Measurement E151M423

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:	0.013
Q²:	0.0143 GeV²
W:	1565.0 GeV
E_beam:	1.3383 GeV
ε:	0.6446

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_UL	uncertainty	syst. uncert.
0.55	30.0	-1.0357	0.7329	0.0692
0.55	222.0	-0.1313	0.9035	0.031
0.55	234.0	0.1046	1.0396	0.0307
0.65	150.0	4.1723	4.1723	0.253
0.65	222.0	-0.5633	0.7622	0.0453
0.75	222.0	-1.3411	0.5035	0.0861
0.75	234.0	0.7275	1.2452	0.0531
0.85	138.0	-1.0443	0.7502	0.0697
0.85	222.0	-0.5177	0.7328	0.0433
0.85	234.0	-0.3848	0.7386	0.0379
0.45	30.0	-0.2931	0.7307	0.0351
0.55	42.0	-0.0673	0.7294	0.0303
0.55	210.0	0.1323	0.6021	0.0311
0.55	234.0	0.1411	0.7436	0.0312
0.65	138.0	-0.7705	0.6929	0.0564
0.75	234.0	0.7208	0.6416	0.0538

CLAS Physics Database