Measurement E151M1023

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:	0.1991
Q²:	0.101 GeV²
W:	1445.0 GeV
E_beam:	2.999 GeV
ε:	0.9591

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_UL	uncertainty
0.35	78.0	-0.5252	0.8041
0.75	102.0	0.5641	0.8066
0.75	246.0	1.9562	0.9923
0.75	258.0	-0.5232	0.777
0.85	126.0	0.0093	0.8672
0.85	246.0	-0.023	0.852

CLAS Physics Database