV²
W:	1685.0 GeV
E_beam:	2.999 GeV
ε:	0.7962

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_UL	uncertainty	syst. uncert.
0.85	234.0	1.8636	0.869	0.1395
0.85	246.0	-0.4205	0.623	0.0429
0.85	258.0	-0.1778	0.6849	0.0327
0.95	234.0	-0.3729	0.629	0.0405
0.95	306.0	0.9054	0.7215	0.0727

CLAS Physics Database