Measurement E151M473

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:	0.3024
Q²:	0.0415 GeV²
W:	1235.0 GeV
E_beam:	1.9889 GeV
ε:	0.9735

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_UL	uncertainty	syst. uncert.
0.55	78.0	-0.8793	0.4071	0.0616
0.55	90.0	-1.9885	1.9885	0.1253
0.65	90.0	-0.3379	0.4576	0.0364
0.65	258.0	0.3404	0.4672	0.0365
0.65	270.0	0.3653	0.4403	0.0374
0.75	126.0	1.2201	0.5237	0.0804
0.75	246.0	-0.3469	0.4429	0.0367
0.75	258.0	-0.4694	0.3196	0.0415
0.75	270.0	-0.1979	0.4181	0.0324
0.85	126.0	-0.7365	0.423	0.0541
0.85	138.0	0.1551	0.5034	0.0315
0.85	150.0	0.5781	0.4595	0.0464
0.85	174.0	-0.2825	0.4407	0.0346
0.85	246.0	0.138	0.5148	0.0312
0.95	150.0	-0.0684	0.4996	0.0303
0.95	162.0	0.0726	0.4725	0.0303

CLAS Physics Database