Measurement E151M1179

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:	0.1017
Q²:	0.2445 GeV²
W:	1805.0 GeV
E_beam:	2.999 GeV
ε:	0.8119

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_UL	uncertainty
0.75	222.0	0.0402	0.9656
0.85	78.0	-1.1572	0.7412
0.85	90.0	-1.2498	0.6146
0.85	102.0	-0.5429	0.7701
0.85	186.0	0.0708	0.9869
0.85	198.0	0.5189	0.9593
0.85	210.0	1.3745	0.958
0.85	222.0	-1.1166	0.6719
0.85	234.0	-0.6691	0.701
0.95	198.0	0.2171	0.8136
0.95	210.0	-0.7098	0.7471
0.95	222.0	0.8507	0.8605
0.95	234.0	0.0222	0.8331

CLAS Physics Database