Measurement E151M121

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:	0.249
Q²:	0.1205 GeV²
W:	1355.0 GeV
E_beam:	1.0539 GeV
ε:	0.6795

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_UL	uncertainty
0.35	42.0	0.1992	0.8626
0.45	258.0	0.5324	0.854
0.55	246.0	0.1793	0.8371
0.55	258.0	0.2739	0.6994
0.55	270.0	1.4847	0.6695
0.65	234.0	0.083	0.8051
0.65	246.0	-1.2051	0.5618
0.65	258.0	-0.5166	0.5373
0.65	270.0	-0.4775	0.5098
0.75	138.0	0.0368	0.7094
0.75	174.0	-0.2955	0.678
0.75	234.0	0.3262	0.8014
0.75	246.0	-0.5449	0.5045
0.75	258.0	0.8831	0.5794
0.75	270.0	0.2833	0.5652
0.75	282.0	0.2173	0.6163
0.85	126.0	-1.6869	0.5568
0.85	138.0	-0.5891	0.7134
0.85	150.0	-0.1722	0.7996
0.85	162.0	-0.6953	0.6772
0.85	174.0	-0.5968	0.6921
0.85	246.0	0.0714	0.6676
0.85	258.0	1.0759	0.6334
0.85	270.0	0.2265	0.5181
0.85	282.0	1.2352	0.6039
0.85	294.0	-0.7389	0.6652
0.95	246.0	0.3274	0.6421

CLAS Physics Database