Measurement E151M252

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:	0.06
Q²:	0.0121 GeV²
W:	1295.0 GeV
E_beam:	1.3383 GeV
ε:	0.9245

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_UL	uncertainty	syst. uncert.
0.65	246.0	-0.3404	0.3518	0.0555
0.75	234.0	1.2093	0.5151	0.0807
0.65	258.0	-0.3408	0.7343	0.0363
0.75	246.0	-0.7595	0.523	0.0547
0.75	258.0	-0.6286	0.603	0.0483
0.85	246.0	-0.1596	0.7316	0.0315

CLAS Physics Database