Measurement E151M956

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:	1.2645
Q²:	0.496 GeV²
W:	1235.0 GeV
E_beam:	2.999 GeV
ε:	0.9421

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_UL	uncertainty	syst. uncert.
0.15	66.0	0.3764	0.7475	0.0407
0.35	282.0	0.3181	0.6335	0.038
0.35	294.0	-0.4166	0.6113	0.0427
0.45	282.0	0.3915	0.7141	0.0415
0.45	294.0	-0.5513	0.5179	0.0502
0.55	78.0	-1.9549	0.2968	0.146
0.55	282.0	0.7913	0.5935	0.0652
0.55	294.0	-1.1418	0.3774	0.0887
0.55	306.0	0.3086	0.6261	0.0375
0.65	66.0	-0.5283	0.5457	0.0489
0.65	78.0	0.1868	0.6618	0.033
0.65	90.0	-0.7829	0.5215	0.0646
0.65	270.0	0.8544	0.7544	0.0693
0.65	282.0	0.0511	0.5954	0.0302
0.65	294.0	0.1763	0.5485	0.0327
0.65	306.0	-0.4742	0.5623	0.0458
0.75	78.0	-0.9827	0.4924	0.0778
0.75	90.0	-1.32	0.4564	0.101
0.75	102.0	0.4552	0.7577	0.0448
0.75	270.0	0.6209	0.572	0.0544
0.75	282.0	-0.3687	0.5507	0.0403
0.75	294.0	0.4698	0.6559	0.0456
0.75	318.0	0.2738	0.6517	0.0361
0.85	54.0	-0.5292	0.5682	0.0489
0.85	78.0	-0.2368	0.5825	0.0346
0.85	102.0	-0.3605	0.5287	0.0399
0.85	258.0	-0.3583	0.5401	0.0398
0.85	270.0	0.8454	0.6754	0.0687
0.85	282.0	0.3994	0.5995	0.0419
0.85	294.0	0.0906	0.5914	0.0307
0.85	306.0	0.4133	0.5913	0.0426
0.95	114.0	-0.3926	0.5971	0.0415

CLAS Physics Database