Measurement E151M3090

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_LU
ε_L:	0.1399
Q²:	0.1435 GeV²
W:	1565.0 GeV
E_beam:	1.9889 GeV
ε:	0.8118

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LU	uncertainty	syst. uncert.
0.45	282.0	0.2821	0.27	0.0305
0.55	282.0	-0.0472	0.274	0.03
0.65	114.0	0.0297	0.2553	0.03
0.65	126.0	0.0917	0.2676	0.0301
0.65	234.0	0.3628	0.2418	0.0309
0.65	294.0	-0.2	0.2062	0.0303
0.75	114.0	-0.1973	0.2401	0.0303
0.75	126.0	0.3234	0.2489	0.0307
0.75	138.0	0.4537	0.2389	0.0313
0.75	198.0	0.4111	0.2454	0.0311
0.75	210.0	0.0636	0.2351	0.03
0.75	222.0	0.1891	0.2172	0.0302
0.75	234.0	-0.2216	0.2498	0.0303
0.75	246.0	-0.1287	0.2702	0.0301
0.75	294.0	-0.3781	0.245	0.0309
0.85	90.0	0.318	0.2271	0.0307
0.85	126.0	0.0813	0.2727	0.03
0.85	210.0	-0.043	0.2759	0.03
0.85	222.0	-0.0651	0.218	0.03
0.85	246.0	-0.1865	0.1937	0.0302
0.85	258.0	-0.4849	0.2561	0.0315
0.95	90.0	0.2878	0.2493	0.0305
0.95	102.0	-0.0758	0.2827	0.03
0.95	222.0	0.1992	0.2639	0.0303
0.95	234.0	-0.3106	0.251	0.0306
0.95	246.0	-0.09	0.2791	0.0301
0.95	258.0	-0.6738	0.1866	0.0329

CLAS Physics Database