Measurement E151M698

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:	0.0277
Q²:	0.0415 GeV²
W:	1685.0 GeV
E_beam:	1.9889 GeV
ε:	0.7561

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_UL	uncertainty
0.35	90.0	0.9341	0.6976
0.35	282.0	1.8346	1.8346
0.45	210.0	0.9791	0.6668
0.45	246.0	-0.8451	0.5198
0.45	258.0	-0.0553	0.6067
0.45	270.0	1.6908	0.6092
0.45	282.0	1.0442	0.5545
0.55	78.0	0.0483	0.6277
0.55	126.0	0.1064	0.677
0.55	138.0	-0.5664	0.5029
0.55	222.0	-0.2747	0.5465
0.55	258.0	0.822	0.6647
0.55	270.0	-0.2347	0.5686
0.55	282.0	0.03	0.6237
0.65	78.0	0.0844	0.5809
0.65	114.0	-0.3404	0.5979
0.65	126.0	-0.7647	0.4379
0.65	138.0	-0.4962	0.5448
0.65	198.0	0.7619	0.7037
0.65	210.0	1.9634	1.9634
0.65	222.0	1.1352	0.7088
0.65	282.0	0.0569	0.6304
0.65	294.0	-0.1863	0.5646
0.75	66.0	-0.0512	0.4906
0.75	186.0	-0.2811	0.6177
0.75	198.0	0.9009	0.5554
0.75	210.0	1.3921	0.5415
0.75	222.0	0.7472	0.4948
0.75	234.0	1.1248	0.6144
0.75	258.0	-1.0004	0.5291
0.75	270.0	-0.2696	0.4984
0.75	282.0	-0.6086	0.4241
0.85	114.0	-0.19	0.4987
0.85	126.0	-0.5207	0.4404
0.85	138.0	1.6264	0.6737
0.85	198.0	0.4284	0.6033
0.85	210.0	0.0637	0.557
0.85	222.0	-0.4025	0.4595
0.85	234.0	-0.3558	0.4721
0.85	270.0	0.8876	0.6277

CLAS Physics Database