Measurement E151M21

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:	0.0642
Q²:	0.0084 GeV²
W:	1235.0 GeV
E_beam:	1.0539 GeV
ε:	0.9196

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_UL	uncertainty
0.55	258.0	-0.7658	0.3551
0.55	270.0	-0.3007	0.435
0.65	234.0	-0.1744	0.5039
0.65	246.0	-0.425	0.3646
0.65	258.0	0.4059	0.4426
0.65	270.0	0.0205	0.4254
0.75	174.0	0.2691	0.5499
0.75	246.0	0.6338	0.4001
0.75	258.0	0.3586	0.4385

CLAS Physics Database