Measurement E151M736

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:	0.868
Q²:	0.1715 GeV²
W:	1235.0 GeV
E_beam:	2.2596 GeV
ε:	0.9577

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_UL	uncertainty	syst. uncert.
0.55	78.0	-0.3074	0.4036	0.0362
0.55	270.0	-0.1426	0.4457	0.0314
0.55	282.0	-0.5858	0.3125	0.0524
0.65	282.0	-2.379	1.6787	0.2216
0.75	90.0	-3.1057	2.1892	0.2882
0.75	270.0	-0.6	2.039	0.063
0.75	282.0	0.7219	2.1234	0.0731
0.85	90.0	-0.1579	2.8785	0.0334
0.85	102.0	0.0852	2.4386	0.031
0.95	114.0	-3.423	7.782	0.3173
0.95	126.0	-0.2536	7.5535	0.0381
0.95	138.0	2.1322	8.5642	0.1991
0.55	294.0	0.0865	0.4302	0.0305
0.65	270.0	-0.1712	0.3771	0.032
0.65	282.0	0.4618	0.3994	0.0426
0.75	270.0	0.1035	0.4537	0.0308
0.75	282.0	0.494	0.4275	0.0442
0.85	90.0	-0.6515	0.3723	0.0522
0.85	102.0	-0.0149	0.4604	0.03
0.85	114.0	-0.5786	0.4409	0.0484
0.85	270.0	-0.1264	0.4811	0.0311
0.85	282.0	0.3625	0.5056	0.0383
0.95	90.0	0.0361	0.7568	0.0301
0.95	102.0	-0.2001	0.7033	0.0327
0.95	114.0	0.9011	0.7025	0.0663
0.95	126.0	-0.4263	0.7285	0.041

CLAS Physics Database