Measurement E151M424

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:	0.0154
Q²:	0.0171 GeV²
W:	1565.0 GeV
E_beam:	1.3383 GeV
ε:	0.642

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_UL	uncertainty	syst. uncert.
0.45	30.0	-0.0948	0.6727	0.0306
0.45	42.0	-0.1285	0.6196	0.035
0.55	42.0	-0.9619	0.6805	0.0667
0.55	162.0	0.6194	0.7566	0.0487
0.65	222.0	0.3559	0.7481	0.0372
0.65	234.0	0.0455	0.6609	0.0301
0.75	222.0	0.245	0.6502	0.0336
0.75	234.0	0.3681	0.6585	0.0377
0.75	246.0	-0.2727	0.7125	0.0344
0.85	138.0	-0.6354	0.6075	0.0495
0.85	234.0	0.1499	0.6782	0.0314
0.55	222.0	-0.0265	1.0479	0.03
0.55	234.0	3.8314	3.8314	0.2327
0.65	138.0	0.6151	1.3834	0.0477
0.65	150.0	-1.289	0.7346	0.0832
0.65	210.0	-0.9569	0.7398	0.065
0.65	222.0	1.9773	1.3923	0.1228
0.65	234.0	1.5718	1.5269	0.0993
0.75	210.0	-0.4496	0.875	0.0404
0.75	222.0	0.7904	1.011	0.0563
0.75	234.0	0.0454	1.012	0.0301
0.75	246.0	0.3586	1.3013	0.037
0.85	138.0	-1.0593	0.6794	0.0705
0.85	210.0	1.8553	1.3839	0.1157
0.85	222.0	0.0549	0.8673	0.0302
0.85	234.0	-0.5583	0.7292	0.0451

CLAS Physics Database