Measurement E151M1168

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:	0.1279
Q²:	0.2915 GeV²
W:	1775.0 GeV
E_beam:	2.999 GeV
ε:	0.8175

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_UL	uncertainty
0.75	90.0	0.3865	0.8938
0.85	78.0	-0.4267	0.8707
0.85	90.0	-0.1218	0.8989
0.85	102.0	-0.3586	0.8347
0.85	186.0	1.5766	0.9419
0.85	198.0	-0.6515	0.8452
0.85	210.0	1.0901	0.911
0.85	222.0	2.3087	0.9558
0.85	234.0	-0.2596	0.7097
0.95	186.0	1.1082	0.8577
0.95	198.0	0.8243	0.9481
0.95	210.0	0.8541	0.9249
0.95	234.0	0.4196	0.7272
0.95	246.0	-0.9521	0.5772
0.95	258.0	1.6955	0.9461

CLAS Physics Database