Measurement E151M449

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:	0.0445
Q²:	0.0707 GeV²
W:	1595.0 GeV
E_beam:	1.3383 GeV
ε:	0.5371

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_UL	uncertainty	syst. uncert.
0.75	234.0	-0.5651	0.7681	0.0454
0.75	246.0	1.6389	0.6123	0.1052
0.85	246.0	0.1167	0.5586	0.0323

CLAS Physics Database