Measurement E151M62

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:	0.0337
Q²:	0.0071 GeV²
W:	1295.0 GeV
E_beam:	1.0539 GeV
ε:	0.8735

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_UL	uncertainty	syst. uncert.
0.55	234.0	0.2422	0.7182	0.0407
0.55	246.0	0.7834	0.6719	0.094
0.55	258.0	-0.4735	0.5939	0.0617
0.65	222.0	-0.3603	0.6336	0.0508
0.65	234.0	0.1591	0.5163	0.035
0.65	246.0	0.3377	0.5433	0.0487
0.65	258.0	0.144	0.5459	0.0342
0.75	162.0	0.0321	0.6893	0.0302
0.75	234.0	-0.1415	0.5382	0.034
0.75	246.0	0.279	0.5602	0.0437
0.75	258.0	0.5074	0.6721	0.0651
0.85	222.0	0.8254	0.6718	0.0986
0.85	234.0	0.2565	0.5927	0.0418
0.85	246.0	0.8932	0.6478	0.106
0.85	258.0	-0.6554	0.4608	0.0804

CLAS Physics Database