Measurement E151M1494

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_LL
ε_L:	0.0579
Q²:	0.0143 GeV²
W:	1325.0 GeV
E_beam:	1.3383 GeV
ε:	0.9061

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LL	uncertainty	syst. uncert.
0.55	246.0	0.3161	0.6426	0.0355
0.55	258.0	-0.4218	0.7616	0.0392
0.65	126.0	0.1359	0.7675	0.0311
0.65	138.0	1.4625	0.7415	0.0926
0.65	150.0	-0.3549	0.6686	0.0368
0.65	222.0	0.0002	0.6969	0.03
0.65	234.0	-0.0478	0.5782	0.0301
0.65	246.0	0.3088	0.5376	0.0352
0.65	258.0	-0.377	0.6205	0.0376
0.75	138.0	-0.439	0.5651	0.0399
0.75	150.0	0.5159	0.7312	0.0431
0.75	174.0	0.6476	0.6346	0.0491
0.75	222.0	-0.3041	0.6972	0.0351
0.75	234.0	0.4795	0.509	0.0415
0.75	246.0	0.5102	0.619	0.0428
0.75	258.0	0.9174	0.6439	0.0626
0.85	222.0	0.8107	0.6369	0.0571
0.85	234.0	-0.5199	0.5466	0.0433
0.85	246.0	0.0406	0.46	0.0301
0.85	258.0	0.1059	0.6013	0.0307
0.45	42.0	-1.0689	0.8636	0.069
0.55	234.0	0.1039	0.9399	0.0306
0.55	246.0	-0.1172	0.8185	0.0308
0.55	258.0	-0.2838	1.0191	0.0342
0.65	138.0	0.1368	0.9749	0.031
0.65	210.0	0.7685	0.923	0.0538
0.65	222.0	0.7559	0.7796	0.0532
0.65	234.0	1.7457	0.4896	0.1058
0.65	246.0	-0.2273	0.6815	0.0328
0.65	258.0	0.0885	0.773	0.0304
0.75	138.0	-2.2876	2.2876	0.1364
0.75	150.0	0.5034	0.9509	0.0419
0.75	222.0	-0.1914	0.8104	0.032
0.75	234.0	0.267	0.669	0.0338
0.75	246.0	0.2342	0.6324	0.0329
0.75	258.0	1.2906	0.6849	0.0808
0.85	222.0	-1.5054	0.5811	0.0925
0.85	234.0	-0.4362	0.6933	0.0393
0.85	246.0	-0.6038	0.6395	0.0462
0.85	258.0	-0.4774	0.8235	0.0409

CLAS Physics Database