Measurement E151M346

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:	0.3049
Q²:	0.2445 GeV²
W:	1415.0 GeV
E_beam:	1.3383 GeV
ε:	0.6611

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_UL	uncertainty
0.85	126.0	1.3764	0.6556
0.85	258.0	-0.4454	0.8179
0.95	282.0	0.5658	1.0206
0.85	270.0	-0.6262	0.6217

CLAS Physics Database