Measurement E151M2924

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:	0.7731
Q²:	0.1435 GeV²
W:	1235.0 GeV
E_beam:	1.9889 GeV
ε:	0.9507

Slice: cos(θ_π⁺) =

Measurement data
cos(θ_π⁺)	φ(π⁺), [deg]	A_LU	uncertainty	syst. uncert.
0.35	66.0	0.0698	0.2557	0.03
0.45	66.0	0.2678	0.261	0.0305
0.45	78.0	0.0157	0.2392	0.03
0.45	282.0	0.1515	0.2263	0.0302
0.55	78.0	-0.6987	0.1917	0.0331
0.55	270.0	-0.4216	0.246	0.0312
0.55	282.0	-0.015	0.2075	0.03
0.65	258.0	-0.3509	0.2439	0.0308
0.65	270.0	0.4005	0.1848	0.0311
0.65	282.0	-0.2421	0.1906	0.0304
0.75	90.0	0.3546	0.2479	0.0308
0.75	258.0	0.1122	0.191	0.0301
0.75	270.0	-0.0441	0.1764	0.03
0.75	282.0	-0.2011	0.2074	0.0303
0.85	90.0	0.1617	0.2101	0.0302
0.85	102.0	-0.2984	0.1798	0.0306
0.85	114.0	0.3589	0.1795	0.0308
0.85	126.0	0.1485	0.222	0.0301
0.85	258.0	0.1035	0.2509	0.0301
0.85	270.0	0.148	0.2211	0.0301
0.85	282.0	-0.0757	0.2693	0.03
0.95	78.0	-0.2905	0.2509	0.0306
0.95	90.0	0.2426	0.2019	0.0304
0.95	102.0	-0.0954	0.2225	0.0301
0.95	114.0	0.1286	0.2539	0.0301
0.95	126.0	0.0531	0.2062	0.03
0.95	138.0	-0.0336	0.2107	0.03
0.95	150.0	0.01	0.2398	0.03
0.95	174.0	0.0968	0.2328	0.0301

CLAS Physics Database